RT9012

Preliminary

2

DS9012-06 August 2007

www.richtek.com

Functional Pin Description

Pin No.

Pin Name

Pin Function

1

VIN

Supply Input.

2

EN1

Chip Enable1 (Active High).

3

EN2

Chip Enable2 (Active High).

4

SET

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

5

GND

Common Ground.

6

POR

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

under-voltage condition on regulator 2.

7

VOUT2

Channel 2 Output Voltage.

8

VOUT1

Channel 1 Output Voltage.

Exposed Pad (9) GND

The exposed pad must be soldered to a large PCB and connected to GND

for maximum power dissipation.

Typical Application Circuit

Code

C

F

W

G

D

Y

H

E

J

K

T

Voltage

1.2

1.5

1.6

1.8

1.85

1.9

2

2.1

2.5

2.6

2.65

Code

L

M

N

V

P

Q

R

S

--

--

--

Voltage

2.7

2.8

2.85

2.9

3

3.1

3.2

3.3

--

--

--

Available Voltage Version

EN1

EN2

VOUT2

VOUT1

RT9012

GND

VIN

1uF

V

OUT1

1uF

V

OUT2

1uF

V

IN

POR

SET

Chip Enable

C

DELAY

100K

C

IN

C

OUT1

C

OUT2