MIC5209 Datasheet | Micrel Semiconductor

Micrel 500m A Low-Noise LDO Regulator General Description The MIC5209 is an efficient linear voltage regulator with very low dropout voltage, typically 10m V at light loads and less than 500m V 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 500m A output over the full operating temperature range - Low 500m V 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 puters Cellular telephones Consumer and personal electronics SMPS post-regulator/dc-to-dc modules High-efficiency linear power supplies For space-critical applications where peak currents do not exceed 500m A, see the MIC5219. Typical Applications MIC5209-2.5BS Ordering Information Part Number MIC5209-2.5BS MIC5209-3.0BS MIC5209-3.3BS Voltage 2.5V 3.0V 3.3V 3.6V 4.2V 5.0V 1.8V 2.5V 3.0V 3.3V 3.6V 5.0V Adj. 2.5V 3.0V 3.3V 3.6V 5.0V Adj. 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...