General Description

The MIC29302A is a high-current, low-cost, low-dropout voltage regulator that uses Micrels proprietary Super βeta PNP® process with a PNP pass element. The 3A LDO regulator features 450mV (full load) dropout voltage and very low ground current. Designed for high-current loads, these devices also find applications in lower current, low-dropout critical systems, where their dropout voltages and ground current values are important attributes.

Features

• High-current capability

− 3A over full temperature range

• Low-dropout voltage of 450mV at full load

• Low ground current

• Accurate 1 guaranteed tolerance

• Extremely fast transient response

• Zero-current shutdown mode

• Error flag signals output out-of-regulation

• Adjustable output voltage

• Packages: TO-263-5L and TO-252-5L

Applications

• Processor peripheral and I/O supplies

• High-efficiency “green” computer systems

• Automotive electronics

• High-efficiency linear lower supplies

• Battery-powered equipment

• PC add-in cards

• High-efficiency post-regulator for switching supply