The MIC23030 is a high efficiency 8MHz 400mA synchronous buck regulator with HyperLight Load? mode. HyperLight Load? provides very high efficiency at light loads and ultra-fast transient response which is perfectly suited for supplying processor core voltages. An additional benefit of this proprietary architecture is very low output ripple voltage throughout the entire load range with the use of small output capacitors.

The MIC23030 is designed for use with a very small inductor, down to 0.47μH, and an output capacitor as small as 2.2μF that enables a sub-1mm height.

The MIC23030 has a very low quiescent current of 21μA and achieves as high as 83% efficiency at 1mA. At higher loads, the MIC23030 provides a constant switching frequency around 8MHz while achieving peak efficiencies up to 91%.

  Input voltage: 2.7V to 5.5V

  400mA output current

  Up to 91% efficiency and 83% at 1mA

  21 μA typical quiescent current

  8MHz PWM operation in continuous mode

  Ultra fast transient response

  Low voltage output ripple

  Fully integrated MOSFET switches

  0.01 μA shutdown current

  Thermal shutdown and current limit protection

  Fixed and adjustable output voltage options available

   -40 °C to +125 °C junction temperature range