TPS60201DGS_技术文档

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

0.05 µA Shutdown Current, Battery Is

Isolated From Load in Shutdown Mode

features

Regulated 3.3-V Output Voltage With up to

100 mA Output Current From a 1.8 V to

3.6 V Input Voltage

Less Than 5 mV

Compact Converter Solution in Ultra-Small

10-pin MSOP With Only Four External

Capacitors Required

Output Voltage Ripple

(PP)

Evaluation Module Available

(TPS60200EVM-145)

Achieved With Push-Pull Topology

Integrated Low-Battery and Power-Good

Detector

applications

Switching Frequency Can Be Synchronized

to External Clock Signal

Replaces DC/DC Converters With Inductors

in Battery Powered Applications Like:

– Two Battery Cells to 3.3-V Conversion

– MP3 Portable Audio Players

– Battery-Powered Microprocessor

Systems

– Backup-Battery Boost Converters

– PDA’s, Organizers, Cordless Phones

– Handheld Instrumentation

Extends Battery Usage With up to 90%

Efficiency and 35 µA Quiescent Supply

Current

Reliable System Shutdown Because Output

Capacitor Is Discharged When Device Is

Disabled

Easy-To-Design, Low Cost, Low EMI Power

Supply Since No Inductors Are Used

– Glucose Meters and Other Medical

Instruments

·

description

The TPS6020x step-up, regulated charge pumps generate a 3.3-V ± 4% output voltage from a 1.8-V to 3.6-V

input voltage. The devices are typically powered by two Alkaline, NiCd or NiMH battery cells and operate down

to a minimum supply voltage of 1.6 V. Continuous output current is a minimum of 100 mA for the TPS60200 and

TPS60201 and 50 mA for the TPS60202 and TPS60203, all from a 2-V input. Only four external capacitors are

needed to build a complete low-ripple dc/dc converter. The push-pull operating mode of two single-ended

charge pumps assures the low output voltage ripple as current is continuously transferred to the output.

TPS60200

OUTPUT

3.3V, 100 mA

INPUT

1.6V to 3.6V

PEAK OUTPUT CURRENT

vs

TPS60200

5

7

1

IN

OUT

INPUT VOLTAGE

C

o

350

300

250

R1

R2

C

i

µ

R3

µ

2.2

F

2.2

F

LBI

10

LBO

Low Battery

Warning

4

6

8

C1+

C2+

C2–

C1

200

150

100

50

3

9

C2

µ

1

F

C1–

EN

µ

1

F

GND

2

OFF/ON

Figure 1. Typical Application Circuit

With Low-Battery Warning

0

1.6

2.0

2.4

2.8

3.2

3.6

V – Input Voltage – V

I

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 Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

description (continued)

The devices operate in the newly developed LinSkip mode. In this operating mode, the device switches

seamlessly from the power saving pulse-skip mode at light loads to the low-noise constant-frequency,

linear-regulation mode once the output current exceeds the LinSkip threshold of about 7-mA. Even in pulse-skip

mode the output ripple is maintained at a very low level because the output resistance of the charge pump is

still regulated.

Three operating modes can be programmed using the EN pin. EN = low disables the device, shuts down all

internal circuits and disconnects the output from the input. EN = high enables the device and programs it to run

from the internal oscillator. The devices operate synchronized to an external clock signal if EN is clocked; thus

switching harmonics can be controlled and minimized. The devices include a low-battery detector that issues a

warning if the battery voltage drops below a user-defined threshold voltage or a power-good detector that goes

active when the output voltage reaches about 90% of its nominal value.

Device options with either a low-battery or power good detector are available. This dc/dc converter requires no

inductors therefore EMI of the system is reduced to a minimum. It is available in the small 10-pin MSOP package

(DGS).

DGS PACKAGES

TPS60201,

TPS60203

TPS60200,

TPS60202

GND

C1–

PG

EN

C2–

IN

1

2

3

4

5

10

9

LBI

GND

C1–

LBO

EN

1

2

3

4

5

10

9

8

C2–

IN

C1+

7

C1+

7

6

OUT

C2+

6

OUT

C2+

AVAILABLE OPTIONS

MARKING

DGS

PACKAGE

OUTPUT

CURRENT VOLTAGE

OUTPUT

†

T

PART NUMBER

DEVICE FEATURES

A

(mA)

100

50

(V)

3.3

TPS60200DGS

TPS60201DGS

TPS60202DGS

TPS60203DGS

AEX

AEY

AEZ

AFA

Low-battery detector

Power-good detector

Low-battery detector

Power-good detector

–40°C to 85°C

50

†

The DGS package is available taped and reeled. Add R suffix to device type (e.g. TPS60200DGSR) to order

quantities of 3000 devices per reel.

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

functional block diagrams

TPS60200 and TPS60202 with low-battery detector

Charge Pump 1

Charge Pump 2

0°

IN

Oscillator

180°

C1+

C1–

C1

C2

EN

Control

Circuit

C2+

C2–

_

+

OUT

V

REF

–

Shutdown/

Start-Up

Control

Auto–

Discharge

_

+

LBI

+

0.8* V

+

IN

–

V

REF

–

LBO

GND

TPS60201 and TPS60203 with power-good detector

Charge Pump 1

Charge Pump 2

0°

IN

Oscillator

180°

C1+

C1–

C1

C2

EN

Control

Circuit

C2+

C2–

_

+

OUT

V

REF

–

Shutdown/

Start-Up

Control

Auto–

Discharge

_

+

0.8* V

+

IN

–

V

REF

–

PG

GND

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

C1+

NO.

4

Positive terminal of the flying capacitor C1

C1–

C2+

C2–

3

Negative terminal of the flying capacitor C1

6

Positive terminal of the flying capacitor C2

8

Negative terminal of the flying capacitor C2

Device-enable input. Three operating modes can be programmed with the EN pin.

–

EN = Low disables the device. Output and input are isolated in the shutdown mode and the output capacitor is

automatically discharged.

EN

9

I

–

EN = High lets the device run from the internal oscillator.

If an external clock signal is applied to the EN pin, the device is in Sync–Mode and runs synchronized at the

frequency of the external clock signal.

GND

IN

2

7

Ground

I

Supply input. Bypass IN to GND with a capacitor of the same size as C .

o

Low-battery detector input for TPS60200 and TPS60202. A low-battery warning is generated at the LBO pin when

the voltage on LBI drops below the threshold of 1.18 V. Connect LBI to GND if the low-battery detector function is

not used. For the devices TPS60201 and TPS60203, this pin has to be connected to ground (GND pin).

LBI/GND

1

Open-drain low-battery detector output for TPS60200 and TPS60202. This pin is pulled low if the voltage on LBI

dropsbelow the threshold of 1.18 V. A pullup resistor should be connected between LBO and OUT or any other logic

supply rail that is lower than 3.6 V.

LBO/PG

OUT

10

5

O

Open-drain power-good detector output for TPS60201 and TPS60203. As soon as the voltage on OUT reaches

about 90% of it is nominal value this pin goes active high. A pullup resistor should be connected between PG and

OUT or any other logic supply rail that is lower than 3.6 V.

Regulated 3.3-V power output. Bypass OUT to GND with the output filter capacitor C .

o

detailed description

operating principle

The TPS6020x charge pumps provide a regulated 3.3 V output from a 1.8 V to 3.6 V input. They deliver up to

100 mA load current while maintaining the output at 3.3 V ± 4%. Designed specifically for space critical battery

powered applications, the complete converter requires only four external capacitors. The device is using the

push-pull topology to achieve lowest output voltage ripple. The converter is also optimized for smallest board

space. It makes use of small sized capacitors, with the highest output current rating per output capacitance and

package size.

The TPS6020x circuits consist of an oscillator, a 1.18 V voltage reference, an internal resistive feedback circuit,

an error amplifier, two charge pump power stages with high current MOSFET switches, a shutdown/start-up

circuit, a control circuit, and an auto-discharge transistor (see functional block diagrams).

push-pull operating mode

The two single-ended charge pump power stages operate in the so-called push-pull operating mode, i.e. they

operate with a 180°C phase shift. Each single-ended charge pump transfers charge into its transfer capacitor

(C1 or C2) in one half of the period. During the other half of the period (transfer phase), the transfer capacitor

isplacedinserieswiththeinputtotransferitschargetoC . Whileonesingle-endedchargepumpisinthecharge

o

phase, the other one is in the transfer phase. This operation assures an almost constant output current which

ensures a low output ripple.

Iftheclockweretoruncontinuously, thisprocesswouldeventuallygenerateanoutputvoltageequaltotwotimes

the input voltage (hence the name voltage doubler). In order to provide a regulated fixed output voltage of 3.3

V, the TPS6020x devices use either pulse-skip or constant-frequency linear-regulation control mode. The mode

is automatically selected based on the output current. If the load current is below the LinSkip current threshold,

it switches into the power-saving pulse-skip mode to boost efficiency at low output power.

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

detailed description (continued)

constant-frequency mode

When the output current is higher then the LinSkip current threshold, the charge pump runs continuously at the

switching frequency f . The control circuit, fed from the error amplifier, controls the charge on C1 and C2

(OSC)

bycontrollingthegatesandhencether

oftheintegratedMOSFETs. Whentheoutputvoltagedecreases,

DS(ON)

the gate drive increases, resulting in a larger voltage across C1 and C2. This regulation scheme minimizes

output ripple. Since the device switches continuously, the output signal contains well-defined frequency

components, and the circuit requires smaller external capacitors for a given output ripple. However,

constant-frequency mode, due to higher operating current, is less efficient at light loads. For this reason, the

device switches seamlessly into the pulse-skip mode when the output current drops below the LinSkip current

threshold.

pulse-skip mode

The regulator enters the pulse-skip mode when the output current is lower than the LinSkip current threshold

of 7 mA. In the pulse-skip mode, the error amplifier disables switching of the power stages when it detects an

output voltage higher than 3.3 V. The controller skips switching cycles until the output voltage drops below 3.3

V. Then the error amplifier reactivates the oscillator and switching of the power stages starts again. A 30 mV

output voltage offset is introduced in this mode.

The pulse-skip regulation mode minimizes operating current because it does not switch continuously and

deactivates all functions except the voltage reference and error amplifier when the output is higher than 3.3 V.

Evenin pulse-skip mode the r

of the MOSFETs is controlled. This way the energy per switching cycle that

DS(ON)

is transferred by the charge pump from the input to the output is limited to the minimum that is necessary to

sustain a regulated output voltage, with the benefit that the output ripple is kept to a minimum. When switching

is disabled from the error amplifier, the load is also isolated from the input.

start up, shutdown, and auto-discharge

During start-up, i.e. when EN is set from logic low to logic high, the output capacitor is directly connected to IN

and charged up with a limited current until the output voltage V reaches 0.8 × V . When the start-up comparator

O

I

detects this limit, the converter begins switching. This precharging of the output capacitor guarantees a short

start-up time. In addition, the inrush current into an empty output capacitor is limited. The converter can start

into a full load, which is defined by a 33-Ω or 66-Ω resistor, respectively.

Driving EN low disables the converter. This disables all internal circuits and reduces the supply current to only

0.05 µA. The device exits shutdown once EN is set high. When the device is disabled, the load is isolated from

the input. This is an important feature in battery operated products because it extends the products shelf life.

Additionally, the output capacitor will automatically be discharged after EN is taken low. This ensures that the

system, when switched off, is in a stable and reliable condition since the supply voltage is removed from the

supply pins.

synchronization to an external clock signal

The operating frequency of the charge pump is limited to 400 kHz in order to avoid interference in the sensitive

455 kHz IF band. The device can either run from the integrated oscillator, or an external clock signal can be used

to drive the charge pump. The maximum frequency of the external clock signal is 800 kHz. The switching

frequency used internally to drive the charge pump power stages is half of the external clock frequency. The

external clock signal is applied to the EN-pin. The device will switch off if the signal on EN is hold low for more

than 10 µs.

When the load current drops below the LinSkip current threshold, the devices will enter the pulse-skip mode

but stay synchronized to the external clock signal.

5

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

detailed description (continued)

low-battery detector (TPS60200 and TPS60202)

The low-battery comparator trips at 1.18 V ± 4% when the voltage on pin LBI ramps down. The voltage V

(TRIP)

at which the low-battery warning is issued can be adjusted with a resistive divider as shown in Figure 2. The

sum of resistors R1 and R2 is recommended to be in the 100 kΩ to 1 MΩ range. When choosing R1 and R2,

be aware of the input leakage current into the LBI pin.

LBOisanopendrainoutput. AnexternalpullupresistortoOUT, oranyothervoltagerailintheappropriaterange,

in the 100 kΩ to 1 MΩ range is recommended. During start-up, the LBO output signal is invalid for the first 500

µs. LBO is high impedance when the device is disabled. If the low-battery comparator function is not used,

connect LBI to ground and leave LBO unconnected. The low-battery detector is disabled when the device is

switched off.

V

O

IN

V

BAT

R3

LBO

R1

R2

R1

R2

LBI

V_(TRIP)

1.18 V 1

_

+

–

V

REF

Figure 2. Programming of the Low-Battery Comparator Trip Voltage

A 100 nF ceramic capacitor should be connected in parallel to R2 if large line transients are expected. These

voltage drops can inadvertently trigger the low-battery comparator and produce a wrong low-battery warning

signal at the LBO pin.

Formulas to calculate the resistive divider for low-battery detection, with V

of resistors R1 and R2 equal 1 MΩ:

= 1.13 V to 1.23 V and the sum

LBI

V

LBI

R2

R1

1 M

(1)

(2)

V

Bat

R2

Formulas to calculate the minimum and maximum battery voltage:

R1

R2

(min)

R2

(max)

V

(3)

(4)

Bat(min)

LBI(min)

(max)

R1

R2

(max)

R2

(min)

V

Bat(max)

LBI(max)

(min)

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

detailed description (continued)

Table 1. Recommended Values for the Resistive Divider From the E96 Series (±1%)

VIN/V

1.6

R1/kΩ

267

R2/kΩ

750

V

/V

V

/V

TRIP(MIN)

TRIP(MAX)

1.524

1.677

1.7

301

681

1.620

1.710

1.799

1.903

1.785

1.887

1.988

2.106

1.8

340

649

1.9

374

619

2.0

402

576

power-good detector (TPS60201 and TPS60203)

The power-good output is an open-drain output that pulls low when the output is out of regulation. When the

output rises to within 90% of its nominal voltage, the power-good output is released. Power-good is high

impedance in shutdown. In normal operation, an external pullup resistor must be connected between PG and

OUT, or any other voltage rail in the appropriate range. The resistor should be in the 100 kΩ to 1 MΩ range.

If the PG output is not used, it should remain unconnected.

†

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Voltage range: IN, OUT, EN, LBI, LBO, PG to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to 3.6 V

C1+, C2+ to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (V + 0.3 V)

O

C1–, C2– to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to (V + 0.3 V)

I

Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See dissipation rating table

Continuous output current TPS60200, TPS60201 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 mA

Continuous output current TPS60202, TPS60203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 mA

Storage temperature range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55°C to 150°C

stg

Maximum junction temperature, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C

J

†

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.

DISSIPATION RATING TABLE 1 FREE-AIR TEMPERATURE

T

≤ 25°C

DERATING FACTOR

T

= 70°C

T = 85°C

A

POWER RATING

A

PACKAGE

POWER RATING

ABOVE T = 25°C

POWER RATING

A

DGS

424 mW

3.4 mW/ C

187 mW

136 mW

The thermal resistance junction to ambient of the DGS package is R

TH–JA

= 294°C/W.

recommended operating conditions

MIN

1.6

NOM MAX

UNIT

V

Input voltage range, V

3.6

I

Input capacitor, C

2.2

1

µF

°C

i

Flying capacitors, C1, C2

Output capacitor, C

2.2

o

Operating junction temperature, T

–40

125

J

7

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

electrical characteristics at C = 2.2 µF, C1 = C2= 1 µF, C = 2.2 µF, T = –40°C to 85°C, V = 2.4 V,

i

o

A

I

EN = V (unless otherwise noted)

I

PARAMETER

TEST CONDITIONS

MIN

100

50

TYP

MAX

UNIT

mA

V

TPS60200 and TPS60201, V = 2 V

I

Maximum continuous output current

O(MAX)

TPS60202 and TPS60203, V = 2 V

I

1.6 V < V < 1.8 V, 0 < I < 0.25 × I

3

I

O

O(MAX)

1.8 V < V < 2 V,

0 < I < 0.5 × I

3.17

3.43

3.47

V

I

O

O(MAX)

V

Output voltage

O

2 V < V < 3.3 V,

0 < I < I

O(MAX)

V

I

O

3.3 V < V < 3.6 V, 0 < I < I

V

I

O

O(MAX)

Output voltage ripple

I

= I

5

35

mV

PP

µA

PP

O

O(MAX)

I

f

Quiescent current (no-load input current)

Shutdown supply current

Internal switching frequency

External clock signal frequency

External clock signal duty cycle

EN input low voltage

= 0 mA, V = 1.8 V to 3.6 V

70

1

(Q)

O

I

EN = 0 V

0.05

300

600

µA

(SD)

200

400

800

70%

kHz

(OSC)

(SYNC)

30%

V

V = 1.6 V to 3.6 V

I

V = 1.6 V to 3.6 V

I

0.3 × V

I

V

IL

EN input high voltage

0.7 × V

I

IH

I

EN input leakage current

EN = 0 V or V

0.01

0.6

0.1

µA

lkg(EN)

I

EN is set from V to GND,

Time until V < 0.5V

O

I

Output capacitor auto discharge time

ms

Output resistance in shutdown

LinSkip threshold

EN = 0V

70

7

Ω

V = 2.2V

I

mA

Output load regulation

10 mA < I < I

; T = 25°C

0.01

%/mA

O

O(MAX)

A

2 V < V < 3.3 V,

I

= 0.5 x I

,

O(MAX)

I

O

Output line regulation

Short circuit current

0.6

60

%/V

mA

T

A

= 25°C

I

V = 2.4 V,

I

V

= 0 V

O

(SC)

electrical characteristics for low-battery comparator of devices TPS60200 and TPS60202 at

T = –40°C to 85°C, V = 2.4 V and EN = V (unless otherwise noted)

A

i

PARAMETER

TEST CONDITIONS

V = 1.6V to 2.2V, T = 0°C to 70°C

MIN

TYP

1.18

10

MAX

UNIT

V

(LBI)

LBI trip voltage

1.13

1.23

I

c

LBI trip voltage hysteresis

LBI input current

For rising voltage at LBI

mV

nA

V

I

V

(LBI)

V

(LBI)

V

(LBI)

= 1.3 V

= 0 V,

2

50

0.4

0.1

I(LBI)

V

LBO output voltage low

LBO leakage current

I

= 1 mA

= 3.3 V

(LBO)

O(LBO)

(LBO)

I

= 1.3 V,

V

0.01

µA

lkg(LBO)

NOTE: During start-up of the converter the LBO output signal is invalid for the first 500 µs.

electrical characteristics for power-good comparator of devices TPS60201 and TPS60203 at

T = –40°C to 85°C, V = 2.4 V and EN = V (unless otherwise noted)

A

i

PARAMETER

TEST CONDITIONS

T = 0°C to 70°C

MIN

TYP

MAX

UNIT

V

(PG)

Power-good trip voltage

0.87 × V

0.91 × V

0.95 × V

O

V

c

O

V

Power-good trip voltage hysteresis

Power-good output voltage Low

Power-good leakage current

V

O

V

O

V

O

decreasing, T = 0°C to 70°C

1%

hys(PG)

O(PG)

lkg(PG)

c

V

= 0V,

I

= 1 mA

= 3.3 V

0.4

0.1

V

(PG)

I

= 3.3 V,

V

0.01

µA

(PG)

NOTE: During start-up of the converter the PG output signal is invalid for the first 500 µs.

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

TYPICAL CHARACTERISTICS

Table of Graphs

FIGURES

η

Efficiency

vs Output current (TPS60200 and TPS60202)

vs Input voltage

3, 4

Efficiency

5

6

I

Q

Quiescent supply current

vs Input voltage

vs Output current (TPS60200 and TPS60202)

vs Input voltage (TPS60200 and TPS60202)

vs Time

7, 8

9, 10

11, 12, 13

14

V

Output voltage

O

V

Output voltage ripple

Start-up timing

Load transient response

Line transient response

Peak output current

15

16

I

O

vs Input voltage (TPS60200)

17

NOTE: All typical characteristics were measured using the typical application circuit of Figure 18 (unless otherwise noted).

TPS60200

EFFICIENCY

vs

TPS60202

EFFICIENCY

vs

OUTPUT CURRENT

100

90

80

70

60

100

90

80

70

60

V = 1.8 V

I

50

40

50

40

V = 2.4 V

I

V = 1.8 V

I

V = 2.7 V

I

V = 2.4 V

I

30

V = 2.7 V

20

10

0

I

20

10

0

0.1

1

I

10

100

1000

0.1

1

10

100

– Output Current – mA

I

O

– Output Current – mA

O

Figure 3

Figure 4

9

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TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

TYPICAL CHARACTERISTICS

TPS60200

EFFICIENCY

vs

QUIESCENT SUPPLY CURRENT

vs

INPUT VOLTAGE

100

40

38

36

34

32

30

28

26

I

O

= 0 mA

90

80

70

60

50

I

O

= 50 mA

40

30

20

24

22

20

10

0

1.6

2.0

2.4

2.8

3.2

3.6

1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3.6

V – Input Voltage – V

I

V – Input Voltage – V

I

Figure 5

Figure 6

TPS60202

OUTPUT VOLTAGE

vs

TPS60200

OUTPUT VOLTAGE

vs

OUTPUT CURRENT

3.35

3.5

V = 2.7 V

I

V = 3.6 V

I

3.30

3.25

3.20

3.15

3.10

3.05

3

3.4

3.3

V = 3.6 V

I

V = 1.8 V

I

V = 2.4 V

I

3.2

3.1

3.0

2.9

V = 1.8 V

I

V = 2.7 V

I

V = 2.4 V

I

1

10

100

1

10

100

1000

I

O

– Output Current – mA

I

O

– Output Current – mA

Figure 7

Figure 8

10

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TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

TYPICAL CHARACTERISTICS

TPS60200

OUTPUT VOLTAGE

vs

TPS60202

OUTPUT VOLTAGE

vs

INPUT VOLTAGE

3.4

3.3

3.2

3.35

3.30

1 mA

3.25

50 mA

3.1

3.0

100 mA

3.20

25 mA

50 mA

3.15

2.9

2.8

2.7

3.10

3.05

3.00

1.6

2.0

2.4

2.8

3.2

3.6

1.6

2.0

2.4

2.8

3.2

3.6

V – Input Voltage – V

I

V – Input Voltage – V

I

Figure 9

Figure 10

TPS60200

OUTPUT VOLTAGE RIPPLE

vs

TIME

3.38

3.36

3.38

3.36

V = 2.4 V

I

V = 2.4 V

I

O

= 10 mA

I

O

= 1 mA

3.34

3.32

3.30

3.28

3.26

3.34

3.32

3.30

3.28

3.26

3.24

3.22

3.24

3.22

0

1

2

3

4

5

6

7

8

9

10

0

5

10 15 20 25 30 35 40 45 50

t – Time – µs

Figure 11

Figure 12

11

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

TYPICAL CHARACTERISTICS

TPS60200

OUTPUT VOLTAGE RIPPLE

vs

TIME

START-UP TIMING

3.5

3

1400

1200

1000

800

600

400

200

0

3.38

3.36

3.34

3.32

3.30

3.28

3.26

V = 2.4 V

I

V = 2.4 V

I

V

I

O

= 100 mA

O

2.5

2

I

1.5

1

EN

0.5

0

3.24

3.22

0

50 100 150 200 250 300 350 400 450 500

0

1

2

3

4

5

6

7

8

9

10

t – Time – µs

Figure 13

Figure 14

TPS60200

LOAD TRANSIENT RESPONSE

LINE TRANSIENT RESPONSE

V = 2.4 V

I

O

= 50 mA

3.30

3.28

3.26

3.24

3.32

3.30

3.28

3.26

2.8 V

100 mA

10 mA

2.2 V

0

50 100 150 200 250 300 350 400 450 500

0

1

2

3

4

5

6

7

8

9

10

t – Time – µs

t – Time – ms

Figure 15

Figure 16

12

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

TYPICAL CHARACTERISTICS

TPS60200

PEAK OUTPUT CURRENT

vs

INPUT VOLTAGE

350

300

250

200

150

100

50

0

1.6

2.0

2.4

2.8

3.2

3.6

V – Input Voltage – V

I

Figure 17

APPLICATION INFORMATION

capacitor selection

The TPS6020x devices require only four external capacitors to achieve a very low output voltage ripple. The

capacitor values are closely linked to the required output current. Low ESR (< 0.1 Ω) capacitors should be used

at input and output. In general, the transfer capacitors (C1 and C2) will be the smallest, a 1 µF value is

recommended for maximum load operation. With smaller capacitor values, the maximum possible load current

is reduced and the LinSkip threshold is lowered.

The input capacitor improves system efficiency by reducing the input impedance. It also stabilizes the input

current of the power source. The input capacitor should be chosen according to the power supply used and the

distance from the power source to the converter IC. C is recommended to be about two to four times as large

i

as the flying capacitors C1 and C2.

The output capacitor (C ) should be at minimum the size of the input capacitor. The minimum required

o

capacitance is 2.2 µF. Larger values will improve the load transient performance and will reduce the maximum

output ripple voltage.

Only ceramic capacitors are recommended for input, output, and flying capacitors. Depending on the material

used to manufacture them, ceramic capacitors might lose their capacitance over temperature and voltage.

Ceramic capacitors of type X7R or X5R material will keep their capacitance over temperature and voltage,

whereas Z5U or Y5V-type capacitors will decrease in capacitance. Table 2 lists recommended capacitor values.

13

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

APPLICATION INFORMATION

Table 2. Recommended Capacitor Values (Ceramic X5R and X7R)

FLYING

CAPACITORS,

C1/C2

INPUT

CAPACITOR,

OUTPUT

CAPACITOR,

OUTPUT VOLTAGE

RIPPLE IN LINEAR MODE,

OUTPUT VOLTAGE

RIPPLE IN SKIP MODE,

LOAD CURRENT,

I

LOAD

(mA)

C

V

(mV)

V

P-P

IN

OUT

P-P

(µF)

2.2

4.7

2.2

4.7

2.2

(µF)

2.2

4.7

10

(mV)

20

10

7

0–100

0–50

1

3

5

1

2.2

0.47

0.22

0.1

4.7

2.2

10

20

15

0–25

0–10

Table 3. Recommended Capacitor Types

MANUFACTURER

PART NUMBER

UMK212BJ104MG

EMK212BJ224MG

EMK212BJ474MG

LMK212BJ105KG

LMK212BJ225MG

EMK316BJ225KL

LMK316BJ475KL

JMK316BJ106ML

0805ZC105KAT2A

1206ZC225KAT2A

SIZE

0805

1206

0805

1206

CAPACITANCE

0.1 µF

TYPE

Taiyo Yuden

Ceramic

0.22 µF

0.47 µF

1 µF

2.2 µF

4.7 µF

10 µF

AVX

1 µF

2.2 µF

Table 4. Recommended Capacitor Manufacturers

MANUFACTURER

Taiyo Yuden

AVX

CAPACITOR TYPE

X7R/X5R ceramic

INTERNET SITE

http://www.t–yuden.com/

http://www.avxcorp.com/

14

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

APPLICATION INFORMATION

typical operating circuit TPS60200 and TPS60202

OUTPUT

3.3V, 100 mA

INPUT

1.6V to 3.6V

TPS60200

5

7

IN

OUT

C

2.2

o

R1

R2

C

i

F

R3

C2

µ

F

1

4

µ

2.2

LBI

10

6

LBO

C2+

Low Battery

Warning

C1+

C1

µ

3

9

8

1 F

C1–

EN

C2–

µ

1 F

GND

2

OFF/ON

OUTPUT

3.3V, 50 mA

INPUT

1.6V to 3.6V

TPS60202

5

7

IN

OUT

C

2.2 F

o

R1

C

i

F

R3

C2

µ

1

4

µ

2.2

LBI

10

6

LBO

C2+

R2

Low Battery

Warning

C1+

C1

3

9

8

µ

0.47

F

C1–

EN

C2–

µ

0.47 F

GND

2

OFF/ON

Figure 18. Typical Operating Circuit TPS60200 and TPS60202 With Low-Battery Detector

15

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

APPLICATION INFORMATION

typical operating circuit TPS60201 and TPS60203

OUTPUT

3.3V, 100 mA

INPUT

1.6V to 3.6V

TPS60201

5

7

IN

OUT

C

2.2 F

o

C

i

R1

C2

µ

2.2

F

10

6

PG

Power-Good

Signal

4

C1+

C2+

3

9

8

1

C1–

EN

C2–

µ

1

F

GND

1,2

OFF/ON

OUTPUT

3.3V, 50 mA

INPUT

1.6V to 3.6V

TPS60203

5

7

4

IN

OUT

C

2.2 F

o

C

i

R1

C2

µ

2.2

F

10

6

PG

Power-Good

Signal

C1+

C2+

C1

0.47 µF

3

9

8

C1–

EN

C2–

0.47 µF

GND

1,2

OFF/ON

Figure 19. Typical Operating Circuit TPS60201 and TPS60203 With Power-Good Detector

power dissipation

The power dissipated in the TPS6020x devices depends mainly on input voltage and output current and is

approximated by:

P

I

x 2 x V – V

for I

I

(5)

(DISS)

O

I

O

(Q)

O

By observing equation 5, it can be seen that the power dissipation is worst for highest input voltage V and

I

highest output current I . For an input voltage of 3.6 V and an output current of 100 mA the calculated power

O

dissipation P

is 390 mW. This is also the point where the charge pump operates with its lowest efficiency.

(DISS)

With the recommended maximum junction temperature of 125°C and an assumed maximum ambient operating

temperature of 85°C, the maximum allowed thermal resistance junction to ambient of the system can be

calculated.

T

J(MAX)

P

A

125°C 85°C

R

102°C W

(6)

JA(max)

390 mW

DISS(max)

16

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TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

APPLICATION INFORMATION

power dissipation (continued)

P

must be less than that allowed by the package rating. The thermal resistance junction to ambient of the

DISS

used 10-pin MSOP is 294°C/W for an unsoldered package. The thermal resistance junction to ambient with

the IC soldered to a printed circuit using a board layout as described in the application information section, the

R

is typically 200°C/W, which is higher than the maximum value calculated above. However in a battery

ΘJA

powered application, both V and T will typically be lower than the worst case ratings used in equation 6 , and

power dissipation should not be a problem in most applications.

I

A

layout and board space

Careful board layout is necessary due to the high transient currents and switching frequency of the converter.

All capacitors should be placed in close proximity to the device. A PCB layout proposal for a one-layer board

is given in Figure 22.

An evaluation module for the TPS60200 is available and can be ordered under product code

TPS60200EVM–145. The EVM uses the layout shown in Figure 22. All components including the pins are

shown. The EVM is built so that it can be connected to a 14-pin dual inline socket, therefore, the space needed

2

for the IC, the external parts, and 8 pins is 17.9 mm x 10.2 mm = 182.6 mm .

Figure 20. Recommended Component Placement and Board Layout

Table 5. Component Identification

IC1

C1, C2

C3

TPS60200

Flying capacitors

Input capacitors

C4

Output capacitors

C5

Stabilization capacitor for LBI

Resistive divider for LBI

Pullup resistor for LBO

Pullup resistor for EN

R1, R2

R3

R4

Capacitor C5 should be included if large line transients are expected. This capacitor suppresses toggling of the

LBO due to these line changes.

17

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

APPLICATION INFORMATION

device family products

Other charge pump dc-dc converters in this family are:

Table 6. Product Identification

PART NUMBER

TPS60100

TPS60101

TPS60110

TPS60111

TPS60120

TPS60121

TPS60122

TPS60123

TPS60130

TPS60131

TPS60132

TPS60133

TPS60140

TPS60141

DESCRIPTION

2-cell to regulated 3.3-V, 200-mA low-noise charge pump

2-cell to regulated 3.3-V, 100-mA low-noise charge pump

3-cell to regulated 5.0-V, 300-mA low-noise charge pump

3-cell to regulated 5.0-V, 150-mA low-noise charge pump

2-cell to regulated 3.3-V, 200-mA high efficiency charge pump with low battery comparator

2-cell to regulated 3.3-V, 200-mA high efficiency charge pump with power-good comparator

2-cell to regulated 3.3-V, 100-mA high efficiency charge pump with low battery comparator

2-cell to regulated 3.3-V, 100-mA high efficiency charge pump with power-good comparator

3-cell to regulated 5.0-V, 300-mA high efficiency charge pump with low battery comparator

3-cell to regulated 5.0-V, 300-mA high efficiency charge pump with power-good comparator

3-cell to regulated 5.0-V, 150-mA high efficiency charge pump with low battery comparator

3-cell to regulated 5.0-V, 150-mA high efficiency charge pump with power-good comparator

2-cell to regulated 5.0-V, 100-mA charge pump voltage tripler with low battery comparator

2-cell to regulated 5.0-V, 100-mA charge pump voltage tripler with power-good comparator

18

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TPS60200, TPS60201, TPS60202, TPS60203

REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP

LOW POWER DC/DC CONVERTERS

SLVS274 – MARCH 2000

MECHANICAL DATA

DGS (S-PDSO-G10)

PLASTIC SMALL-OUTLINE PACKAGE

0,27

0,17

M

0,25

0,50

10

6

0,15 NOM

3,05

2,95

4,98

4,78

Gage Plane

0,25

0°–6°

1

5

0,69

0,41

3,05

2,95

Seating Plane

0,10

0,15

0,05

1,07 MAX

4073272/A 03/98

NOTES: A. All linear dimensions are in millimeters.

B. This drawing is subject to change without notice.

C. Body dimensions do not include mold flash or protrusion.

19

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

IMPORTANT NOTICE

Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue

any product or service without notice, and advise customers to obtain the latest version of relevant information

to verify, before placing orders, that information being relied on is current and complete. All products are sold

subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those

pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in

accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent

TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily

performed, except those mandated by government requirements.

Customers are responsible for their applications using TI components.

In order to minimize risks associated with the customer’s applications, adequate design and operating

safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent

that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other

intellectual property right of TI covering or relating to any combination, machine, or process in which such

semiconductor products or services might be or are used. TI’s publication of information regarding any third

party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.


型号：	TPS60201DGS
厂家：	TEXAS INSTRUMENTS
描述：	REGULATED 3.3 V, 100-mA LOW-RIPPLE CHARGE PUMP LOW POWER DC/DC CONVERTERS 调节3.3 V ， 100 mA的低纹波充电泵低功耗DC / DC转换器转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管泵 PC
文件：	总20页 (文件大小：436K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TPS60201DGS [TI]

相关型号：

TPS60201DGSG4

TPS60201DGSR

TPS60201DGSRG4

TPS60202

TPS60202DGS

TPS60202DGSG4

TPS60202DGSR

TPS60202DGSRG4

TPS60203

TPS60203DGS

TPS60203DGSR

TPS60203DGSRG4