WHITE LED STEP-UP CONVERTER

AP3009

Data Sheet

2

Apr. 2007 Rev. 1. 4

BCD Semiconductor Manufacturing Limited

Figure 2. Pin Configuration of AP3009 (Top View)

Pin Configuration

Pin Description

Pin Number

Pin Name

Function

Output Pin. Connected to the cathode of internal schottky diode

2

GND

Ground Pin

3

FB

Voltage Feedback. Reference voltage is 200mV

4

CTRL

Shutdown and Dimming Pin. Connect to 1.8V or higher to enable device; Connect to 50mV or

less to disable device; Connect to a voltage between 1.8V and 50mV to achieve linear dim-

ming

Input Supply Pin. Must be locally bypassed

6

SW

Switch Pin. Connect external inductor

(SOT-23-6)

GND

FB

SW

CTRL

K Package

2

1

34

5

6