MIC5209

MIC5209 Micrel MIC5209 500mA Low-Noise LDO Regulator General Description The MIC5209 is an efficient linear voltage regulator with very low dropout voltage, typically 10mV at light loads and less than 500mV at full load, with better than 1% output voltage accuracy. Designed especially for hand-held, battery-powered devices, the MIC5209 features low ground current to help prolong battery life. An enable/shutdown pin on SO-8 and TO-263-5 versions can further improve battery life with near-zero shutdown current. Key features include reversed-battery protection, current limiting, overtemperature shutdown, ultra-low-noise capability (SO-8 and TO-263-5 versions), and availability in thermally efficient packaging. The MIC5209 is available in adjustable or fixed output voltages. Features Meets Intel® Slot 1 and Slot 2 requirements Guaranteed 500mA output over the full operating temperature range Low 500mV maximum dropout voltage at full load Extremely tight load and line regulation Thermally-efficient surface-mount package Low temperature coefficient Current and thermal limiting Reversed-battery protection No-load stability 1% output accuracy Ultra-low-noise capability in SO-8 and TO-263-5 Applications Pentium II Slot 1 and Slot 2 support circuits Laptop, notebook, and palmtop computers Cellular telephones Consumer and personal electronics SMPS post-regulator/dc-to-dc modules High-efficiency linear power supplies For space-critical applications...