TPS79718

TPS79730

TPS79733

SLVS332B – MARCH 2001 – REVISED JUNE 2001

4

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functional block diagram

_

+

Delay

VIN

Current

Sense

R1

R2

VIN

GND

VOUT

PG

ILIM

Bandgap

Reference

Vref = 1.235 V

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

I/O

DESCRIPTION

GND

2

Ground

NC

3

No connection

OUT

5

O

The OUT terminal provides the regulated output voltage of the device.

PG

1

O

The PG terminal for the fixed voltage option devices is an open drain, active-high output that indicates the status

of VO (output of the LDO). When VO exceeds approximately 90% of the regulated voltage, PG goes to a high

impedance state. It goes to a low-impedance state when VO falls below approximately 90% (i.e. overload condition)

of the regulated voltage. The open drain output of the PG terminal requires a pullup resistor.

IN

4

I

The IN terminal is the power supply input to the device.