TPSM82822A_技术文档

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

TPSM8282x, TPSM8282xA 1-A, 2-A, and 3-A High Efficiency Step-Down Converter

MicroSiP™ Power Module with Integrated Inductor

1 Features

3 Description

•

1.1-mm profile MicroSiP™ power module

CISPR 11 class B compliant

Up to 95% efficiency

2.4-V to 5.5-V input voltage range

0.6-V to 4-V adjustable output voltage

Fixed output voltages available: 1.2-V, 1.8-V, 2.5-V

and 3.3-V

4-μA operating quiescent current

DCS-control topology

Power save mode option available for light load

efficiency

Forced-PWM option available for CCM operation

100% duty cycle for lowest dropout

Hiccup short circuit protection

Output discharge

Power good output with window comparator

Integrated soft start-up

Overtemperature protection

The TPSM8282x device family consists of a 1-A, 2-

A, and 3-A step-down converter MicroSiP^™power

modules optimized for small solution size and high

efficiency.

The power modules integrate a synchronous step-

down converter and an inductor to simplify design,

reduce external components and save PCB area.

The TPSM8282x is available in two flavors. The

first includes an automatically entered power save

mode to maintain high efficiency down to very light

loads for extending the system battery run-time. The

second version, the TPSM8282xA, runs in forced-

PWM maintaining a continuous conduction mode at

all currents to minimize the output ripple. In PWM

mode the converter operates with a nominal switching

frequency of 4MHz.

•

In power save mode, the device operates with

typically 4-µA quiescent current. Using the DCS-

Control topology, the device achieves excellent

load transient performance and accurate output

voltage regulation. The EN and PG pins, which

support sequencing configurations, bring a flexible

system design. An integrated soft start-up reduces

the inrush current required from the input supply.

Overtemperature protection and hiccup short circuit

protection deliver a robust and reliable solution.

PSPICE models available for: TPSM82821,

TPSM82822 and TPSM82823

2.0-mm × 2.5-mm × 1.1-mm 10-pin μSiL package

12 mm²total solution size (for the fixed output

voltage versions)

•

2 Applications

•

Optical modules

Machine vision

Industrial PCs

PLCs

Device Information

PART NUMBER⁽¹⁾

TPSM82821xSILR

TPSM82822xSILR

TPSM82823xSILR

PACKAGE

BODY SIZE (NOM)

Wired Networking

µSiL (10)

2.0 mm × 2.5 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

TPSM828222

100

V_OUT

1.8V/2A

V_IN

VIN

VOUT

95

90

85

80

75

70

65

60

2.4V to 5.5V

C1

4.7 µF

C2

EN

1 x 22 µF

FB

R3

100 k

GND

PG

POWER

GOOD

V_IN= 2.4V

V_IN= 3.3V

V_IN= 4.2V

V_IN= 5V

Fixed Output Application set at 1.8-V Output

Voltage

100µ

1m

10m

Load (A)

100m

1

3

D033

TPSM82823 Efficiency at 1.8-V Output Voltage

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

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Table of Contents

1 Features............................................................................1

2 Applications.....................................................................1

3 Description.......................................................................1

4 Revision History.............................................................. 2

5 Device Comparison Table...............................................3

6 Pin Configuration and Functions...................................3

7 Specifications.................................................................. 4

7.1 Absolute Maximum Ratings........................................ 4

7.2 ESD Ratings .............................................................. 4

7.3 Recommended Operating Conditions.........................4

7.4 Thermal Information....................................................4

7.5 Electrical Characteristics.............................................5

7.6 Typical Characteristics................................................6

8 Detailed Description........................................................7

8.1 Overview.....................................................................7

8.2 Functional Block Diagram...........................................7

8.3 Feature Description.....................................................7

8.4 Device Functional Modes..........................................10

9 Application and Implementation.................................. 11

9.1 Application Information..............................................11

9.2 Typical Applications...................................................11

10 Power Supply Recommendations..............................42

11 Layout...........................................................................42

11.1 Layout Guidelines................................................... 42

11.2 Layout Example...................................................... 42

12 Device and Documentation Support..........................44

12.1 Device Support....................................................... 44

12.2 Documentation Support.......................................... 44

12.3 Receiving Notification of Documentation Updates..44

12.4 Trademarks.............................................................44

12.5 Electrostatic Discharge Caution..............................44

12.6 Glossary..................................................................44

4 Revision History

NOTE: Page numbers for previous revisions may differ from page numbers in the current version.

Changes from Revision E (May 2021) to Revision F (November 2021)

Page

•

Updated description on first page to include the FPWM device......................................................................... 1

Added FPWM devices........................................................................................................................................ 3

Updated Section 8.3.1 to clarify the addition of the FPWM devices...................................................................7

Added application curves for all new FPWM devices.......................................................................................14

Added tape and reel information for FPWM devices........................................................................................ 45

Changes from Revision D (March 2021) to Revision E (May 2021)

Page

•

Released TPSM82823........................................................................................................................................1

Updated the first bullet in the Features ..............................................................................................................1

Added PSPICE bullet to the Features ............................................................................................................... 1

Updated Applications .........................................................................................................................................1

Changed name of the first column of the Device Comparison Table to "Orderable Part Number".....................3

Fixed slight error in the Functional Block Diagram ............................................................................................ 7

Added Equation 2 .............................................................................................................................................. 7

Updated Figure 9-1 to have an output capacitor option of 1 × 22 μF................................................................11

Expanded Table 9-1 with more choices of capacitors.......................................................................................12

Added EMI measurement plots to show CISPR compliance............................................................................14

Added SOA curves for the TPSM82823...........................................................................................................33

Added Section 12.1.2.1 ................................................................................................................................... 44

2

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

5 Device Comparison Table

OUTPUT VOLTAGE

OUTPUT CURRENT

ORDERABLE PART

NUMBER

MODE OF OPERATION

TPSM82821SILR

TPSM828211SILR

TPSM828212SILR

TPSM828213SILR

TPSM828214SILR

adjustable

1.2 V

1.8 V

Power save mode

Forced PWM

1 A

2.5 V

3.3 V

TPSM82821ASILR

adjustable

TPSM82822SILR

TPSM828221SILR

TPSM828222SILR

TPSM828223SILR

TPSM828224SILR

TPSM82822ASILR

TPSM82823SILR

TPSM82823ASILR

adjustable

1.2 V

1.8 V

Power save mode

2 A

3 A

2.5 V

3.3 V

adjustable

Forced PWM

Power save mode

Forced PWM

6 Pin Configuration and Functions

10

1

2

3

4

5

GND

VIN

9

GND

8

EN

FB

7

PG

VOUT

6

VOUT

Figure 6-1. µSiL Package (Top View)

Table 6-1. Pin Functions

I/O

DESCRIPTION

NAME

NO.

Device enable pin. To enable the device, this pin needs to be pulled high. Pulling this pin low

disables the device. Do not leave floating.

EN

3

I

Feedback pin. This pin must be connected to the center of the output voltage resistor divider.

For the fixed output voltage devices, connect this pin directly to the output voltage.

FB

8

9, 10

4

I

GND

PG

PWR

O

Ground pin

Power-good open-drain output pin with window comparator. The pullup resistor can be

connected to voltages up to 5.5 V. If unused, leave it floating.

VIN

1, 2

PWR

Input voltage pin

VOUT

5, 6, 7

Output voltage pin

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7 Specifications

7.1 Absolute Maximum Ratings

Over operating junction temperature range (unless otherwise noted) ⁽¹⁾

MIN

MAX

6

UNIT

V

Pin voltage

I_{SINK_PG}

T_J

VIN, VOUT, FB, EN, PG ⁽²⁾

Sink current at PG pin

–0.3

1

mA

°C

Operating junction temperature

Storage temperature

–40

–55

125

T_stg

°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress

ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under

Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device

reliability.

(2) All voltage values are with respect to the network ground terminal.

7.2 ESD Ratings

VALUE

±2000

±1000

UNIT

Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins⁽¹⁾

V_(ESD)

Electrostatic discharge

V

Charged device model (CDM), per JEDEC specification JESD22-C101, all pins⁽²⁾

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

MIN

MAX

5.5

4

UNIT

V_IN

Input voltage

2.4

0.6

V

V_OUT

V_PG

Output voltage range

Pullup resistor voltage

5.5

1

Output current range, TPSM82821, TPSM82821A ⁽¹⁾

Output current range, TPSM82822, TPSM82822A ⁽¹⁾

Output current range, TPSM82823,TPSM82823A ⁽¹⁾

Junction temperature ⁽¹⁾

0

I_OUT

2

A

0

3

T_J

–40

125

°C

(1) In applications where high power dissipation and high ambient temperatures are present, the maximum output current must be derated

to operate the module within its operating temperature range. See Section 11.2.1.

7.4 Thermal Information

TPSM8282x

THERMAL METRIC⁽¹⁾

μSiL (JEDEC 51-7)

UNIT

TPSM8282xEVM-080

TPSM8282xAEVM-127

10-PINS

92.6

R_θJA

R_θJC(top)

R_θJB

ψ_JT

Junction-to-ambient thermal resistance

Junction-to-case (top) thermal resistance

Junction-to-board thermal resistance

64.3

n/a ⁽²⁾

4.3

°C/W

49.6

27.7

Junction-to-top characterization parameter

Junction-to-board characterization parameter

5.8

ψ_JB

26.9

22.4

(1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application

report.

(2) Not applicable to an EVM.

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7.5 Electrical Characteristics

T_J= –40°C to 125°C and V_IN= 2.4 V to 5.5 V. Typical values are at T_J= 25°C and V_IN= 5 V, unless otherwise noted.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY

I_Q

Quiescent current into the VIN

Shutdown current into the VIN

Quiescent current

EN = High, no load, device not switching

4

0.05

8

10

µA

mA

V

I_SD

I_Q

EN = Low, T_J= –40°C to 85°C

0.5

EN = High, no load, device switching, FPWM devices

Undervoltage lockout threshold

Undervoltage lockout hysteresis

Thermal shutdown threshold

Thermal shutdown hysteresis

V_INfalling

V_INrising

T_Jrising

T_Jfalling

2.1

2.2

160

150

20

2.3

V_UVLO

mV

°C

T_JSD

LOGIC INTERFACE EN

V_IH

High-level input voltage

1.0

V

V_IL

Low-level input voltage

0.4

0.1

I_lkg(EN)

Input leakage current into EN pin

EN = High

0.01

µA

SOFT START, POWER GOOD

t_SS

Soft-start time

Time from EN high to 95% of V_OUTnominal

V_PGrising, V_FBreferenced to V_FBnominal

V_PGfalling, V_FBreferenced to V_FBnominal

V_PGrising, V_FBreferenced to V_FBnominal

I_sink= 1 mA

1.25

96%

ms

94%

90%

98%

94%

107%

112%

0.4

Power-good lower threshold

92%

V_PGTH

103%

108%

105%

110%

Power-good upper threshold

V_PG,OL

Low-level output voltage

V

I_lkg(PG)

Input leakage current into PG pin

V_PG= 5 V

0.01

0.1

µA

OUTPUT

TPSM828211, TPSM828221, PWM mode

TPSM828212, TPSM828222, PWM mode

TPSM828213, TPSM828223, PWM mode

TPSM828214, TPSM828224, PWM mode

PWM mode

1.188

1.782

2.475

3.267

594

1.2

1.8

1.212

1.818

2.525

3.333

606

V_OUT

Output voltage accuracy

V

2.5

3.3

V_FB

Feedback regulation voltage

Feedback input leakage current

Output discharge current

600

0.01

400

mV

µA

I_lkg(FB)

I_DIS

POWER SWITCH

High-side FET on-resistance

V_FB= 0.6 V

0.05

EN = Low, V_SW= 0.4 V

75

mA

26

mΩ

R_DS(on)

Low-side FET on-resistance

TPSM82821, TPSM82821A, 100% mode. V_IN= 2.7 V, T_J

= 25°C

115

90

145

120

95

R_DP

TPSM82822, TPSM82822A, 100% mode. V_IN= 2.7 V, T_J

= 25°C

Dropout resistance

mΩ

TPSM82823, TPSM82823A, 100% mode. V_IN= 2.7 V, T_J

= 25°C

70

I_LIMF

High-side FET switch current limit

TPSM82821A

1.7

1.75

2.7

2.1

2.2

3.3

4.3

–1.6

4

2.4

2.75

3.9

A

TPSM82821

I_LIMF

TPSM82822, TPSM82822A

TPSM82823, TPSM82823A

TPSM82821A/TPSM82822A/TPSM82823A

I_OUT= 1 A

3.7

5.0

I_LIM

f_SW

Low-side FET negative current limit, DC

PWM switching frequency

A

MHz

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7.6 Typical Characteristics

160.0

150.0

140.0

130.0

120.0

110.0

100.0

90.0

130.0

120.0

110.0

100.0

90.0

T_J= -40 èC

T_J= 25 èC

T_J= 85 èC

T_J= 125 èC

T_J= -40 èC

T_J= 25 èC

T_J= 85 èC

T_J= 125 èC

80.0

70.0

60.0

80.0

50.0

70.0

40.0

2.4

2.9

3.4

3.9

Input Voltage (V)

4.4

4.9

5.4

2.4

2.9

3.4

3.9

Input Voltage (V)

4.4

4.9

5.4

D030

Figure 7-1. TPSM82821/TPSM82821A Dropout

Resistance

Figure 7-2. TPSM82822/TPSM82822A Dropout

Resistance

8.0

6.0

4.0

110.0

T_J= -40 °C

T_J= 25 °C

T_J= 85 °C

T_J= 125 °C

100.0

90.0

80.0

70.0

60.0

50.0

40.0

30.0

2.0

T_J= -40 èC

T_J= 25 èC

T_J= 85 èC

T_J= 125 èC

0.0

2.4

2.9

3.4

3.9

4.4

4.9

5.4

Input Voltage (V)

Figure 7-3. TPSM82823/TPSM82823A Dropout

Resistance

2.5

3.0

3.5

4.0

Input Voltage (V)

4.5

5.0

5.5

D031

Figure 7-4. Quiescent Current

0.5

T_J= -40 èC

T_J= 25 èC

T_J= 85 èC

T_J= 125 èC

0.4

0.3

0.2

0.1

0.0

2.5

3.0

3.5

4.0

Input Voltage (V)

4.5

5.0

5.5

D032

Figure 7-5. Shutdown Current

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8 Detailed Description

8.1 Overview

The TPSM8282x synchronous step-down converter power module is based on DCS-Control (Direct Control

with Seamless transition into power save mode). This is an advanced regulation topology that combines the

advantages of hysteretic, voltage, and current mode control.

The DCS-Control topology operates in PWM (pulse width modulation) mode for medium to heavy load conditions

and in PSM (power save mode) at light load currents. In PWM, the converter operates with its nominal

switching frequency of 4 MHz, having a controlled frequency variation over the input voltage range. As the load

current decreases, the converter enters power save mode, reducing the switching frequency and minimizing the

quiescent current of the IC to achieve high efficiency over the entire load current range. DCS-Control supports

both operation modes using a single building block and, therefore, has a seamless transition from PWM to PSM

without effects on the output voltage.

The forced PWM versions of this device, the TPSM8282xA, does not enter PSM (power save mode) at light load

currents and stays in CCM (continuous conduction mode) regardless of the output current in order to minimize

the output ripple.

The TPSM8282x offers excellent DC voltage regulation and load transient regulation, combined with low output

voltage ripple, minimizing interference with RF circuits.

8.2 Functional Block Diagram

PG

Hiccup

V_PGTH(high)

V_FB

+

-

VIN

Counter

PG

deglitch

+

-

V_PGTH(low)

High Side

Current Sense

Bandgap

Undervoltage Lockout

Thermal Shutdown

EN

SW

MOSFET Driver

Control Logic

L⁽¹⁾

GND

Ramp

Direct Control

Comparator

and

VOUT

FB

Compensation

Timer

ton

V_REF

Error Amplifier

TM

DCS - Control

EN

Output Discharge

Logic

FixedV_OUT

(1) Inductance value is 0.47 µH in TPSM82821/TPSM82821A, 0.24 µH in TPSM82822/TPSM82822A and 0.24 µH in TPSM82823/

TPSM82823A.

8.3 Feature Description

8.3.1 PWM and PSM Operation

The TPSM8282x includes a fixed on-time (t_ON) circuitry. This t_ON, in steady-state operation in PWM and PSM

modes, is estimated as:

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V_OUT

t_ON= 250ns ì

V

IN

(1)

In PWM mode, the TPSM8282x operates with pulse width modulation in continuous conduction mode (CCM)

with a t_ONshown in Equation 1 at medium and heavy load currents. A PWM switching frequency of typically 4

MHz is achieved by this t_ONcircuitry.

To maintain high efficiency at light loads, the device enters power save mode seamlessly when the load current

decreases. This happens when the load current becomes smaller than half the ripple current of the inductor. The

output current at which this occurs can be approximated with the following equation:

V_OUT

V

1 −

V × t_ON

IN

I_{OUT(PSM-entry)}

=

×

2

L

(2)

In PSM, the converter operates with a reduced switching frequency and with a minimum quiescent current to

maintain high efficiency. The on time in PSM is also based on the same t_ONcircuitry. The switching frequency in

PSM is estimated as:

2ìI_OUT

f_PSM

=

V

_IN- V_OUT

t_ON²ì

ì

IN

V_OUT

L

(3)

In PSM, the output voltage rises slightly above the nominal output voltage in PWM mode. This effect is reduced

by increasing the output capacitance.

The forced PWM version of this device, the TPSM8282xA, does not enter PSM (power save mode) at light load

currents and stays in CCM (continuous conduction mode) regardless of the output current in order to minimize

the output ripple.

8.3.2 Low Dropout Operation (100% Duty Cycle)

The device offers a low input-to-output voltage differential by entering 100% duty cycle mode. In this mode, the

high-side MOSFET switch is constantly turned on. This is particularly useful in battery-powered applications to

achieve longest operation time by taking full advantage of the whole battery voltage range. The minimum input

voltage to maintain a minimum output voltage is given by:

V_{IN (min)}= V_{OUT (min)}+ I_OUT× R_DP

(4)

where

•

R_DP= Resistance from V_INto V_OUT, which includes the high-side MOSFET on-resistance and DC resistance

of the inductor

V_{OUT (min)}= Minimum output voltage the load can accept

8.3.3 Soft Start-up

After enabling the device, there is a 250-µs delay before switching starts. Then, an internal soft start-up circuitry

ramps up the output voltage which reaches nominal output voltage during the start-up time of 1 ms. This avoids

excessive inrush current and creates a smooth output voltage rise slope. It also prevents excessive voltage

drops of primary cells and rechargeable batteries with high internal impedance.

The device is able to start into a pre-biased output capacitor. It starts with the applied bias voltage and ramps the

output voltage to its nominal value.

8

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8.3.4 Switch Current Limit and Hiccup Short Circuit Protection

The switch current limit prevents the device from high inductor current and from drawing excessive current from

the battery or input voltage rail. Excessive current can occur with a shorted or saturated inductor or a heavy load

or shorted output circuit condition. If the inductor current reaches the threshold of I_LIMF, the high-side MOSFET

is turned off and the low-side MOSFET remains off while the inductor current flows through its body diode and

quickly ramps down.

When this switch current limit is triggered 32 times, the device stops switching. The device then automatically

starts a new start-up after a typical delay time of 128 µs has passed. This is named HICCUP short-circuit

protection. The device repeats this mode until the high load condition disappears.

8.3.5 Undervoltage Lockout

To avoid mis-operation of the device at low input voltages, undervoltage lockout is implemented that shuts down

the device at voltages lower than V_UVLO

.

8.3.6 Thermal Shutdown

The device goes into thermal shutdown and stops the power stage switching when the junction temperature

exceeds T_JSD. When the device temperature falls below the threshold by 20°C, the device returns to normal

operation automatically by switching the power stage again.

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8.4 Device Functional Modes

8.4.1 Enable and Disable

The device is enabled by setting the EN pin to a logic high. Accordingly, shutdown mode is forced if the EN pin

is pulled low with a shutdown current of typically 50 nA. In shutdown mode, the internal power switches and the

entire control circuitry are turned off. An internal switch smoothly discharges the output through the VOUT pin in

shutdown mode. Do not leave the EN pin floating.

The typical threshold value of the EN pin is 0.89 V for rising input signal, and 0.62 V for falling input signal.

8.4.2 Output Discharge

The purpose of the output discharge function is to ensure a defined down-ramp of the output voltage when the

device is disabled and to keep the output voltage close to 0 V. The output discharge is active when the EN pin is

set to a logic low and during thermal shutdown. The discharge is not active in UVLO.

8.4.3 Power Good Output

The device has a power good output. The PG pin goes high impedance once the FB pin voltage is above 96%

and less than 105% of the nominal voltage, and is driven low once the voltage falls below typically 92% or higher

than 110% of the nominal voltage. Table 8-1 shows the typical PG pin logic. The PG pin is an open-drain output

and is specified to sink up to 1 mA. The power good output requires a pullup resistor connecting to any voltage

rail less than 5.5 V. The PG signal can be used for sequencing of multiple rails by connecting to the EN pin of

other converters. If not used, the PG pin can be left floating or connected to GND.

Table 8-1. Power Good Pin Logic

PG LOGIC STATUS

DEVICE STATE

HIGH IMPEDANCE

LOW

0.576 V ≤ V_FB≤ 0.63 V

√

Enabled (EN = High)

V_FB< 0.552 V or V_FB> 0.66 V

√

Shutdown (EN = Low)

UVLO

0.7 V ≤ V_IN< V_UVLO

T_J> T_JSD

Thermal Shutdown

√

Power Supply Removal

√

V_IN< 0.7 V

The PG pin has a 20-μs deglitch time on the falling edge and a 100-μs delay before PG goes high. See Figure

8-1.

V_PGTH

OVP

V_PGTH

V_O

V_PGTH

UVP

V_PGTH

PG delay

de-glitch time

PG

Figure 8-1. Power Good Transient and De-glitch Behavior

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9 Application and Implementation

Note

Information in the following applications sections is not part of the TI component specification,

and TI does not warrant its accuracy or completeness. TI’s customers are responsible for

determining suitability of components for their purposes, as well as validating and testing their design

implementation to confirm system functionality.

9.1 Application Information

The TPSM8282x is a synchronous step-down converter power module. The required power inductor is

integrated inside the TPSM8282x. The inductance value is 0.47 µH for the TPSM82821 and TPS82821A,

0.24 µH for the TPSM82822, TPSM82822A, TPSM82823 and TPSM82823A with a ±20% tolerance. The

TPSM82821/TPSM82821A, TPSM82822/TPSM82822A and TPSM82823/TPSM82823A are pin-to-pin and

BOM-to-BOM compatible with each other.

9.2 Typical Applications

9.2.1 1.8-V Output Application

TPSM82822

V

IN

V

OUT

VIN

1.8V/2A

VOUT

2.4V to 5.5V

C1

C2

EN

2 x 10 µF

C3

120 pF

or

FB

1 x 22 µF

GND

PG

R3

POWER

GOOD

Figure 9-1. Adjustable Output Application Set at 1.8-V Output Voltage

TPSM828222

V_OUT

1.8V/2A

V_IN

2.4V to 5.5V

VIN

VOUT

C1

4.7 µF

C2

1 x 22 µF

EN

FB

R3

100 k

GND

PG

POWER

GOOD

Figure 9-2. Fixed Output Application Set at 1.8-V Output Voltage

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9.2.1.1 Design Requirements

The design guidelines provide a component selection to operate the device within the recommended operating

conditions.

Table 9-1 lists the components used for Figure 9-1. Table 9-2 lists the components used for Figure 9-2.

Table 9-1. List of Components

REFERENCE

DESCRIPTION

MANUFACTURER

Taiyo Yuden

muRata

C1

Ceramic capacitor, 4.7 µF, 6.3 V, X7R, size (0603), JMK107BB7475MA

Ceramic capacitor, 2 × 10 µF, 10 V, X7R, size (0603), GRM188Z71A106MA73D

Ceramic capacitor, 1 × 22 µF, 6.3 V, X6S, size (0603), JMK107BC6226MA-T

C2

Taiyo Yuden

C3

R1

R2

R3

Ceramic capacitor, 120 pF, 50 V, size (0603), 06035A121JAT2A

Resistor, 200 kΩ, 1% accuracy

AVX

std

Resistor, 100 kΩ, 1% accuracy

std

Resistor, 100 kΩ, 1% accuracy

std

Table 9-2. List of Components

REFERENCE

DESCRIPTION

MANUFACTURER

Taiyo Yuden

std

C1

C2

R3

Ceramic capacitor, 4.7 µF, 6.3 V, X7R, size (0603), JMK107BB7475MA

Ceramic capacitor, 22 µF, 4 V, X5R, size (0402), AMK105EBJ226MV-F

Resistor, 100 kΩ, 1% accuracy

9.2.1.2 Detailed Design Procedure

9.2.1.2.1 Setting the Output Voltage

Choose resistors R1 and R2 to set the output voltage within a range of 0.6 V to 4 V according to Equation 5.

To keep the feedback (FB) net robust from noise, set R2 equal to or lower than 100 kΩ to have at least 6 µA of

current in the voltage divider. Lower values of FB resistors achieve better noise immunity, and lower light load

efficiency, as explained in the Design Considerations for a Resistive Feedback Divider in a DC/DC Converter

Technical Brief.

≈

∆

«

’

V_OUT

V_FB

V

OUT

≈

’

R1= R2ì

-1 = R2ì

-1

÷

∆

«

0.6V

◊

(5)

For devices with a fixed output voltage, the FB pin must be connected to VOUT. R1, R2 and C3 are not needed.

The fixed output voltage devices have an internal feed forward capacitor.

9.2.1.2.2 Feedforward capacitor

A feedforward capacitor (C3) is required in parallel with R1. Equation 6 calculates the C3 value. For the

recommended 100-kΩ value for R2, a 120-pF feedforward capacitor is used.

12ms

C3 =

R2

(6)

9.2.1.2.3 Input and Output Capacitor Selection

For the best output and input voltage filtering, ceramic capacitors are required. The input capacitor minimizes

input voltage ripple, suppresses input voltage spikes, and provides a stable system rail for the device. A 4.7-µF

or larger input capacitor is required. The output capacitor value can range from 10 µF up to 47 µF. The

recommended typical output capacitor value is 2 × 10-µF or 1 × 22-µF with an X5R or X7R dielectric. Values

over 47 µF can degrade the loop stability of the converter. A feedforward capacitor is required for best transient

performance.

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Ceramic capacitors have a DC-Bias effect, which has a strong influence on the final effective capacitance.

Choose the right capacitor carefully in combination with considering its package size and voltage rating. Ensure

that the effective input capacitance is at least 3 µF and the effective output capacitance is at least 5 µF.

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9.2.1.3 Application Performance Curves

T_A= 25°C, V_IN= 5 V, V_OUT= 1.8 V, BOM = Table 9-1 unless otherwise noted.

9.2.1.3.1 TPSM82821 Performance Curves

V_IN= 5 V

T_A= 25°C

TPSM82821

V_IN= 5 V

T_A= 85°C

TPSM82821

Figure 9-3. Efficiency

Figure 9-4. Efficiency

V_IN= 4.2 V

T_A= 25°C

V_IN= 4.2 V

T_A= 85°C

TPSM82821

Figure 9-5. Efficiency

Figure 9-6. Efficiency

V_IN= 3.3 V

T_A= 25°C

V_IN= 3.3 V

T_A= 85°C

TPSM82821

Figure 9-7. Efficiency

Figure 9-8. Efficiency

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V_IN= 2.4 V

T_A= 25°C

TPSM82821

V_IN= 2.4 V

T_A= 85°C

TPSM82821

Figure 9-9. Efficiency

Figure 9-10. Efficiency

1.5

1

0.5

V_IN= 5 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

0

45

55

65

75

85

95

105

115

125

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 0.6 V

TPSM82821

R_θJA= 64.3°C/W

V_OUT= 1.2 V

TPSM82821

R_θJA= 64.3°C/W

Figure 9-11. Safe Operating Area

Figure 9-12. Safe Operating Area

1.5

1

0.5

V_IN= 5 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

V_IN= 5 V

V_IN= 3.3 V

0

45

0

45

55

65

75

85

95

105

115

125

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82821

R_θJA= 64.3°C/W

V_OUT= 2.5 V

TPSM82821

R_θJA= 64.3°C/W

Figure 9-13. Safe Operating Area

Figure 9-14. Safe Operating Area

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1.5

0.612

0.609

0.606

0.603

1

0.6

0.597

0.594

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

0.591

0.588

0.5

100m

1m

10m

Load (A)

100m

1

D037

V_OUT= 0.6 V

TPSM82821

V_IN= 5 V

55

0

45

65

75

85

95

105

115

125

Figure 9-16. Load Regulation

Ambient Temperature (°C)

V_OUT= 3.3 V

TPSM82821

R_θJA= 64.3°C/W

Figure 9-15. Safe Operating Area

1.212

1.209

1.206

1.203

1.2

1.81

1.806

1.802

1.798

1.794

1.79

1.197

1.194

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

1.191

1.188

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

100m

1m

10m

Load (A)

100m

1

D037

100m

1m

10m

Load (A)

100m

1

V_OUT= 1.2 V

TPSM82821

D037

Figure 9-17. Load Regulation

V_OUT= 1.8 V

TPSM82821

Figure 9-18. Load Regulation

3.344

3.333

3.322

3.311

3.3

2.504

2.503

2.502

2.501

2.5

3.289

3.278

3.267

3.256

3.245

2.499

2.498

2.497

2.496

V_IN= 5 V

V_IN= 4.2 V

V_IN= 3.3 V

V_IN= 4.2V

V_IN= 5.0 V

100m

1m

10m

Load (A)

100m

1

100m

1m

10m

Load (A)

100m

1

D037

D038

V_OUT= 3.3 V

TPSM82821

V_OUT= 2.5 V

TPSM82821

Figure 9-20. Load Regulation

Figure 9-19. Load Regulation

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

0.611

1.205

I_OUT= 0A

I_OUT= 1A

I_OUT= 0A

I_OUT= 1A

0.609

0.607

0.605

0.603

0.601

0.599

0.597

1.203

1.201

1.199

1.197

1.195

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

D041

V_OUT= 0.6 V

TPSM82821

V_OUT= 1.2 V

TPSM82821

Figure 9-21. Line Regulation

Figure 9-22. Line Regulation

3.35

3.33

3.31

3.29

3.27

3.25

3.23

3.21

3.19

3.17

3.15

1.810

1.808

1.806

1.804

1.802

1.800

1.798

1.796

1.794

I_OUT= 0A

I_OUT= 1A

I_OUT= 0A

I_OUT= 1A

3.3

3.8

4.3

Vin (V)

4.8

5.3

D041

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

D041

V_OUT= 3.3 V

TPSM82821

V_OUT= 1.8 V

TPSM82821

Figure 9-24. Line Regulation

Figure 9-23. Line Regulation

V_OUT

20mV/DIV

V_OUT

20mV/DIV

I_OUT

0.25A/DIV

0.5A/DIV

Time - 10ms/DIV

I_OUT= 0 A to 1 A

Slew Rate = 2 A/µs

TPSM82821

I_OUT= 0.5 A to 1 A

Slew Rate = 2 A/µs

TPSM82821

Figure 9-25. Load Transient

Figure 9-26. Load Transient

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Horizontal - QPK

Vertical - QPK

CISPR 11 Group 1 Class B 3m Limit

R_LOAD= 2.2 Ω, V_IN= 5.5 V (battery supply), V_OUT= 1.8 V,

tested on TPSM82821EVM-080

Figure 9-27. TPSM82821 Radiated Emissions

TPSM82821

Figure 9-28. Power Supply Rejection Ratio (PSRR)

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9.2.1.3.2 TPSM82821A Performance Curves

100

95

90

85

80

75

70

65

60

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

55

50

45

40

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

Load (A)

D005

D033

D005

D033

V_IN= 5 V

T_A= 25°C

TPSM82821A

V_IN= 5 V

T_A= 85°C

TPSM82821A

Figure 9-29. Efficiency

Figure 9-30. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

Load (A)

D005

D033

D005

D033

V_IN= 4.2 V

T_A= 25°C

TPSM82821A

V_IN= 4.2 V

T_A= 85°C

TPSM82821A

Figure 9-31. Efficiency

Figure 9-32. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

Load (A)

D005

D033

D005

D033

V_IN= 3.3 V

T_A= 25°C

TPSM82821A

V_IN= 3.3 V

T_A= 85°C

TPSM82821A

Figure 9-33. Efficiency

Figure 9-34. Efficiency

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100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

Load (A)

D005

D033

D005

D033

V_IN= 2.4 V

T_A= 25°C

TPSM82821A

V_IN= 2.4 V

T_A= 85°C

TPSM82821A

Figure 9-35. Efficiency

Figure 9-36. Efficiency

1.5

1

1.5

1

0.5

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 0.6 V

TPSM82821A

R_θJA= 64.3°C/W

V_OUT= 1.2 V

TPSM82821A

R_θJA= 64.3°C/W

Figure 9-37. Safe Operating Area

Figure 9-38. Safe Operating Area

1.5

1

0.5

0

1

0.5

0

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 4.2 V

V_IN= 5 V

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82821A

R_θJA= 64.3°C/W

V_OUT= 2.5 V

TPSM82821A

R_θJA= 64.3°C/W

Figure 9-39. Safe Operating Area

Figure 9-40. Safe Operating Area

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1.5

1

0.606

0.6

0.5

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

55 65

V_IN= 5 V

0

0.594

45

75

85

95

105

115

125

100µ

1m

10m

Load (A)

100m

1

Ambient Temperature (°C)

D037

V_OUT= 3.3 V

TPSM82821A

R_θJA= 64.3°C/W

V_OUT= 0.6 V

TPSM82821A

Figure 9-41. Safe Operating Area

Figure 9-42. Load Regulation

1.212

1.818

1.812

1.806

1.8

1.206

1.2

1.794

1.788

1.782

1.194

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

1.188

100µ

1m

10m

Load (A)

100m

1

100µ

1m

10m

Load (A)

100m

1

D037

V_OUT= 1.2 V

TPSM82821A

V_OUT= 1.8 V

TPSM82821A

Figure 9-43. Load Regulation

Figure 9-44. Load Regulation

2.529

2.523

2.517

2.511

2.505

2.499

2.493

2.487

2.481

2.475

3.33

3.324

3.318

3.312

3.306

3.3

3.294

3.288

3.282

3.276

3.27

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 4.2 V

V_IN= 5 V

100µ

1m

10m

Load (A)

100m

1

100µ

1m

10m

Load (A)

100m

1

D037

V_OUT= 2.5 V

TPSM82821A

V_OUT= 3.3 V

TPSM82821A

Figure 9-45. Load Regulation

Figure 9-46. Load Regulation

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V_OUT

10mV/DIV

AC

V_SW

2V/DIV

I_OUT

0.25A/DIV

Time - 200ns/DIV

Time - 20µs/DIV

D045

D047

I_OUT= 1 A

TPSM82821A

I_OUT= 0 mA to 1 A

TPSM82821A

Figure 9-47. Output Ripple in PWM Mode

Figure 9-48. Load Sweep

V_EN

5V/DIV

V_PG

2V/DIV

V_OUT

20mV/DIV

V_OUT

0.4V/DIV

I_OUT

0.5A/DIV

Time - 10µs/DIV

Time - 500µs/DIV

D048

D050

I_OUT= 0 A to 1 A

Slew Rate = 2 A/µs

TPSM82821A

I_OUT= no load

TPSM82821A

Figure 9-49. Load Transient

Figure 9-50. Start-up / Shutdown without Load

V_EN

5V/DIV

V_PG

2V/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

V_OUT

0.4V/DIV

I_load

1A/DIV

Time - 500µs/DIV

D052

D051

I_OUT= 1 A

TPSM82821A

Figure 9-51. Start-up / Shutdown with Resistive

Load

Figure 9-52. Short Circuit, HICCUP Protection

Entry / Exit

22

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

9.2.1.3.3 TPSM82822 Performance Curves

V_IN= 5 V

T_A= 25°C

TPSM82822

V_IN= 5 V

T_A= 85°C

TPSM82822

Figure 9-53. Efficiency

Figure 9-54. Efficiency

V_IN= 4.2 V

T_A= 25°C

V_IN= 4.2 V

T_A= 85°C

Figure 9-55. Efficiency

Figure 9-56. Efficiency

V_IN= 3.3 V

T_A= 25°C

V_IN= 3.3 V

T_A= 85°C

Figure 9-57. Efficiency

Figure 9-58. Efficiency

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V_IN= 2.4 V

T_A= 25°C

TPSM82822

V_IN= 2.4 V

T_A= 85°C

TPSM82822

Figure 9-59. Efficiency

Figure 9-60. Efficiency

2.5

2

1.5

1

0.5

V_IN= 5 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

0

45

0

45

55

65

75

85

95

105

115

125

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 0.6 V

TPSM82822

R_θJA= 64.3°C/W

V_OUT= 1.2 V

TPSM82822

R_θJA= 64.3°C/W

Figure 9-61. Safe Operating Area

Figure 9-62. Safe Operating Area

2.5

2

1.5

1

0.5

V_IN= 5 V

V_IN= 3.3 V

V_IN= 2.7 V

V_IN= 2.4 V

V_IN= 5 V

V_IN= 3.3 V

0

45

0

45

55

65

75

85

95

105

115

125

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82822

R_θJA= 64.3°C/W

V_OUT= 2.5 V

TPSM82822

R_θJA= 64.3°C/W

Figure 9-63. Safe Operating Area

Figure 9-64. Safe Operating Area

24

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

2.5

0.612

0.609

0.606

0.603

0.6

2

1.5

1

0.597

0.594

V_IN= 2.5 V

V_IN= 3.3 V

0.5

0.591

0.588

V_IN= 4.2 V

V_IN= 5.0 V

V_IN= 5 V

55

0

100m

1m

10m

Load (A)

100m

1

45

65

75

85

95

105

115

125

Ambient Temperature (°C)

D037

D039

D040

V_OUT= 3.3 V

TPSM82822

R_θJA= 64.3°C/W

V_OUT= 0.6 V

TPSM82822

Figure 9-65. Safe Operating Area

Figure 9-66. Load Regulation

1.212

1.209

1.206

1.203

1.2

1.822

1.816

1.81

1.804

1.798

1.792

1.197

1.194

1.191

1.188

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

100m

1m

10m

Load (A)

100m

1

100m

1m

10m

Load (A)

100m

D038

V_OUT= 1.2 V

TPSM82822

V_OUT= 1.8 V

TPSM82822

Figure 9-67. Load Regulation

Figure 9-68. Load Regulation

2.504

2.503

2.502

2.501

2.5

3.333

3.322

3.311

3.3

3.289

3.278

3.267

3.256

3.245

2.499

2.498

2.497

2.496

V_IN= 5 V

V_IN= 4.2 V

V_IN= 3.3 V

V_IN= 4.2V

V_IN= 5.0V

100m

1m

10m

Load (A)

100m

1

D04328

100m

1m

10m

Load (A)

100m

V_OUT= 2.5 V

TPSM82822

V_OUT= 3.3 V

TPSM82822

Figure 9-69. Load Regulation

Figure 9-70. Load Regulation

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0.611

0.609

0.607

0.605

0.603

0.601

0.599

0.597

1.205

1.204

1.203

1.202

1.201

1.200

1.199

1.198

1.197

1.196

1.195

I_OUT= 0A

I_OUT= 1A

I_OUT= 2A

I_OUT= 0A

I_OUT= 1A

I_OUT= 2A

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

D041

D042

V_OUT= 0.6 V

TPSM82822

V_OUT= 1.2 V

TPSM82822

Figure 9-71. Line Regulation

Figure 9-72. Line Regulation

2.505

2.504

2.503

2.502

2.501

2.500

2.499

2.498

2.497

2.496

2.495

1.815

1.814

1.813

1.812

1.811

1.810

1.809

1.808

1.807

1.806

1.805

1.804

1.803

1.802

1.801

1.800

I_OUT= 0A

I_OUT= 1A

I_OUT= 2A

I_OUT= 0A

I_OUT= 1A

I_OUT= 2A

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

D042

2.4

2.93

3.4

3.9

Vin (V)

4.4

4.9

5.4

V_OUT= 2.5 V

TPSM82822

D043

V_OUT= 1.8 V

TPSM82822

Figure 9-74. Line Regulation

Figure 9-73. Line Regulation

3.35

3.33

3.31

3.29

3.27

3.25

3.23

3.21

3.19

3.17

3.15

V_IN

10mV/DIV

AC

V_OUT

10mV/DIV

AC

V_SW

2V/DIV

I_OUT= 0A

I_OUT= 1A

I_OUT= 2A

Time - 200ns/DIV

3.3

3.8

4.3

Vin (V)

4.8

5.3

D045

D044

I_OUT= 2 A

TPSM82822

V_OUT= 3.3 V

TPSM82822

Figure 9-76. Input and Output Ripple in PWM Mode

Figure 9-75. Line Regulation

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

V_IN

10mV/DIV

AC

V_OUT

20mV/DIV

V_OUT

10mV/DIV

AC

I_OUT

0.5A/DIV

V_SW

2V/DIV

Time - 20ms/DIV

D047

Time - 2ms/DIV

I_OUT= 25 mA to 2 A

TPSM82822

D046

I_OUT= 25 mA

TPSM82822

Figure 9-78. Load Sweep

Figure 9-77. Input and Output Ripple in PSM Mode

V_OUT

20mV/DIV

I_OUT

0.5A/DIV

Time - 10ms/DIV

D048

D049

I_OUT= 0 A to 2 A

Slew Rate = 2 A/µs

TPSM82822

I_OUT= 0.5 A to 2 A

Slew Rate = 2 A/µs

TPSM82822

Figure 9-79. Load Transient

Figure 9-80. Load Transient

V_EN

5V/DIV

V_PG

2V/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

V_OUT

0.4V/DIV

Time - 500ms/DIV

D050

D051

I_OUT= no load

TPSM82822

I_OUT= 2 A

TPSM82822

Figure 9-81. Start-up / Shutdown without Load

Figure 9-82. Start-up / Shutdown with Resistive

Load

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V_PG

2V/DIV

V_OUT

0.4V/DIV

I_load

2A/DIV

Horizontal - QPK

Vertical - QPK

CISPR 11 Group 1 Class B 3m Limit

Time - 500ms/DIV

D052

R_LOAD= 1 Ω, V_IN= 5.5 V (battery supply), V_OUT= 1.8 V, tested

on TPSM82822EVM-080

TPSM82822

Figure 9-83. Short Circuit, HICCUP Protection

Entry / Exit

Figure 9-84. TPSM82822 Radiated Emissions

80.0

70.0

60.0

50.0

40.0

30.0

I_OUT= 0.5 A

I_OUT= 1 A

I_OUT= 2 A

20.0

10.0

1.0E+2

1.0E+3

1.0E+4

Frequency (Hz)

1.0E+5

1.0E+6

D053

TPSM82822

Figure 9-85. Power Supply Rejection Ratio (PSRR)

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

9.2.1.3.4 TPSM82822A Performance Curves

100

95

90

85

80

75

70

65

60

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

55

50

45

40

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

Load (A)

D005

D033

D005

D033

V_IN= 5 V

T_A= 25°C

TPSM82822A

V_IN= 5 V

T_A= 85°C

TPSM82822A

Figure 9-86. Efficiency

Figure 9-87. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

Load (A)

D005

D033

D005

D033

V_IN= 4.2 V

T_A= 25°C

TPSM82822A

V_IN= 4.2 V

T_A= 85°C

TPSM82822A

Figure 9-88. Efficiency

Figure 9-89. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

Load (A)

D005

D033

D005

D033

V_IN= 3.3 V

T_A= 25°C

TPSM82822A

V_IN= 3.3 V

T_A= 85°C

TPSM82822A

Figure 9-90. Efficiency

Figure 9-91. Efficiency

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100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

1

0

0.2 0.4 0.6 0.8

1

1.2 1.4 1.6 1.8

2

Load (A)

D005

D033

D005

D033

V_IN= 2.4 V

T_A= 25°C

TPSM82822A

V_IN= 2.4 V

T_A= 85°C

TPSM82822A

Figure 9-92. Efficiency

Figure 9-93. Efficiency

3

2.5

2

3

2.5

2

1.5

1

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

0.5

0

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 0.6 V

TPSM82822A

R_θJA= 64.3°C/W

V_OUT= 1.2 V

TPSM82822A

R_θJA= 64.3°C/W

Figure 9-94. Safe Operating Area

Figure 9-95. Safe Operating Area

3

2.5

2

1.5

1

2

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

0.5

0

V_IN= 4.2 V

V_IN= 5 V

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82822A

R_θJA= 64.3°C/W

V_OUT= 2.5 V

TPSM82822A

R_θJA= 64.3°C/W

Figure 9-96. Safe Operating Area

Figure 9-97. Safe Operating Area

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

3

2.5

2

0.606

1.5

1

0.6

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

0.5

0

V_IN= 5 V

55 65

V_IN= 5 V

0.594

45

75

85

95

105

115

125

100µ

1m

10m

Load (A)

100m

1

Ambient Temperature (°C)

D037

V_OUT= 3.3 V

TPSM82822A

R_θJA= 64.3°C/W

V_OUT= 0.6 V

TPSM82822A

Figure 9-98. Safe Operating Area

Figure 9-99. Load Regulation

1.212

3

2.5

2

1.206

1.2

1.5

1

1.194

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

1.188

100µ

1m

10m

Load (A)

100m

1

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

D037

V_OUT= 1.8 V

TPSM82822A

V_OUT= 1.2 V

TPSM82822A

Figure 9-101. Load Regulation

Figure 9-100. Load Regulation

2.529

2.523

2.517

2.511

2.505

2.499

2.493

2.487

2.481

2.475

3.33

3.324

3.318

3.312

3.306

3.3

3.294

3.288

3.282

3.276

3.27

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

100µ

1m

10m

Load (A)

100m

1

V_IN= 4.2 V

V_IN= 5 V

D037

V_OUT= 2.5 V

TPSM82822A

100µ

1m

10m

Load (A)

100m

1

D037

Figure 9-102. Load Regulation

V_OUT= 3.3 V

TPSM82822A

Figure 9-103. Load Regulation

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V_OUT

10mV/DIV

AC

V_SW

2V/DIV

I_OUT

0.5A/DIV

Time - 200ns/DIV

Time - 20µs/DIV

D045

D047

I_OUT= 2 A

TPSM82822A

I_OUT= 0 mA to 2 A

TPSM82822A

Figure 9-104. Output Ripple in PWM Mode

Figure 9-105. Load Sweep

V_EN

5V/DIV

V_PG

2V/DIV

V_OUT

20mV/DIV

I_OUT

0.5A/DIV

V_OUT

0.4V/DIV

Time - 10µs/DIV

Time - 500µs/DIV

D048

D050

I_OUT= 0 A to 2 A

Slew Rate = 2 A/µs

TPSM82822A

I_OUT= no load

TPSM82822A

Figure 9-106. Load Transient

Figure 9-107. Start-up / Shutdown without Load

V_PG

2V/DIV

V_EN

5V/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

V_OUT

0.4V/DIV

I_load

2A/DIV

Time - 500µs/DIV

D051

D052

I_OUT= 2 A

TPSM82822A

Figure 9-108. Start-up / Shutdown with Resistive

Load

Figure 9-109. Short Circuit, HICCUP Protection

Entry / Exit

32

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

9.2.1.3.5 TPSM82823 Performance Curves

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D033

V_IN= 5 V

T_A= 25°C

TPSM82823

V_IN= 5 V

T_A= 85°C

TPSM82823

Figure 9-110. Efficiency

Figure 9-111. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D033

V_IN= 4.2 V

T_A= 25°C

TPSM82823

V_IN= 4.2 V

T_A= 85°C

TPSM82823

Figure 9-112. Efficiency

Figure 9-113. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D033

V_IN= 3.3 V

T_A= 25°C

TPSM82823

V_IN= 3.3 V

T_A= 85°C

TPSM82823

Figure 9-114. Efficiency

Figure 9-115. Efficiency

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

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100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D033

V_IN= 2.4 V

T_A= 25°C

TPSM82823

V_IN= 2.4 V

T_A= 85°C

TPSM82823

Figure 9-116. Efficiency

Figure 9-117. Efficiency

3.5

3

2.5

2

3

2.5

2

1.5

1

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

0.5

0

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 0.6 V

TPSM82823

R_θJA= 64.3°C/W

V_OUT= 1.2 V

TPSM82823

R_θJA= 64.3°C/W

Figure 9-118. Safe Operating Area

Figure 9-119. Safe Operating Area

3.5

3

2.5

2

2.5

2

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 3.3 V

V_IN= 4.2 V

0.5

V_IN= 5 V

0

45

0

45

55 65

75

85

95

105

115

125

55 65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82823

R_θJA= 64.3°C/W

V_OUT= 2.5 V

TPSM82823

R_θJA= 64.3°C/W

Figure 9-120. Safe Operating Area

Figure 9-121. Safe Operating Area

34

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

3.5

3

0.612

0.606

0.6

2.5

2

1.5

1

0.5

0

0.594

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

V_IN= 5 V

55 65

45

75

85

95

105

115

125

Ambient Temperature (°C)

0.588

V_OUT= 3.3 V

TPSM82823

R_θJA= 64.3°C/W

100µ

1m

10m

Load (A)

100m

1

3

D037

Figure 9-122. Safe Operating Area

V_OUT= 0.6 V

TPSM82823

Figure 9-123. Load Regulation

1.224

1.212

1.2

1.836

1.818

1.8

1.188

1.782

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

V_IN= 2.5 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

1.176

1.764

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D037

V_OUT= 1.2 V

TPSM82823

V_OUT= 1.8 V

TPSM82823

Figure 9-124. Load Regulation

Figure 9-125. Load Regulation

2.525

2.5

3.33

3.3

2.475

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 4.2 V

V_IN= 5 V

2.45

3.27

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D037

V_OUT= 2.5 V

TPSM82823

V_OUT= 3.3 V

TPSM82823

Figure 9-126. Load Regulation

Figure 9-127. Load Regulation

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V_OUT

10mV/DIV

V_OUT

10mV/DIV

AC

V_SW

2V/DIV

V_SW

2V/DIV

Time - 200ns/DIV

D045

I_OUT= 3 A

TPSM82823

Time - 2µs/DIV

Figure 9-128. Output Ripple in PWM Mode

D045

I_OUT= 25 mA

TPSM82823

Figure 9-129. Output Ripple in PSM Mode

V_OUT

20mV/DIV

V_OUT

50mV/DIV

I_OUT

1A/DIV

I_OUT

1A/DIV

Time - 20µs/DIV

Time - 10µs/DIV

D047

D048

I_OUT= 25 mA to 3 A

TPSM82823

I_OUT= 0 A to 3 A

Slew Rate = 2 A/µs

TPSM82823

Figure 9-130. Load Sweep

Figure 9-131. Load Transient

V_EN

5V/DIV

V_OUT

50mV/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

I_OUT

1A/DIV

Time - 10µs/DIV

Time - 500µs/DIV

D048

D050

I_OUT= 0.5 A to 3 A

Slew Rate = 2 A/µs

TPSM82823

I_OUT= no load

TPSM82823

Figure 9-132. Load Transient

Figure 9-133. Start-up / Shutdown without Load

36

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

V_PG

2V/DIV

V_EN

5V/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

V_OUT

I_load

0.4V/DIV

2A/DIV

Time - 500µs/DIV

D051

D052

I_OUT= 3 A

TPSM82823

Figure 9-134. Start-up / Shutdown with Resistive

Load

Figure 9-135. Short Circuit, HICCUP Protection

Entry / Exit

Horizontal - QPK

Vertical - QPK

CISPR 11 Group 1 Class B 3m Limit

R_LOAD= 0.68 Ω, V_IN= 5.5 V (battery supply), V_OUT= 1.8 V, tested on TPSM82823EVM-080

Figure 9-136. TPSM82823 Radiated Emissions

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

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9.2.1.3.6 TPSM82823A Performance Curves

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

Load (A)

D005

D033

D005

D033

V_IN= 5 V

T_A= 25°C

TPSM82823A

V_IN= 5 V

T_A= 85°C

TPSM82823A

Figure 9-137. Efficiency

Figure 9-138. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 3.3V

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

Load (A)

D005

D033

D005

D033

V_IN= 4.2 V

T_A= 25°C

TPSM82823A

V_IN= 4.2 V

T_A= 85°C

TPSM82823A

Figure 9-139. Efficiency

Figure 9-140. Efficiency

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

50

45

40

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 2.5V

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

Load (A)

D005

D033

D005

D033

V_IN= 3.3 V

T_A= 25°C

TPSM82823A

V_IN= 3.3 V

T_A= 85°C

TPSM82823A

Figure 9-141. Efficiency

Figure 9-142. Efficiency

38

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

100

95

90

85

80

75

70

65

60

55

50

45

40

100

95

90

85

80

75

70

65

60

55

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

V_OUT= 0.6V

V_OUT= 1.2V

V_OUT= 1.8V

50

45

40

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

0

0.3 0.6 0.9 1.2 1.5 1.8 2.1 2.4 2.7

3

Load (A)

D005

D033

D005

D033

V_IN= 2.4 V

T_A= 25°C

TPSM82823A

V_IN= 2.4 V

T_A= 85°C

TPSM82823A

Figure 9-143. Efficiency

Figure 9-144. Efficiency

4

3.5

3

4

3.5

3

2.5

2

2.5

2

1.5

1

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

0.5

0

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

D037

V_OUT= 1.2 V

TPSM82823A

R_θJA= 64.3 °C/W

V_OUT= 0.6 V

TPSM82823A

R_θJA= 64.3 °C/W

Figure 9-146. Safe Operating Area

Figure 9-145. Safe Operating Area

4

3.5

3

4

3.5

3

2.5

2

2.5

2

1.5

1

0.5

0

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

V_IN= 4.2 V

V_IN= 5 V

45

55

65

75

85

95

105

115

125

45

55

65

75

85

95

105

115

125

Ambient Temperature (°C)

V_OUT= 1.8 V

TPSM82823A

R_θJA= 64.3 °C/W

V_OUT= 2.5 V

TPSM82823A

R_θJA= 64.3 °C/W

Figure 9-147. Safe Operating Area

Figure 9-148. Safe Operating Area

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

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4

3.5

3

0.606

2.5

2

0.6

1.5

1

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

0.5

0

V_IN= 5 V

55 65

0.594

45

75

85

95

105

115

125

100µ

1m

10m

Load (A)

100m

1

3

Ambient Temperature (°C)

D037

V_OUT= 3.3 V

TPSM82823A

R_θJA= 64.3 °C/W

V_OUT= 0.6 V

TPSM82823A

Figure 9-149. Safe Operating Area

Figure 9-150. Load Regulation

1.224

1.818

1.8

1.212

1.2

1.782

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

V_IN= 2.4 V

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5.0 V

1.188

1.764

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D037

V_OUT= 1.2 V

TPSM82823A

V_OUT= 1.8 V

TPSM82823A

Figure 9-151. Load Regulation

Figure 9-152. Load Regulation

2.529

2.523

2.517

2.511

2.505

2.499

2.493

2.487

2.481

2.475

3.33

3.324

3.318

3.312

3.306

3.3

3.294

3.288

3.282

3.276

3.27

V_IN= 3.3 V

V_IN= 4.2 V

V_IN= 5 V

V_IN= 4.2 V

V_IN= 5 V

100µ

1m

10m

Load (A)

100m

1

3

100µ

1m

10m

Load (A)

100m

1

3

D037

V_OUT= 2.5 V

TPSM82823A

V_OUT= 3.3 V

TPSM82823A

Figure 9-153. Load Regulation

Figure 9-154. Load Regulation

40

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

V_OUT

10mV/DIV

V_OUT

10mV/DIV

AC

V_SW

2V/DIV

I_OUT

1A/DIV

Time - 200ns/DIV

Time - 20µs/DIV

D045

D047

I_OUT= 3 A

TPSM82823A

I_OUT= 0 mA to 3 A

TPSM82823A

Figure 9-155. Output Ripple in PWM Mode

Figure 9-156. Load Sweep

V_EN

5V/DIV

V_PG

2V/DIV

V_OUT

20mV/DIV

I_OUT

1A/DIV

V_OUT

0.4V/DIV

Time - 10µs/DIV

Time - 500µs/DIV

D048

D050

I_OUT= 0 A to 3 A

Slew Rate = 2 A/µs

TPSM82823A

I_OUT= no load

TPSM82823A

Figure 9-157. Load Transient

Figure 9-158. Start-up / Shutdown without Load

V_EN

5V/DIV

V_PG

2V/DIV

V_PG

2V/DIV

V_OUT

0.4V/DIV

V_OUT

0.4V/DIV

I_load

2A/DIV

Time - 500µs/DIV

D052

D051

I_OUT= 3 A

TPSM82823A

Figure 9-159. Start-up / Shutdown with Resistive

Load

Figure 9-160. Short Circuit, HICCUP Protection

Entry / Exit

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10 Power Supply Recommendations

The devices are designed to operate from an input supply voltage range between 2.4 V and 5.5 V. The average

input current of the TPSM8282x/TPSM8282xA is calculated as:

V_OUT´I_OUT

1

I_IN

=

´

h

V

IN

(7)

Ensure that the power supply has a sufficient current rating for the application.

11 Layout

11.1 Layout Guidelines

A proper layout is critical for the operation of any switched mode power supply, especially at high switching

frequencies. Therefore, the PCB layout of the TPSM8282x/TPSM8282xA demands careful attention to ensure

best performance. A poor layout can lead to issues like bad line and load regulation, instability, increased EMI

radiation, and noise sensitivity. Refer to the Five Steps to a Great PCB Layout for a Step-Down Converter

Technical Brief for a detailed discussion of general best practices. Specific recommendations for the device are

listed below.

•

The input capacitor should be placed as close as possible to the VIN and GND pins of the device. This is the

most critical component placement. Route the input capacitor directly to the VIN and GND pins avoiding vias.

Place the output capacitor ground close to the VOUT and GND pins and route it directly avoiding vias.

Place the FB resistors, R1 and R2, and the feedforward capacitor C_FFclose to the FB pin to minimize noise

pickup.

•

The recommended layout is implemented on the EVM and shown in its TPSM8282xEVM-080 Evaluation

Module User's Guide

The recommended land pattern for the TPSM8282x/TPSM8282xA is shown at the end of this data sheet. For

best manufacturing results, it is important to create the pads as solder mask defined (SMD), when some pins

(such as VIN, VOUT, and GND) are connected to large copper planes. Using SMD pads keeps each pad the

same size and avoids solder pulling the device during reflow.

11.2 Layout Example

GND

VIN

12mm²

solution size

VOUT

Figure 11-1. TPSM8282xx PCB Layout for the Fixed Output Voltage Devices (BOM from Table 9-2)

23mm²

solution size

GND

VIN

VOUT

Figure 11-2. TPSM8282x/TPSM8282xA PCB Layout for the Adjustable Devices (BOM from Table 9-1 with 1

x 22-uF for C2)

42

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SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

11.2.1 Thermal Consideration

The TPSM8282x/TPSM8282xA module temperature must be kept less than the maximum rating of 125°C. The

following are three basic approaches for enhancing thermal performance:

•

Improve the power dissipation capability of the PCB design.

Improve the thermal coupling of the component to the PCB.

Introduce airflow into the system.

To estimate the approximate module temperature of the TPSM8282x/TPSM8282xA, apply the typical efficiency

stated in this data sheet to the desired application condition to compute the power dissipation of the module.

Then, calculate the module temperature rise by multiplying the power dissipation by its thermal resistance. Using

this method to compute the maximum device temperature, the Safe Operating Area (SOA) graphs demonstrate

the required derating in maximum output current at high ambient temperatures. For more details on how to use

the thermal parameters in real applications, see the application notes: Thermal Characteristics of Linear and

Logic Packages Using JEDEC PCB Designs and Semiconductor and IC Package Thermal Metrics.

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43

Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

www.ti.com

12 Device and Documentation Support

12.1 Device Support

12.1.1 Third-Party Products Disclaimer

TI'S PUBLICATION OF INFORMATION REGARDING THIRD-PARTY PRODUCTS OR SERVICES DOES NOT

CONSTITUTE AN ENDORSEMENT REGARDING THE SUITABILITY OF SUCH PRODUCTS OR SERVICES

OR A WARRANTY, REPRESENTATION OR ENDORSEMENT OF SUCH PRODUCTS OR SERVICES, EITHER

ALONE OR IN COMBINATION WITH ANY TI PRODUCT OR SERVICE.

12.1.2 Development Support

12.1.2.1 Models and Simulators

PSpice® for TI is a design and simulation environment that helps evaluate performance of analog circuits.

Create subsystem designs and prototype solutions before committing to layout and fabrication, reducing

development cost and time to market.

12.2 Documentation Support

12.2.1 Related Documentation

For related documentation see the following:

Texas Instruments, TPSM82822EVM-080 Evaluation Module, SLVUBR5

12.3 Receiving Notification of Documentation Updates

To receive notification of documentation updates, navigate to the device product folder on ti.com. Click on

Subscribe to updates to register and receive a weekly digest of any product information that has changed. For

change details, review the revision history included in any revised document.

12.4 Trademarks

MicroSiP^™are trademarks of TI.

All trademarks are the property of their respective owners.

12.5 Electrostatic Discharge Caution

This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled

with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.

ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may

be more susceptible to damage because very small parametric changes could cause the device not to meet its published

specifications.

12.6 Glossary

TI Glossary

This glossary lists and explains terms, acronyms, and definitions.

Mechanical, Packaging, and Orderable Information

The following pages include mechanical, packaging, and orderable information. This information is the most

current data available for the designated devices. This data is subject to change without notice and revision of

this document. For browser-based versions of this data sheet, refer to the left-hand navigation.

44

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Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

www.ti.com

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

13.1 Tape and Reel Information

REEL DIMENSIONS

TAPE DIMENSIONS

K0

P1

W

B0

Reel

Diameter

Cavity

A0

A0 Dimension designed to accommodate the component width

B0 Dimension designed to accommodate the component length

K0 Dimension designed to accommodate the component thickness

Overall width of the carrier tape

W

P1 Pitch between successive cavity centers

Reel Width (W1)

QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE

Sprocket Holes

Q1 Q2

Q3 Q4

Q1 Q2

Q3 Q4

User Direction of Feed

Pocket Quadrants

Reel

Diameter

(mm)

Reel

Width W1

(mm)

Package

Type

Package

Drawing

A0

(mm)

B0

(mm)

K0

(mm)

P1

(mm)

W

(mm)

Pin1

Quadrant

Device

Pins

SPQ

TPSM82821SILR

uSiP

SIL

10

3000

330.0

8.4

2.25

2.75

1.25

4.0

8.0

Q1

TPSM82821ASILR

TPSM828211SILR

TPSM828212SILR

TPSM828213SILR

TPSM828214SILR

TPSM82822SILR

TPSM82822ASILR

TPSM828221SILR

TPSM828222SILR

TPSM828223SILR

TPSM828224SILR

TPSM82823SILR

TPSM82823ASILR

uSiP

SIL

10

3000

330.0

8.4

2.25

2.75

1.25

4.0

8.0

Q1

8.4

2.25

2.75

1.25

4.0

8.0

Q1

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45

Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

www.ti.com

TAPE AND REEL BOX DIMENSIONS

Width (mm)

H

W

L

Device

Package Type

uSiP

Package Drawing Pins

SPQ

3000

Length (mm) Width (mm)

Height (mm)

58.0

TPSM82821SILR

TPSM82821ASILR

TPSM828211SILR

SIL

10

383.0

353.0

uSiP

58.0

uSiP

58.0

TPSM828212SILR

TPSM828213SILR

TPSM828214SILR

TPSM82822SILR

TPSM82822ASILR

TPSM828221SILR

TPSM828222SILR

TPSM828223SILR

TPSM828224SILR

TPSM82823SILR

TPSM82823ASILR

uSiP

SIL

10

3000

383.0

353.0

58.0

46

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Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

www.ti.com

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

PACKAGE OUTLINE

uSIP^TM- 1.1 mm max height

SIL0010D

S

C

A

L

E

6

.

0

MICRO SYSTEM IN PACKAGE

2.1

1.9

A

B

PIN 1 INDEX

AREA

2.6

2.4

(2)

PICK AREA

NOTE 3

(1.25)

1.1 MAX

C

SEATING PLANE

0.08 C

SYMM

SOLDER MASK

0.7

0.6

10X

10X EXPOSED COPPER

5

6

8X 0.5

SYMM

2

10

1

0.3

10X

(0.05) TYP

COPPER PULLBACK

PIN 1 ID

0.2

0.1

C A B

0.05

C

4223961/D 09/2019

MicroSiP is a trademark of Texas Instruments

NOTES:

1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing

per ASME Y14.5M.

2. This drawing is subject to change without notice.

3. Pick and place nozzle 0.33 mm or smaller recommended.

www.ti.com

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47

Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

www.ti.com

EXAMPLE BOARD LAYOUT

uSIP^TM- 1.1 mm max height

SIL0010D

MICRO SYSTEM IN PACKAGE

10X (0.65)

10

1

10X (0.25)

(R0.05) TYP

SYMM

8X (0.5)

6

5

SYMM

(1.25)

SEE SOLDER MASK

DETAILS

LAND PATTERN EXAMPLE

EXPOSED METAL SHOWN

SCALE:25X

0.05 MAX

ALL AROUND

0.05 MIN

ALL AROUND

EXPOSED

METAL

EXPOSED

METAL

SOLDER MASK

OPENING

METAL EDGE

SOLDER MASK

OPENING

METAL UNDER

SOLDER MASK

NON SOLDER MASK

DEFINED

SOLDER MASK DEFINED

SOLDER MASK DETAILS

NOT TO SCALE

4223961/D 09/2019

NOTES: (continued)

4. For more information, see Texas Instruments literature number SLUA271 (www.ti.com/lit/slua271).

www.ti.com

48

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Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

TPSM82823, TPSM82822, TPSM82821, TPSM82823A, TPSM82822A, TPSM82821A

www.ti.com

SLVSEP0F – AUGUST 2019 – REVISED NOVEMBER 2021

EXAMPLE STENCIL DESIGN

uSIP^TM- 1.1 mm max height

SIL0010D

MICRO SYSTEM IN PACKAGE

7X (0.65)

10

7X (0.25)

1

SYMM

8X (0.5)

5

6

(R0.05) TYP

SYMM

(1.25)

SOLDER PASTE EXAMPLE

BASED ON 0.125 mm THICK STENCIL

SCALE:25X

4223961/D 09/2019

NOTES: (continued)

5. Laser cutting apertures with trapezoidal walls and rounded corners may oﬀer better paste release. IPC-7525 may have alternate

design recommendations.

www.ti.com

Submit Document Feedback

49

Product Folder Links: TPSM82823 TPSM82822 TPSM82821 TPSM82823A TPSM82822A TPSM82821A

PACKAGE MATERIALS INFORMATION

www.ti.com

25-Nov-2021

TAPE AND REEL INFORMATION

*All dimensions are nominal

Device

Package Package Pins

Type Drawing

SPQ

Reel

A0

B0

K0

P1

W

Pin1

Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant

(mm) W1 (mm)

TPSM828211SILR

TPSM828212SILR

TPSM828213SILR

TPSM828214SILR

TPSM82821ASILR

TPSM82821SILR

TPSM828221SILR

TPSM828222SILR

TPSM828223SILR

TPSM828224SILR

TPSM82822ASILR

TPSM82822SILR

TPSM82823ASILR

TPSM82823SILR

uSiP

SIL

10

3000

330.0

8.4

2.25

2.75

1.25

4.0

8.0

Q1

Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION

www.ti.com

25-Nov-2021

*All dimensions are nominal

Device

Package Type Package Drawing Pins

SPQ

Length (mm) Width (mm) Height (mm)

TPSM828211SILR

TPSM828212SILR

TPSM828213SILR

TPSM828214SILR

TPSM82821ASILR

TPSM82821SILR

TPSM828221SILR

TPSM828222SILR

TPSM828223SILR

TPSM828224SILR

TPSM82822ASILR

TPSM82822SILR

TPSM82823ASILR

TPSM82823SILR

uSiP

SIL

10

3000

383.0

353.0

58.0

Pack Materials-Page 2

IMPORTANT NOTICE AND DISCLAIMER

TI PROVIDES TECHNICAL AND RELIABILITY DATA (INCLUDING DATA SHEETS), DESIGN RESOURCES (INCLUDING REFERENCE

DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS”

AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS AND IMPLIED, INCLUDING WITHOUT LIMITATION ANY

IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT OF THIRD

PARTY INTELLECTUAL PROPERTY RIGHTS.

These resources are intended for skilled developers designing with TI products. You are solely responsible for (1) selecting the appropriate

TI products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable

standards, and any other safety, security, regulatory or other requirements.

These resources are subject to change without notice. TI grants you permission to use these resources only for development of an

application that uses the TI products described in the resource. Other reproduction and display of these resources is prohibited. No license

is granted to any other TI intellectual property right or to any third party intellectual property right. TI disclaims responsibility for, and you

will fully indemnify TI and its representatives against, any claims, damages, costs, losses, and liabilities arising out of your use of these

resources.

TI’s products are provided subject to TI’s Terms of Sale or other applicable terms available either on ti.com or provided in conjunction with

such TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for

TI products.

TI objects to and rejects any additional or different terms you may have proposed. IMPORTANT NOTICE

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265


型号：	TPSM82822A
厂家：	TEXAS INSTRUMENTS
描述：	TPSM8282x, TPSM8282xA 1-A, 2-A, and 3-A High Efficiency Step-Down Converter MicroSiPâ¢ Power Module with Integrated Inductor
文件：	总54页 (文件大小：6194K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TPSM82822A [TI]

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TPSM82823A

TPSM82823ASILR

TPSM82823SILR

TPSM82823XSILR

TPSM82823_V01

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TPSM82864A