The MIC2225 is a dual output regulator featuring a high efficiency 2MHz PWM synchronous buck (step-down) regulator and a 300mA LDO. The MIC2225 is an ultra-low noise, small size, and high efficiency solution for portable power applications, providing core and I/O supply rails for applications like application processors, camera DSPs and multimedia chipsets.In PWM mode, the MIC2225 operates with a constant 2MHz frequency. The MIC2225 switching regulator operates from 2.7V to 5.5V input and features internal power MOSFETs that can supply up to 600mA output current in PWM mode.

DC-DC Converter 2.7V to 5.5V supply voltage 2MHz PWM mode Output current to 600mA >95% efficiency 100% maximum duty cycle Fixed output voltage option down to 1V Ultra-fast transient response Stable with 2.2µF ceramic output capacitor Fully integrated MOSFET switches Micropower shutdown (1mA in shutdown) Thermal shutdown and current limit protection Pb-free 10-pin 2mm x 2mm package -40°C to +125°C junction temperature range LDO VIN range 2.7V to 5.5V 300mA output current Output voltage down to 0.8V Thermal shutdown protection Current limit protection