MIC5237

MIC5237 Micrel MIC5237 500mA Low-Dropout Regulator Preliminary Information General Description The MIC5237 is a general-purpose low-dropout regulator capable of 500mA output current with better than 3% output voltage accuracy. Using Micrel’s proprietary Super ßeta PNP™ process with a PNP pass element, these regulators feature less than 300mV dropout voltage and typically 8mA ground current at full load. Designed for applications that require moderate current over a broad input voltage range, including hand-held and batterypowered devices, the MIC5237 is intended for applications that can tolerate moderate voltage drop at higher current. Key features include low ground current to help prolong battery life, reversed-battery protection, current limiting, overtemperature shutdown, and thermally efficient packaging. The MIC5237 is available in fixed output voltages only. Features Guaranteed 500mA output over the full operating temperature range Low 300mV typical dropout voltage at full load Extremely tight load and line regulation Current and thermal limiting Reversed-battery protection TO-220 and TO-263 packages Low temperature coefficient No-load stability Low-noise output Applications Portable and laptop computers Desktop computer Battery chargers SMPS post-regulator/dc-to-dc modules Consumer and personal electronics For space-critical applications and improved performance, see the MIC5209 and MIC5219. For output current requirements up to 750m...