SP6655 High Efficiency 400mA Synchronous Buck Regulator

SP6655 High Efficiency 400mA Synchronous Buck Regulator

The SP6655 is a 400mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6655’s proprietary control loop, 20µA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of output.

Features

■ 98% Efficiency Possible
■ Small 10-Pin DFN Package
■ Ultra-low 20µA Quiescent Current
■ 625mA Inductor Peak Current Limit
■ Guaranteed Minimum 400mA Output Current
■ 2.7V to 5.5V Input Voltage Range
■ Output Adjustable Down to 1.0V
■ 100% Duty Ratio Low Dropout Operation
■ 80µA Light Load Quiescent Current in Dropout PVIN VIN BLON D1 D0 1 2 3 4 5 10 SP6655 10 Pin DFN LX 9 P GND 8 GND 7 V OUT 6 FB Now Available in Lead Free Packaging APPLICATIONS
■ Cell Phones
■ PDA's
■ DSC's
■ MP3 Players
■ USB Devices
■ Point of Use Power DESCRIPTION The SP6655 is a 400mA synchronous buck regulator .