RT9014/A

Preliminary

2

DS9014/A-08 August 2007

www.richtek.com

Functional Pin Description

Pin No.

RT9014-□□PQW

RT9014A-□□

Pin

Name

Pin Function

1

1

VIN

Supply Input.

2

--

EN

Chip Enable (Active High).

--

2

EN1

Chip Enable 1 (Active High).

--

3

EN2

Chip Enable 2 (Active High).

3

--

NC

No Internal Connection Pin.

4

4

SW

Active high signal drives open-drain N-MOSFET.

Note that this pin is high impedance. There should be a pull low

100k

Ω resistor connected to GND when the control signal is

floating.

5

5

SET

Delay Set Input: Connect external capacitor to GND to set the

internal delay for the POR output. When left open, there is no

delay. This pin cannot be grounded.

6

6

GND

Common Ground.

7

7

DRV

Open-Drain Output: Capable of sinking 150mA.

8

8

POR

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

an output under-voltage condition on regulator 2.

9

9

VOUT2 Channel 2 Output Voltage

10

10

VOUT1 Channel 1 Output Voltage

Exposed Pad (11) Exposed Pad (11) GND

The exposed pad must be soldered to a large PCB and

connected to GND for maximum power dissipation.

Typical Application Circuit

EN

SW

VOUT2

VOUT1

RT9014

GND

VIN

1uF

V

OUT1

1uF

V

OUT2

1uF

V

IN

POR

DRV

SET

Chip Enable

DRV Enable

C

DELAY

100K

100k

C

IN

C

OUT1

C

OUT2

EN1

SW

VOUT2

VOUT1

RT9014A

GND

VIN

1uF

V

OUT1

1uF

V

OUT2

1uF

V

IN

POR

DRV

SET

Chip Enable

DRV Enable

C

DELAY

100K

100k

C

IN

C

OUT1

C

OUT2

EN2

Marking Information

For marking information, contact our sales representative directly or through a Richtek distributor located in your area,

otherwise visit our website for detail.