Data Sheet

3

Apr. 2009 Rev. 1. 3

BCD Semiconductor Manufacturing Limited

WHITE LED STEP-UP CONVERTER

AP3031

Q1

Σ

A2

A1

1MHz

OSCILLATOR

RAMP

GENERATOR

DRIVER

1.25 V

COMPARATOR

200 mV

SOFT

START

V

IN

CTRL

FB

GND

SW

STANDBY

OV

To Control

Logic

CONTROL

LOGIC

OVER

TEMPERATURE

DETECTOR

OV

Functional Block Diagram

Figure 3. Functional Block Diagram of AP3031

Circuit Type

Package

K: SOT-23-6

AP3031

-

Blank: Tube

Ordering Information

Package

Temperature

Range

Part Number

Marking ID

Packing Type

SOT-23-6

AP3031KTR-G1

GEC

Tape & Reel

TSOT-23-6

AP3031KTTR-G1

L1E

Tape & Reel

SOIC-8

AP3031M-G1

3031M-G1

Tube

AP3031MTR-G1

3031M-G1

Tape & Reel

BCD Semiconductor's Pb-free products, as designated with "G1" suffix in the part number, are RoHS compliant and green.

G1: Green

1 (4)

2

3 (1)

4 (8)

5 (7)

6 (5)

A (B)

A SOT-23-6/TSOT-23-6

B SOIC-8

(2, 3, 6)

KT: TSOT-23-6

M: SOIC-8

TR: Tape and Reel