Microchip Technology MIC5239
The MIC5239 is a low quiescent current, µCap low-dropout regulator. With a maximum operating input voltage of 30V and a quiescent current of 23 µA, it is ideal for supplying keep-alive power in systems with high voltage batteries. It can provide high output current for applications such as USB.FEATURES
● Ultra-Low Quiescent Current (IQ = 23 µA @ IO = 100 µA)● Continuous 500 mA Output Current
● Wide Input Range: 2.3V to 30V
● Low Dropout Voltage: 350 mV @ 500 mA
● ±1.0% Initial Output Accuracy
● Stable with Ceramic or Tantalum Output Capacitor
● Logic Compatible Enable Input
● Low Output Voltage Error Flag Indicator
● Overcurrent Protection
● Thermal Shutdown
● Reverse-Leakage Protection
● Reverse-Battery Protection
● High-Power SOIC-8, MSOP-8, and SOT-223 Packages
APPLICATIONS
● USB Power Supply● Keep-Alive Supply in Notebook and Portable Personal Computers
● Logic Supply from High Voltage Batteries
● Automotive Electronics
● Battery-Powered Systems Package Types
GENERAL DESCRIPTION
Capable of 500 mA output, the MIC5239 has a dropout voltage of only 350 mV. As a µCap LDO, the MIC5239 is stable with either a ceramic or a tantalum output capacitor. It only requires a 3.3 µF output capacitor for stability. The MIC5239 includes a logic compatible enable input and an undervoltage error flag indicator.