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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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