TPS72515DCQ [TI]

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TPS72501

TPS72515, TPS72516

TPS72518, TPS72525

SLVS341D – MAY 2002 – REVISED MARCH 2004

LOW INPUT VOLTAGE, 1-A LOW-DROPOUT LINEAR REGULATORS WITH SUPERVISOR

FEATURES

•

•

1-A Output Current

Available in 1.5-V, 1.6-V, 1.8-V, 2.5-V

Fixed-Output and Adjustable Versions

(1.2-V to 5.5-V)

Input Voltage Down to 1.8 V

Low 170-mV Dropout Voltage at 1 A

(TPS72525)

Stable With Any Type/Value Output Capacitor

Integrated Supervisor (SVS) With 50-ms

RESET Delay Time

Low 210-µA Ground Current at Full Load

(TPS72525)

Less than 1-µA Standby Current

±2%

Output Voltage Tolerance Over Line,

Load, and Temperature (-40°C to 125°C)

Integrated UVLO

Thermal and Overcurrent Protection

5-Lead SOT223-5 or DDPAK and 8-Pin SOP

(TPS72501 only) Surface Mount Package

DESCRIPTION

The TPS725xx family of 1-A low-dropout (LDO) linear

regulators has fixed voltage options available that are

commonly used to power the latest DSPs, FPGAs,

and microcontrollers. An adjustable option ranging

from 1.22 V to 5.5 V is also available. The integrated

supervisory circuitry provides an active low RESET

signal when the output falls out of regulation. The no

capacitor/any capacitor feature allows the customer

to tailor output transient performance as needed.

Therefore, compared to other regulators capable of

providing the same output current, this family of

regulators can provide a stand-alone power supply

solution or a post regulator for a switch mode power

supply.

These regulators are ideal for higher current appli-

cations. The family operates over a wide range of

input voltages (1.8 V to 6 V) and has very low

dropout (170 mV at 1-A).

Ground current is typically 210 µA at full load and

drops to less than 80 µA at no load. Standby current

is less than 1 µA.

Each regulator option is available in either a

SOT223-5, D (TPS72501 only), or DDPAK package.

With a low input voltage and properly heatsinked

package, the regulator dissipates more power and

achieves higher efficiencies than similar regulators

requiring 2.5 V or more minimum input voltage and

higher quiescent currents. These features make it a

viable power supply solution for portable, bat-

tery-powered equipment.

D PACKAGE

(TOP VIEW)

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•

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APPLICATIONS

•

•

•

•

•

PCI Cards

Modem Banks

Telecom Boards

DSP, FPGA, and Microprocessor Power

Supplies

Portable, Battery-Powered Applications

DCQ PACKAGE

SOT223-5

(TOP VIEW)

ENABLE

IN

GND

OUT

RESET/FB

1

2

3

4

5

1 2 3 4 5

KTT PACKAGE

DDPAK

(TOP VIEW)

OUT

FB

GND

NC

1

2

3

4

8

7

6

5

IN

GND

GND

ENABLE

ENABLE

IN

GND

OUT

RESET/FB

NC − No internal connection

NOTE: TPS72501 replaces RESET with FB. Tab is GND for the DCK and KTT packages.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Copyright © 2002–2004, Texas Instruments Incorporated

TPS72501

TPS72515, TPS72516

TPS72518, TPS72525

SLVS341D – MAY 2002 – REVISED MARCH 2004

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

DESCRIPTION (CONTINUED)

Although an output capacitor is not required for stability, transient response and output noise are improved with a

10-µF output capacitor.

Unlike some regulators that have a minimum current requirement, the TPS725 family is stable with no output

load current. The low noise capability of this family, coupled with its high current operation and ease of power

dissipation, make it ideal for telecom boards, modem banks, and other noise-sensitive applications.

ORDERING INFORMATION

T

J

VOLTAGE

(1)

Adjustable (1.2 V to 5 V)

1.5 V

-40°C to

125°C

1.6 V

1.8 V

2.5 V

(1)

(2)

(3)

(4)

SOT223-5

(2)

TPS72501DCQ

TPS72515DCQ

TPS72516DCQ

TPS72518DCQ

TPS72525DCQ

SYMBOL

PS72501

PS72515

PS72516

PS72518

PS72525

DDPAK

(3)

TPS72501KTT

TPS72515KTT

TPS72516KTT

TPS72518KTT

TPS72525KTT

D

(4)

TPS72501D

—

—

—

—

SYMBOL

TPS72501

TPS72515

TPS72516

TPS72518

TPS72525

Other voltage options are available upon request from the manufacturer.

To order a taped and reeled part, add the suffix

R

to the part number (e.g., TPS72501DCQR).

To order a 50-piece reel, add the suffix

T

(e.g., TPS72501KTTT); to order a 500-piece reel, add the suffix

R

(e.g., TPS72501KTTR).

To order a taped and reeled part, add the suffix

R

or

T

(2500 or 500) to the part number (e.g. TPS72501DR)

ABSOLUTE MAXIMUM RATINGS

over operating free-air temperature range unless otherwise noted

(1)

UNIT

Input voltage, V

I

(2)

-0.3 to 7

-0.3 to V

I

+ 0.3

6

2

-50 to 150

150

-65 to 150

V

V

V

kV

°C

°C

°C

Voltage range at EN, FB

Voltage on OUT, RESET

ESD rating, HBM

Continuous total power dissipation

Operating junction temperature range, T

J

Maximum junction temperature range, T

J

Storage temperature, T

stg

(1)

(2)

See Dissipation Ratings Table

Stresses beyond those listed under

absolute maximum ratings

may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under

recommended operating

conditions

is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

All voltage values are with respect to network ground terminal.

RECOMMENDED OPERATING CONDITIONS

MIN NOM MAX UNIT

Input voltage, V

I

(1)

1.8

0

-40

6

1

125

V

A

°C

Continuous output current, I

O

Operating junction temperature, T

J

(1)

Minimum V

I

= V

O

(nom) + V

DO

.

2

www.ti.com

TPS72501

TPS72515, TPS72516

TPS72518, TPS72525

SLVS341D – MAY 2002 – REVISED MARCH 2004

PACKAGE DISSIPATION RATINGS

PACKAGE

DDPAK

SOT223

D-8

(1)

(2)

BOARD

High K

(1)

Low K

(2)

High K

(1)

R

θJC

2

°C/W

15

°C/W

39.4

°C/W

R

θJA

23

°C/W

53

°C/W

55

°C/W

The JEDEC high-K (2s2p) board design used to derive this data was a 3-inch x 3-inch (7.5-cm x 7.5-cm), multilayer board with 1 ounce

internal power and ground planes and 2 ounce copper traces on top and bottom of the board.

The JEDEC low-K (1s) board design used to derive this data was a 3-inch x 3-inch (7.5-cm x 7.5-cm), two-layer board with 2 ounce

copper traces on top of the board.

ELECTRICAL CHARACTERISTICS

over recommended operating free-air temperature range V

I

= V

O(typ)

+ 1 V, I

O

= 1 mA, EN = IN, C

o

= 1 µF, C

i

= 1 µF (unless

otherwise noted)

PARAMETER

Bandgap voltage reference

TPS72501

Adjustable

TPS72515

TPS72516

TPS72518

TPS72525

I

Ground current

Standby current

V

n

PSRR

Output noise voltage

Ripple rejection

Current limit

(2)

Output voltage line regulation

(∆V

O

/V

O

)

(3)

Output voltage load regulation

V

IH

V

IL

I

I

I

(FB)

EN high level

input

(2)

EN = 0 V or V

I

TPS72501

V

CC

rising

T

J

= 25°C, V

CC

rising

T

J

= 25°C, V

CC

rising

T

J

= 25°C, V

CC

rising

V

(FB)

= 1.22

-100

1.45

1.57

50

10

100

EN low level input

(2)

EN input current

Feedback current

UVLO threshold

UVLO hysteresis

UVLO deglitch

UVLO delay

(1)

(2)

(3)

V

O

+ 1 V < V

I

≤

5.5 V

0 µA < I

O

< 1 A

0 µA < I

O

< 1 A

(1)

T

J

= 25°C

0 µA< I

O

< 1 A

T

J

= 25°C

0 µA < I

O

< 1 A

T

J

= 25°C

0 µA < I

O

< 1 A

T

J

= 25°C

0 µA < I

O

< 1 A

I

O

= 0 µA

I

O

= 1 A

EN < 0.4 V

EN < 0.4 V

BW = 200 Hz to 100 kHz,

T

J

= 25°C

f = 1 kHz, C

o

= 10 µF

C

o

= 10 µF, I

O

= 1

mA

T

J

= 25°C

1.1

-0.15

-0.25

1.3

-0.2

0.01

0.4

100

100

1.70

150

60

1.6

0.02

0.05

2.3

0.15

0.25

T

J

= 25°C

3.5 V

≤

V

I

≤

5.5 V

2.45

75

210

0.2

1

2.8 V

≤

V

I

≤

5.5 V

1.764

2.5

2.55

120

300

µA

µA

µV

dB

A

%/V

%/A

V

nA

nA

V

mV

µs

µs

2.6 V

≤

V

I

≤

5.5 V

1.568

1.8

1.836

1.8 V

≤

V

I

≤

5.5 V

1.47

1.6

1.632

V

1.22 V

≤

V

O

≤

5.5 V

TEST CONDITIONS

MIN

1.177

0.965 V

O

1.5

1.53

TYP

1.220

MAX

1.263

1.035 V

O

UNIT

V

V

O

Output voltage

Minimum IN operating voltage used for testing is V

O(typ)

+ 1 V.

Test condition includes output voltage V

O

= V

O

- 15% and pulse duration = 10 ms.

V

Imin

= (V

O

+ 1) or 1.8 V whichever is greater.

V

Line regulation (mV)

+

% V

O

5.5 V

*

V

100

Imin

1000

3

TPS72501

TPS72515, TPS72516

TPS72518, TPS72525

SLVS341D – MAY 2002 – REVISED MARCH 2004

www.ti.com

ELECTRICAL CHARACTERISTICS (continued)

over recommended operating free-air temperature range V

I

= V

O(typ)

+ 1 V, I

O

= 1 mA, EN = IN, C

o

= 1 µF, C

i

= 1 µF (unless

otherwise noted)

PARAMETER

TPS72525

V

DO

Dropout voltage

TPS72518

Minimum input voltage for valid

RESET

Trip threshold voltage

Hysteresis voltage

RESET

t

(RESET)

delay time

Rising edge deglitch

Output low voltage (at 700 µA)

Leakage current

(4)

-0.3

25

(4)

(4)

TEST CONDITIONS

I

O

= 1 A

I

O

= 1 A

I

O

= 1 A

I

O

= 1 A

T

J

= 25°C

T

J

= 25°C

MIN

TYP

170

MAX

280

UNIT

210

320

1.3

90

93

10

50

10

0.4

100

75

96

mV

V

%V

O

mV

ms

µs

V

nA

Dropout voltage is defined as the differential voltage between V

O

and V

I

when V

O

drops 100 mV below the value measured with

V

I

= V

O

+ 1 V.

4

www.ti.com

TPS72501

TPS72515, TPS72516

TPS72518, TPS72525

SLVS341D – MAY 2002 – REVISED MARCH 2004

FUNCTIONAL BLOCK DIAGRAM—ADJUSTABLE VERSION

TPS72501

IN

EN

1.220

V

ref

GND

Current

Limit/Thermal

Protection

OUT

FB

FUNCTIONAL BLOCK DIAGRAM—FIXED VERSION

TPS72515/16/18/25

IN

EN

1.220

V

ref

GND

Current

Limit/Thermal

Protection

OUT

Deglitch

and

Delay

0.93

×

V

ref

RESET

TERMINAL FUNCTIONS

TERMINAL

NAME

ENABLE

FB

GND

IN

RESET/FB

NO.

D

5

2

3, 6, 7

8

—

3

2

5

I

O/I

NO.D

CQ &

KTT

1

I/O

DESCRIPTION

I

Enable input

Feedback

Ground

Input supply voltage

This terminal is the feedback point for the adjustable option TPS72501. For all other options, this

terminal is the RESET output terminal. When used with a pullup resistor, this open-drain output

provides the active low RESET signal when the regulator output voltage drops more than 5% below

its nominal output voltage. The RESET delay time is typically 50 ms.

No connection

Regulated output voltage

NC

OUT

4

1

—

4

O

5