MIC4724 3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input

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	MIC4724: 3A 2MHz Integrated Switch Buck Regulator with 6Vmax Input

Ordering Information

Standard Part Number	Package	Finish
MIC4724YMME	10-Pin ePAD MSOP	Pb-Free

General Description

The Micrel MIC4724 is a high efficiency PWM buck (step-down) regulator that provides up to 3A of output current. The MIC4724 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 MIC4724 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor.

The MIC4724 operates from 3.0V to 6.0V input and the output can be adjusted down to 1V. The devices can operate with a maximum duty cycle of 100% for use in low-dropout conditions.

The MIC4724 is available in 10-pin ePAD MSOP package with a junction operating range from –40°C to +125°C.

Data sheets and support documentation can be found on Micrel’s web site at: www.micrel.com.

	Download Datasheet
	Download Eval Board

Typical Application

Features

3.0 to 6.0V 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
Pb-free 10-pin ePAD MSOP package
–40 ° C to +125 ° C junction temperature range

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