Microchip Technology, Inc. 500mA Peak Output LDO MIC5219

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 10mV at light loads and less than 500mV at full load. The MIC5219 is designed to provide a peak output current for start-up conditions where higher in-rush current is demanded. It features a 500mA 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-compatible signal. When disabled, power consumption drops to nearly zero. Dropout ground current is minimized to help prolong battery life. Other key features include reversed battery protection, current limiting, over-temperature shutdown, and low noise performance with an ultra-low noise option. The MIC5219 is available in adjustable or fixed output voltages in SOT-23-5, and MM8® 8-pin power MSOP packages. For higher power requirements, see the MIC5209 or MIC5237. Additional Features 500mA output current capability SOT-23-5 package - 500mA peak MSOP-8 package - 500mA continuous Low 500mV 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-compatible enable/shutdown control Near-zero shutdown current