Copyright

© ANPEC Electronics Corp.

Rev. A.3 - Jul., 2008

APW7071

www.anpec.com.tw

1

ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise

customers to obtain the latest version of relevant information to verify before placing orders.

Step-Up Converter for 4 Series White LEDs Driver

•

2.5 V to 6V Input Voltage Range

•

400mA Internal Switch Current

•

Up to 1MHz Switching Frequency

•

70

µA Typical No Load Quiescent Current

•

0.1

µA Typical Shutdown Current

•

Internal Soft-Start

•

Up to 87% Efficiency

•

Operating Output Capacitor Down to 0.1

µF

•

Over Voltage Protection Included

•

Lead Free and Green Devices Available

(RoHS Compliant)

Features

General Description

The APW7071 is a high frequency step-up DC/DC con-

verter in a small 6-lead SOT-23 package specially designed

to drive white LEDs with a constant current. The device

can drive up to 4 LEDs in series from one Li-Ion cell. The

APW7071 is ideal for LCD panels requiring low current

and high efficiency as well as white LED applications for

cellular phone back-lighting.

Applications

•

Cellar Phones White LED Back Light

•

PDAs, Handheld Computers

•

Digital Still Cameras

•

MP3 Players

•

GPS Receivers

Pin Configuration

Ordering and Marking Information

Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which

are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020C for

MSL classification at lead-free peak reflow temperature. ANPEC defines “Green” to mean lead-free (RoHS compliant) and halogen

free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by

weight).

SOT-23-6 (Top View)

SW

GND

V IN

SHDN

FB

1

2

3

4

5

OVP

6

APW7071

Package Code

C : SOT-23-6

Operating Ambient Temperature Range

Handling Code

TR : Tape & Reel

Assembly Material

L : Lead Free Device

G : Halogen and Lead Free Device

Handling Code

Temperature Range

Package Code

APW7071C :

W71X

X - Date Code

Assembly Material