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Date: 05/25/04

SP6690 Micro Power Boost Regualtor, Series White LED Driver

© Copyright 2004 Sipex Corporation

SP6690

FEATURES

■ Miniature Package: 8 Pin DFN, 5 Pin TSOT

or 5 Pin SOT-23

■ High Output Voltage: Up to 30V

■ Optimized for Single Supply,

2.7V - 4.2V Applications

■ Operated Down to 1V

■ High Efficiency: Greater Than 75%

■ Low Quiescent Current: 20µA

■ Ultra Low Shutdown Current: 10nA

■ Single Battery Cell Operation

■ Programmable Output Voltage

■ 1Ω switch (250mV at 250mA)

Micro Power Boost Regulator

Series White LED Driver

APPLICATIONS

■ White LED Driver

■ High Voltage Bias

■ Digital Cameras

■ Cell Phone

■ Battery Backup

■ Handheld Computers

DESCRIPTION

The SP6690 is a micro power boost regulator that is specifically designed for powering series

configuration white LED. The part utilizes fixed off time architecture and consumes only 10nA

quiescent current in shutdown. Low voltage operation, down to 1V, fully utilizes maximal battery

life. The SP6690 is offered in a 8 pin DFN, 5 pin TSOT or 5 pin SOT-23 package and enables the

®

TYPICAL APPLICATION CIRCUIT

V

IN

SW

GND

SHDN

FB

10µH

2.2 µF

4.7µF

2.7V to 4.2V

®

R

b

SP6690

D1

L1

C1

C2

SP6690

8 Pin DFN

8

7

6

5

1

2

3

4

NC

FB

NC

SW

NC

SHDN

GND

Now Available in Lead Free Packaging