RT9010

2

DS9010-03 August 2007

www.richtek.com

Functional Pin Description

Function Block Diagram

Pin No.

Pin Name

Pin Function

1

VOUT

Output Voltage.

2

GND

Common Ground.

3

POR

Power-On Reset Output : Open-drain output. Active low indicates an

output under voltage condition on regulator.

4

SET

Delay Set Input. Connect external capacitor to GND to set the internal

delay.

5

EN

Chip Enable (Active High).

6

VIN

Supply Input Voltage.

Typical Application Circuit

EN

VOUT

RT9010

GND

VIN

1uF

V

OUT

1uF

V

IN

POR

Chip Enable

100K

SET

C

DELAY

42

3

5

6

1

POR

EN

Current Limit

and

Thermal

Protection

MOS Driver

+

VOUT

Shutdown

and

Logic Control

VIN

Error

Amplifier

GND

POR & Delay

SET

0.2uA