Tiny switching regulator boosts performance

The 2-MHz 500-mA MCP1603 switching regulator provides adjustable and fixed output voltages, undervoltage lockout, and automatic PWM to PFM mode transition in TSOT-23 and DFN packages. The MCP1603 is ideal for extending battery life and reducing heat dissipation in a variety of portable, handheld electronic devices.

With an input voltage range of 5.5 to 2.7 V and either an adjustable output voltage range of 0.8 to 4.5 V or a fixed output voltage range of 1.2 to 3.3 V, the MCP1603 switcher covers the entire li-ion, Li-polymer, NiCd, and NiMH voltage ranges. The switcher also features a quiescent current of 45 µA, a standby current of only 100 nA, and an efficiency of 95% (From $0.88 ea/10,000; MCP1603EV evaluation board, $25 each—available now.)

Microchip Technology , Chandler , AZ
Reader/Literature Inquiries 888-MCU-MCHP
http://www.microchip.com/MCP1603