General Description

The MIC5205 is anefficient linear voltage regulatorwith ultra low-noise output, very low dropout voltage (typically 17mV at light loads and 165mV at 150mA), and very low ground current (600⎧A at100mA output). The MIC5205 offers better than 1 initialaccuracy.

Features

• Ultra-low-noise output

• High output voltage accuracy

• Guaranteed 150mA output

• Low quiescent current

• Low dropout voltage

• Extremely tight load and line regulation

• Very low temperature coefficient

• Current and thermal limiting

• Reverse-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