TPS61072DDCR

具有600mA开关90 ％效率同步升压转换器 90% EFFICIENT SYNCHRONOUS BOOST CONVERTER WITH 600-mA SWITCH

DESCRIPON

The TPS6107x devices provide a power supply solution for products powered by either a one-cell, two-cell, or three-cell alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery. Output currents can go as high as 75 mA while using a single-cell alkaline, and discharge it down to 0.9 V. It can also be used for generating 5 V at 200 mA from a 3.3 V rail or a Li-ion battery. The boost converter is based on a fixed frequency, pulse-width-modulation PWM controller using a synchronous rectifier to obtain maximum efficiency.

FEATURES

• 90% Efficient Synchronous Boost Converter

– 75-mA Output Current at 3.3 V From 0.9-V Input

– 150-mA Output Current at 3.3 V From 1.8-V Input

• Device Quiescent Current: 19 µA Typ

• Input Voltage Range: 0.9 V to 5.5 V

• Adjustable Output Voltage Up to 5.5 V

• Power-Save Mode Version Available for Improved Efficiency at Low Output Power

• Load Disconnect During Shutdown

• Overtemperature Protection

• Small 6-Pin Thin SOT23 Package

APPLICATIONS

• All One-Cell, Two-Cell, and Three-Cell Alkaline, NiCd or NiMH or Single-Cell Li Battery-Powered Products

• Portable Audio Players

• PDAs

• Cellular Phones

• Personal Medical Products

• White LED Lighting