General Description

Micrel’s MIC5159 is a precision-voltage regulator controller. Used with an external P-Channel MOSFET, the MIC5159 forms a two-chip low-dropout regulator capable of driving a wide range of output currents.

Features

• Fast transient response

• Input voltage range: VIN 1.65V to 5.5V

• ±1.0 initial output tolerance

• Fixed 1.8V or adjustable output voltage down to 1.25V

• Stable with ceramic output capacitor

• Capable up to 10A

• Excellent line and load regulation specifications

• Logic-controlled shutdown

• Programmable current limit

• Current-limit protection

• IttyBitty® SOT-23-6 package

• Available temperature range:–40°C to +125°C

Applications

• Ultra-high current, ultra-low dropout voltage regulator

• High-efficiency linear power supplies

• Low-voltage distributed power

• Fixed telecom

• Multimedia and PC power supplies

• Battery chargers

• Low-voltage DSP, microprocessor and microcontroller power supplies