SC1531CSTR 查看數據表（PDF） - Semtech Corporation

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SC1531CSTR

200mA & 500mA SmartLDOs™

Semtech Corporation 

POWER MANAGEMENT

Pin Configuration

(TOP VIEW)

(SOIC-8)

Block Diagram

SC1531(A)

Ordering Information

Part Number(1) Output Current

Package

SC1531CS.TR

200mA

SO-8

SC1531ACS.TR

250mA

SO-8

Note:

(1) Only available in tape and reel packaging. A reel

contains 2500 devices.

Pin Descriptions

Pin

Pin Name Pin Function

1

VIN

This is the main input supply for the IC, nominally 5V.

2

NC

No connection.

3

VAUX This is the auxiliary input supply, nominally 3.3V. Connection of this pin is optional, and will slightly

improve the turn-on time of the external MOSFET. Leave floating if not used.

4

GND Logic and power ground.

5

NC

No connection.

6

SENSE Sense pin for VO. Connect to VO at the load to minimize voltage drop across PCB traces. If

remote sense function is not required, connect directly to pin 7.

7

VO

LDO 3.3V output.

8

DR

Driver output for external P-channel MOSFET pass element.

ã 2000 Semtech Corp.

5

www.semtech.com

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