General Description

The MIC2937A family are “bulletproof” efficient voltage regulators with very low dropout voltage (typically 40mV at light loads and 300mV at 500mA), and very low quiescent current (160µA typical). The quiescent current of the MIC2937A in creases only slightly in dropout, thus prolonging battery life. Key MIC2937A features include protection against reversed battery, fold-back current limiting, and automotive “load dump” protection (60V positive transient).

Features

• High output voltage accuracy

• Guaranteed 750mA output

• Low quiescent current

• Low dropout voltage

• Extremely tight load and line regulation

• Very low temperature coefficient

• Current and thermal limiting

• Input can withstand –20V reverse battery and +60V positive transients

• Error flag warns of output dropout

• Logic-controlled electronic shutdown

• Output programmable from 1.24V to 26V(MIC29372)

• Available in TO-220, TO-263, TO-220-5, and TO-263-5 packages.

Applications

• Battery Powered Equipment

• Cellular Telephones

• Laptop, Notebook, and Palmtop Computers

• PCMCIA VCC and VPP Regulation/Switching

• Bar Code Scanners

• Automotive Electronics

• SMPS Post-Regulator/ DC to DC Modules

• High Efficiency Linear Power Supplies