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 2007 Semtech Corp.

www.semtech.com

POWER MANAGEMENT

SC1116

Evaluation Board

Top View

Top Layer

Evaluation Board Schematic

Notes:

(1) Values used for optional compensation are 1K and 4.7nF typical.

(2) When using 3V as Vcc, use of low threshold FETs is a must.

REF

3

DRVL

4

VCC

1

FB

5

GND

2

DRVH

6

U1

SC1116

C3

0.1

C2

0.1

C4

4.7nF

C5

4.7nF

C6

47uF

R1

1k 0.5%

R2

1k 0.5%

R3

1k

R4

1k

Q1

IR3714

Q2

IR3714

C1

22uF

VTT=1.25Vtyp

Vcc=3 to 15V

VDDQ=2.5Vtyp

GND