TPS60300, TPS60301, TPS60302, TPS60303

SINGLE-CELL TO 3.0-V/3.3-V, 20-mA DUAL OUTPUT,

HIGH-EFFICIENCY CHARGE PUMP

SLVS302A – DECEMBER 2000 – REVISED MARCH 2001

3

POST OFFICE BOX 655303

TPS60300 and TPS60301 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

EN

VIN

(Push-Pull Output

for TPS60302 and

TPS60303)

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

EN

1

I

Device-enable input

– EN = Low disables the device. Output and input are isolated in shutdown mode.

– EN = High enables the device.

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 (TPS60300, TPS60302) or 3-V power output (TPS60301, TPS60303), 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 TPS60300 and TPS60301. A pullup resistor should be connected between PG and OUT1 or

OUT2.

Push-pull output stage on TPS60302 and TPS60303

VIN

3

I

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