Microchip Technology, Inc. 500mA uCap Ultra-Low Dropout, High PSRR LDO Regulator MIC5319

The MIC5319 is a high-performance, 500mA LDO regulator, offering extremely high PSRR and very low noise while consuming low ground current. Ideal for battery-operated applications, the MIC5319 features 1% accuracy, extremely low-dropout voltage (200mV @ 500mA), and low ground current at light load (typically 90µA). Equipped with a logic-compatible enable pin, the MIC5319 can be put into a zero-off-mode current state, drawing no current when disabled. The MIC5319 is a µCap design operating with very small ceramic output capacitors for stability, thereby reducing required board space and component cost. The MIC5319 is available in fixed-output voltages and adjustable output voltages in thin SOT-23-5 package. Additional Features Ultra-low dropout voltage 200mV @ 500mA Input voltage range: 2.5 to 5.5V Stable with ceramic output capacitor Low output noise 30µVrms Low quiescent current of 90µA total High PSRR, up to 70dB @1kHz Fast turn-on-time 40µs typical High output accuracy: ±1.0% initial accuracy ±2.0% over temperature Thermal shutdown protection Current-limit protection Logic-controlled Enable Thin SOT-23-5 package, 500mA peak