WHITE LED STEP-UP CONVERTER

AP3019

Preliminary Datasheet

2

Apr. 2007 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

Figure 2. Pin Configuration of AP3019 (Top View)

Pin Configuration

Pin Description

Pin Number

Pin Name

Function

1

SW

Switch Pin. Connect external inductor

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

Output Pin. Connected to the cathode of internal schottky diode

Input Supply Pin. Must be locally bypassed

(SOT-23-6)

GND

FB

SW

CTRL

K Package

2

1

34

5

6