SP6690 Datasheet, PDF (1/16 Pages) Sipex Corporation – Micro Power Boost Regulator Series White LED Driver

®
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
V_IN
SW
®
SP6690
SHDN
FB
GND
C1
TYPICAL APPLICATION CIRCUIT
D1
C2
2.2 µF
R_b
Date: 05/25/04
SP6690 Micro Power Boost Regualtor, Series White LED Driver
1
© Copyright 2004 Sipex Corporation