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MIC23031 - 4MHz PWM 400mA Buck Regulator

Datasheet Summary

Description

The MIC23031 is a high-efficiency 4MHz 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.

Features

  • Input voltage: 2.7V to 5.5V.
  • 400mA output current.
  • Up to 93% efficiency and 88% at 1mA.
  • 21µA typical quiescent current.
  • 4MHz PWM operation in continuous mode.
  • Ultra-fast transient response.
  • Low voltage output ripple.
  • 20mVpp ripple in HyperLight Load™ mode.
  • 3mV output voltage ripple in full PWM mode.
  • 0.01µA shutdown current.
  • Fixed and adjustable output voltage options available.
  • 6-pin 1.6m.

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Datasheet preview – MIC23031

Datasheet Details

Part number MIC23031
Manufacturer Micrel Semiconductor
File Size 1.06 MB
Description 4MHz PWM 400mA Buck Regulator
Datasheet download datasheet MIC23031 Datasheet
Additional preview pages of the MIC23031 datasheet.

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Full PDF Text Transcription

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MIC23031 4MHz PWM 400mA Buck Regulator with HyperLight Load™ General Description The MIC23031 is a high-efficiency 4MHz 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 tiny 1.6mm x 1.6mm Thin MLF® package saves precious board space and requires only three external components. The MIC23031 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.
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