MIC5237 Datasheet | Micrel Semiconductor

Micrel 500m A Low-Dropout Regulator Preliminary Information General Description The MIC5237 is a general-purpose low-dropout regulator capable of 500m A 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 300m V dropout voltage and typically 8m A 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 500m A output over the full operating temperature range - Low 300m V 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 puters Desktop puter 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 A, see the MIC2937. Ordering Information Part Number MIC5237-2.5BT MIC5237-2.5BU MIC5237-3.3BT MIC5237-3.3BU MIC5237-5.0BT MIC5237-5.0BU Voltage 2.5V 2.5V 3.3V 3.3V 5.0V 5.0V Junct. Temp. Range - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C - 40°C to +125°C Package TO-220 TO-263 TO-220 TO-263 TO-220 TO-263 Typical Application VIN ≥5.6V MIC5237-5.0 IN 1.0µF OUT GND 1.0µF tantalum VOUT 5.0V ±3% Micrel,...