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

3

POST OFFICE BOX 655303

TPS60310 and TPS60311 functional block diagram

CP1

2x (Doubler)

Charge Pump

Oscillator

Control

C1F

C1+

C1–

CP2

1.5x/2x

Charge Pump

Reg

_

+

_

+

Vref

_

+

C2F

C2+

C2–

PG

OUT1

OUT2

GND

SNOOZE

VIN

(Push-Pull Output

for TPS60312 and

TPS60313)

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

C1+

4

Positive terminal of the flying capacitor C1F

C1–

2

Negative terminal of the flying capacitor C1F

C2+

7

Positive terminal of the flying capacitor C2F

C2–

8

Negative terminal of the flying capacitor C2F

GND

9

GROUND

OUT1

5

O

2

× VIN power output. Bypass OUT1 to GND with the output filter capacitor C(OUT1).

OUT2

6

O

Regulated 3.3-V power output (TPS60310, TPS60312) or 3-V power output (TPS60311, TPS60313), respectively

Bypass OUT2 to GND with the output filter capacitor C(OUT2).

PG

10

O

Power good detector output. As soon as the voltage on OUT2 reaches about 98% of its nominal value this pin goes

high.

Open drain output on TPS60310 and TPS60311. A pullup resistor should be connected between PG and OUT1 or

OUT2.

Push-pull output stage on TPS60312 and TPS60313

SNOOZE

1

I

Snooze mode enable input

– SNOOZE = Low enables the snooze mode at low output current.

– SNOOZE = High disables the snooze mode.

VIN

3

I

Supply input. Bypass VIN to GND with a ≥ 1-µF capacitor.