MIC5219 Datasheet | Micrel Semiconductor

Micrel, Inc. 500m A-Peak Output LDO Regulator General Description The MIC5219 is an efficient linear voltage regulator with high peak output current capability, very-low-dropout voltage, and better than 1% output voltage accuracy. Dropout is typically 10m V at light loads and less than 500m V at full load. The MIC5219 is designed to provide a peak output current for start-up conditions where higher inrush current is demanded. It Features a 500m A peak output rating. Continuous output current is limited only by package and layout. The MIC5219 can be enabled or shut down by a CMOS or TTL patible signal. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life. Other key Features include reversedbattery protection, current limiting, overtemperature shutdown, and low noise performance with an ultra-low-noise option. The MIC5219 is available in adjustable or fixed output voltages in the space-saving 6-pin (2mm × 2mm) MLF®, 6-pin (2mm × 2mm) Thin MLF® SOT‑23‑5 and MM8® 8‑pin power MSOP packages. For higher power requirements see the MIC5209 or MIC5237. All support documentation can be found on Micrel’s web site at .micrel.. Features - 500m A output current capability SOT-23-5 package - 500m A peak 2mm×2mm MLF® package - 500m A continuous 2mm×2mm Thin MLF® package - 500m A continuous MSOP-8 package - 500m A continuous - Low 500m V maximum dropout voltage at full load - Extremely tight load and line regulation - Tiny SOT-23-5 and MM8™ power MSOP-8 package - Ultra-low-noise output - Low temperature coefficient - Current and thermal limiting - Reversed-battery protection - CMOS/TTL-patible enable/shutdown control - Near-zero shutdown current Applications - Laptop, notebook, and palmtop puters - Cellular telephones and battery-powered equipment - Consumer and personal electronics - PC Card VCC and VPP regulation and switching - SMPS post-regulator/DC-to-DC...