MIC29510

MIC29510/29512 Micrel MIC29510/29512 5A Fast-Response LDO Regulator Preliminary Information General Description The MIC29510 and MIC29512 are high-current, high-accuracy, low-dropout voltage regulators featuring fast transient recovery from input voltage surges and output load current changes. These regulators use a PNP pass element that features Micrel’s proprietary Super ßeta PNP™ process. The MIC29510/2 is available in two versions: the three pin fixed output MIC29510 and the five pin adjustable output voltage MIC29512. All versions are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and negative transient voltage spikes. A TTL compatible enable (EN) control pin supports external on/off control. If on/off control is not required, the device may be continuously enabled by connecting EN to IN. The MIC29510/2 is available in the standard three and five pin TO-220 package with an operating junction temperature range of 0°C to +125°C. Features Fast transient response 5A current capability 700mV dropout voltage at full load Low ground current Accurate 1% guaranteed tolerance “Zero” current shutdown mode (MIC29512) Fixed voltage and adjustable versions Applications Pentium™ and Power PC™ processor supplies High-efficiency “green” computer systems High-efficiency linear power supplies High-efficiency switching supply post regulator Battery-powered equipment For appli...