General Description

The MIC5207 is an efficient linear voltage regulator with ultra-low-noise output, very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low ground current (720μA at 100mA output). The MIC5207 offers better than 3 initial accuracy.

Designed especially for hand-held, battery-powered devices, the MIC5207 includes a CMOS or TTL compatible enable/shutdown control input. When in shutdown, power consumption drops nearly to zero.

Key MIC5207 features include a reference bypass pin to improve its already low-noise performance, reversed battery protection, current limiting, and overtemperature shutdown.

Features

? Ultra-low-noise output

? High output voltage accuracy

? Guaranteed 180mA output

? Low quiescent current

? Low dropout voltage

? Extremely tight load and line regulation

? Very low temperature coefficient

? Current and thermal limiting

? Reversed-battery protection

? “Zero” off-mode current

? Logic-controlled electronic enable

Applications

? Cellular telephones

? Laptop, notebook, and palmtop computers

? Battery-powered equipment

? PCMCIA VCC and VPP regulation/switching

? Consumer/personal electronics

? SMPS post-regulator/dc-to-dc modules

? High-efficiency linear power supplies