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MIC4723 - Integrated Switch Buck Regulator

Description

The Micrel MIC4723 is a high efficiency PWM buck (stepdown) regulator that provides up to 3A of output current.

The MIC4723 operates at 2.0MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz.

Features

  • 2.7 to 5.5V supply voltage 2.0MHz PWM mode Output current to 3A Up to 94% efficiency 100% maximum duty cycle Adjustable output voltage option down to 1V Ultra-fast transient response Ultra-small external components Stable with a 1µH inductor and a 4.7µF output capacitor Fully integrated 3A MOSFET switch Micropower shutdown Thermal shutdown and current limit protection.

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Datasheet preview – MIC4723

Datasheet Details

Part number MIC4723
Manufacturer Micrel Semiconductor
File Size 540.58 KB
Description Integrated Switch Buck Regulator
Datasheet download datasheet MIC4723 Datasheet
Additional preview pages of the MIC4723 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com MIC4723 3A 2MHz Integrated Switch Buck Regulator General Description The Micrel MIC4723 is a high efficiency PWM buck (stepdown) regulator that provides up to 3A of output current. The MIC4723 operates at 2.0MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz. The low on-resistance internal p-channel MOSFET of the MIC4723 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor. The MIC4723 operates from 2.7V to 5.5V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in lowdropout conditions.
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