SP6690ER/TR データシートの表示（PDF） - Signal Processing Technologies

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SP6690ER/TR

Micro Power Boost Regulator Series White LED Driver

Signal Processing Technologies 

®

SP6690

Micro Power Boost Regulator

Series White LED Driver

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

NC 1

FB 2

NC 3

SW 4

SP6690

8 Pin DFN

8 NC

7 SHDN

6 VIN

5 GND

■ High Efficiency: Greater Than 75%

■ Low Quiescent Current: 20µA

Now Available in Lead Free Packaging

■ Ultra Low Shutdown Current: 10nA

■ Single Battery Cell Operation

APPLICATIONS

■ Programmable Output Voltage

■ White LED Driver

■ 1Ω switch (250mV at 250mA)

■ 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

construction of a complete regulator occupying < 0.2 in2 board space.

2.7V to 4.2V

10µH

L1

4.7µF

VIN

SW

®

SP6690

SHDN

FB

GND

C1

TYPICAL APPLICATION CIRCUIT

D1

C2

2.2 µF

Rb

Date: 05/25/04

SP6690 Micro Power Boost Regualtor, Series White LED Driver

1

© Copyright 2004 Sipex Corporation

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