TPS60310, TPS60311, TPS60312, TPS60313

SINGLE-CELL TO 3-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP WITH SNOOZE MODE

SLVS362A – MAY 2001 – REVISED AUGUST 2001

1

POST OFFICE BOX 655303

features

up to 20-mA Output Current From a

0.9-V to 1.8-V Input Voltage Range

90%) Over Wide Output Current Range,

Optimized for 1.2-V Battery Voltage

Low-Output Current

Push-Pull Power Good Output

Required

applications

Instruments)

Microcontroller

description

The TPS6031X step-up, regulated charge pumps

generate a 3-V

±4% or 3.3-V ±4% output voltage

from a 0.9-V to 1.8-V input voltage (one alkaline,

NiCd, or NiMH battery).

Only five small 1-

µF ceramic capacitors are required to build a complete high-efficiency dc/dc charge pump

converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects

between a 3x or 4x conversion mode.

typical application circuit

24

8

7

C1F

1

µF

C2F

1

µF

OUT1

C1–

C1+

C2–

C2+

5

+

C(OUT1)

1

µF

2

× IN

Max 40 mA

OUT2

6

+

C(OUT2)

1

µF

3.3 V

±4%

Max 20 mA

R

10

PG

VIN

3

CIN

1

µF

INPUT

0.9 V to 1.8 V

1

SNOOZE

ON/OFF

GND

9

TPS60310

+

0

10

20

30

40

50

60

70

80

90

0.001

0.01

0.1

1

EFFICIENCY

vs

OUTPUT CURRENT (OUT2)

10

100

Snooze Mode

Normal Mode

IO – Output Current (OUT2) – mA

VI = 1.3 V

Snooze mode improves efficiency at an output current

in the range of 1

µA to 100 µA.

Copyright

 2001, Texas Instruments Incorporated

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.

ACTUAL SIZE

3,05 mm x 4,98 mm

1

2

3

4

5

10

9

8

7

6

SNOOZE

C1–

C1+

OUT1

PG

GND

C2–

C2+

OUT2

DGS PACKAGES

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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.