TPS2149

TPS2159

SLVS401 – AUGUST 2001

6

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TPS2149 functional block diagram

3.3 V / 200 mA

LDO

CS

Driver

Charge

Pump

Current

Limit

Thermal

Sense

CS

Driver

Thermal

Sense

Current

Limit

LDO_OUT

OUT1

OC

OUT2

VIN

EN1

EN2

GND

Terminal Functions

TERMINAL

NAME

NO.

I/O

DESCRIPTION

NAME

TPS2149

TPS2159

EN1

8

I

Logic level enable to transfer power to OUT1

EN1

8

EN2

7

I

Logic level enable to transfer power to OUT2

EN2

7

GND

5

5

Ground

LDO_OUT

3

3

O

LDO output

OC

6

6

O

Overcurrent status flag for OUT1 and OUT2. Open drain output.

OUT1

1

1

O

Switch 1 output

OUT2

4

4

Switch 2 output

VIN

2

2

I

Input for LDO switch 1 and switch 2; device supply voltage