SP6690

® SP6690 Micro Power Boost Regulator Series White LED Driver FEATURES ■ Miniature Package: 8 Pin DFN, 5 Pin TSOT NC 1 8 NC or 5 Pin SOT-23 SP6690 7 SHDN FB 2 ■ High Output Voltage: Up to 30V 6 VIN NC 3 8 Pin DFN ■ Optimized for Single Supply, 2.7V - 4.2V Applications 5 GND SW 4 ■ Operated Down to 1V ■ High Efficiency: Greater Than 75% Now Available in Lead Free Packaging ■ Low Quiescent Current: 20µA ■ Ultra Low Shutdown Current: 10nA ■ Single Battery Cell Operation APPLICATIONS ■ Programmable Output Voltage ■ White LED Driver ■ High Voltage Bias ■ 1Ω switch (250mV at 250mA) ■ 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. TYPICAL APPLICATION CIRCUIT 10µH 2.7V to 4.2V L1 D1 SW ® VIN SP6690 SHDN 4.7µF GND C1 FB C2 2.2 µF Rb Date: 05/25/04 SP6690 Micro Power Boost Regualtor, Series White LED Driver © Copyright 2004 Sipex Corporation 1 ABSOLUTE MAXIMUM RATINGS VIN ....................................................................... 15V SW Voltage ................................................