• 1.7V to 5.5V input supply voltage range
• Output current: 200mA LDO1/2/3
• High output accuracy (±2%)
• Independent enable pins
• POR voltage input
• Adjustable delay time
• Manual reset pin
• Low dropout voltage: 170mV at 150mA
• High PSRR: 55dB at 1kHz on each LDO
• Stable with tiny ceramic output capacitors
• Thermal shutdown and current limit protection

The MIC5373/83 is a triple output device with three 200mA LDOs which is ideal for application processor support in mobile platforms. The MIC5373 provides independent control active high enables for each of the 200mA LDOs. The MIC5383 provides active low enables.

The MIC5373/83 is designed for high input ripple rejection (high PSRR) and provides low output noise making it ideal for powering sensitive RF circuitry such as GPS, WiFi and Bluetooth applications. The MIC5373/83 also incorporates a power-on-reset (POR) supervisor with adjustable delay time set by an external capacitor, and an independent input pin to monitor any voltage level. Once high the POR output can be asserted low again by enabling the manual reset (MR) pin. When the MR pin is restored low the POR output will re-time the delay set by the external delay capacitor.

The MIC5373/83 operates with very small ceramic output capacitors to reduce board space and component cost. It is available in various fixed output voltages. The MIC5373/83 has a junction temperature range from -40°C to +125°C.