General Description
The MIC2954 is a “bulletproof” efficient voltage regulator with very low dropout voltage (typically 40mV @ light loads and 375mV @ 250mA), and low quiescent current (120µA typical). The quiescent current of the MIC2954 increases only slightly in dropout, thus prolonging battery life. Key MIC2954 features include protection against reversed battery, fold-back current limiting, and automotive load dump protection (60V positive transient).

Features
• High-accuracy 5V, guaranteed 250mA 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 low output voltage
• Logic-controlled electronic shutdown
• Output programmable from 1.24V to 29V
   (MIC2954-07/08)
• Available in TO-220, TO-92, and surface-mount SOT-
   223 and SOIC-8 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
• Voltage reference
• High-efficiency linear power supplies