ACT6311

- 2 -

www.active-semi.com

Copyright © 2011 Active-Semi, Inc.

Rev 3, 22-Feb-11

ORDERING INFORMATION

PIN CONFIGURATION

PART NUMBER

TEMPERATURE RANGE

PACKAGE

PINS

TOP MARK

PACKING

ACT6311UC-T

-40°C to 85°C

SOT23-5

5

YCXB

TAPE & REEL

PIN DESCRIPTION

PIN NUMBER

PIN NAME

PIN DESCRIPTION

1

SW

Switch Output. Connect this pin to the inductor and the Schottky diode. To reduce

EMI, minimize the PCB trace path between this pin and the input bypass capacitor.

2

G

Ground.

3

FB

Feedback Input. This pin is referenced to 1.24V

4

SHDN

Shutdown Control. Connect to a logic high to enable the device. Connect to a

logic low to disable the device. Never leave the pin unconnected.

5

IN

Supply Input. Bypass to G with a capacitor 1µF capacitor or higher.

Figure 2: Application as White LED Drive

1

2

3

5

4

IN

SHDN

SW

G

FB

SOT23-5

ACT6311

UC

G