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 2007 Semtech Corp.

www.semtech.com

SC2603A

POWER MANAGEMENT

Pin Configurations

Ordering Information

TOP VIEW

Notes:

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

contains 3000 devices.

(2) Lead free product. This product is fully WEEE

and RoHS compliant.

Part Number

Package

SOT23-6

SC2603AEVB

Evaluation Board

Pin

Pin Name

Pin Function

1

FB

Error amplifier inverted input

2

GND

Device ground

3

EN/SS

Enable / Soft Start Pin

4

GATE

PWM gate driver output

5

VIN

Device input voltage

6

CS

Current Sense input

Pin Descriptions

(6 Pin SOT-23)

Block Diagram

Figure 2: SC2603A Function Diagram

3

1

GND

5

CS

6

4

VIN

2

EN/SS

FB

GATE

VIN

FB

GATE

CS

UVLO

GND

PWM

EN/SS

70mV

Current

Limit

VIN

UV

S

Q

R

OSCILLATOR

1.25V

REF

1.25V

REF

25K