AP8800

350mA LED Step-Down Converter

AP8800 Rev. 1

2 of 11

MARCH 2009

www.diodes.com

(1) SOP-8L

(2) MSOP-8L

1

2

3

45

6

7

8

( Top View )

RSVD

GND

SW

NC

CTRL

SET

NC

AP8800

1

2

3

45

6

7

8

( Top View )

RSVD

GND

SW

NC

CTRL

SET

NC

AP8800

(3) DFN3030-10

( Top View )

1

2

5

3

6

8

7

10

9

GND

RSVD

NC

CTRL

SW

NC

NC

SET

NC

AP8800

4

Pin Name

Description

SW

Switch Pin. Connect inductor/freewheeling diode here. Minimize trace area at this pin to reduce

EMI.

GND

GND pin

SET

Set Nominal Output Current Pin. To configure the output current of the device.

CTRL

Dimming and On/Off Control Input. Input voltage of 0.2V or lower forces the device into low

current standby mode and shut off the output.

A PWM signal allows the output current to be

adjusted above or below the level set by the resistor connected to SET input pin.

The input impedance is about 200k

Ω, and if the pin is left open V

Input Supply Pin. Must be locally bypassed.

RSVD

Reserved. Normally connected to Ground

NC

No Connection.

Pin Assignments

Pin Descriptions