RT9712

2

DS9712-04 November 2012

www.richtek.com

©

Copyright 2012 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Functional Pin Description

Typical Application Circuit

Note : R1, R2 : Pull-Up Resistance (10k to 100k)

Pin No.

Pin Name

Pin Function

RT9712A/C RT9712B/D

1

1

GND

Ground.

2

2

VIN

Input Voltage.

--

3

EN1

Chip Enable (Active Low) turns on power switch in VOUT1.

--

4

EN2

Chip Enable (Active Low) turns on power switch in VOUT2.

3

--

EN1

Chip Enable (Active High) turns on power switch in VOUT1.

4

--

EN2

Chip Enable (Active High) turns on power switch in VOUT2.

5

5

FLG2

Over current or over temperature status output, open-drain output, active

low, in VOUT2.

6

6

VOUT2

Power-Switch Output, in VOUT2.

7

7

VOUT1

Power-Switch Output, in VOUT1.

8

8

FLG1

Over current or over temperature status output,, open-drain output, active

low, in VOUT1.

RT9712A/B/C/D

GND

VIN

VOUT2

VOUT1

Load

Load

Supply Voltage

2.7V to 5.5V

2

3

4

5

8

7

6

1

FLG2

FLG1

0.1uF

0.1uF

0.1uF

R2

R1

RT9712A/C

Chip Enable

EN1/EN1

EN2/EN2

RT9712B/D

Chip Enable

22uF

22uF