SP6651A High Efficiency 800mA Synchronous Buck Regulator

SP6651A High Efficiency 800mA Synchronous Buck Regulator

The SP6651A is a 800mA synchronous buck regulator which is ideal for portable applications that use a Li-Ion or 3 cell alkaline/NiCD/NiMH input. The SP6651A’s proprietary control loop, 20µA light load quiescent current, and 0.3Ω power switches provide excellent efficiency across a wide range of outp.

Features

■ DFN Package (3mm x 3mm)
■ Ultra-low 20µA Quiescent Current
■ 98% Efficiency Possible
■ 800mA Output Current
■ 2.7V to 5.5V Input Voltage Range
■ Output Adjustable Down to 1.0V
■ No External FET’s Required
■ 1.25A Inductor Peak Current Limit
■ 100% Duty Ratio Low Dropout Operation
■ 80µA Light Load Quiescent Current in Dropout
■ Over Temperature Protection
■ Logic Shutdown Control
■ Programmable UVLO and Adaptive Battery Low Output PV IN V IN BLON D1 D0 1 2 3 4 5 10 LX SP6651A 10 Pin DFN 9 PGND 8 GND 7 VOUT 6 FB Now Available in Lead Free Packaging APPLICATIONS
■ PDA's
■ DSC's
■ MP3 Pla.