General Description

The MIC5256 is an efficient, precise CMOS voltage regulator. It offers better than 1 initial accuracy, extremely low-dropout voltage (typically 135mV at 150mA) and low ground current (typically 90µA) over load. The MIC5256 features an error flag that indicates an output fault condition such as overcurrent, thermal shutdown and dropout.

Features

• Input voltage range: 2.7V to 6.0V

• Thin SOT package: 1mm height

• Error flag indicates fault condition

• Stable with ceramic output capacitor

• Ultralow dropout: 135mV @ 150mA

• High output accuracy:

– 1.0 initial accuracy

– 2.0 over temperature

• Low quiescent current:90µA

• Tight load and line regulation

• Thermal-shutdown and current-limit protection

• “Zero” off-mode current

• TTL logic-controlled enable input

Applications

• Cellular phones and pagers

• Cellular accessories

• Battery-powered equipment

• Laptop, notebook, and palmtop computers

• Consumer/personal electronics