Document Number: 73193

S-71822-Rev. C, 03-Sep-07

www.vishay.com

3

Vishay Siliconix

SiP12401

PIN CONFIGURATION AND TRUTH TABLE

PIN FUNCTIONS

XSHD (Pin 1)

XSHD is the logic controlled shutdown input pin. When

XSHD is low, the IC is shutdown and it’s quiescent current is

less than 1 µA. When XSHD is high, the IC is working in

normal operation.

FB (Pin 3)

FB is the feedback pin of the output voltage via resistor

divider. FB is about 0.3 V and its difference from 0.3 V

reference voltage is amplified by the error amplifier.

AGND (Pin 4)

AGND is the pin for ground of controlling circuit.

PGND (Pin 5)

PGND is the pin for ground of the internal power MOS driver.

EXT (Pin 6)

EXT is the output pin of internal driver. It’s connected to the

gate of external power MOSFET.

FB

AGND

2

3

6

5

4

1

PowerPAK MLP33-6

Top View

XSHD

PGND

EXT

ORDERING INFORMATION

Part Number

Temperature Range

Marking

SiP12401DMP-T1-E3

- 40 to 85 °C

2401

PIN DESCRIPTION

Pin Number

Name

Function

1

XSDH

Logic Controlled Shutdown Input, XSHD = High: Normal Operation, XSHD = Low: Shutdown

2

Battery Input Voltage

3

FB

Output Voltage Feedback Pin

4

AGND

Signal Ground

5

PGND

Power Ground

6

EXT

Drive Pin for External Power MOS