Datasheet Microchip MIC4724
The MIC4724 is a high efficiency PWM buck (step-down) regulator that provides up to 3A of output current
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MIC4724 Data Sheet
3A 2MHz Integrated Switch
Buck Regulator with 6Vmax Input General Description Features The Micrel MIC4724 is a high efficiency PWM buck (stepdown) 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 lowdropout conditions.
The MIC4724 is available in 10-pin ePAD MSOP package
with a junction operating range from вЂ“40В°C to +125В°C.
Data sheets and support documentation can be found on
MicrelвЂ™s web site at: www.micrel.com. 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 ...
|Lifecycle Status||Production (Appropriate for new designs but newer alternatives may exist)||Production (Appropriate for new designs but newer alternatives may exist)|
|# of Outputs||1||1|
|Duty Cycle Max, %||1||1|
|Input Voltage Range, V||3 - 6||3 - 6|
|Light Load Efficiency Mode||No||No|
|Operating Temperature Range, °C||-40 to +125||-40 to +125|
|Output Current, mA) Max||3000||3000|
|Output Voltage Range, V||1 - 5.5||1 - 5.5|
|Quiescent Current, mA) type||0.57||0.57|
|Regulator Type||Step Down (Buck)||Step Down (Buck)|
|SHUTDOWN Current, µA||2||2|
|Switching Frequency, kHz||2000||2000|
- Power Management > Switching Regulators > Step Down up to 36V