MIC4722 Datasheet 3mm x 3mm 2.7MHz 3A PWM Buck Regulator

Manufacturer: Micrel Semiconductor

Overview: MIC4722 3mm x 3mm 2.7MHz 3A PWM Buck Regulator www.datasheet4u.

MIC4722 3mm x 3mm 2.7mhz 3a pwm buck regulator by Micrel Semiconductor - Datasheet Preview

Datasheet Details

Part number	MIC4722
Manufacturer	Micrel Semiconductor
File Size	614.77 KB
Description	3mm x 3mm 2.7MHz 3A PWM Buck Regulator
Download	MIC4722 Download (PDF)

General Description

The Micrel MIC4722 is a high efficiency PWM buck (stepdown) regulator that provides up to 3A of output current.

The MIC4722 operates at 2.7MHz that makes it suitable for next generation XDSL modems requiring operating frequencies in excess of 2.4MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz.

The low on-resistance internal p-channel MOSFET of the MIC4722 allows efficiencies over 92%, reduces external components count and eliminates the need for an expensive current sense resistor.

Key Features

2.7 to 5.5V supply voltage 2.7MHz PWM mode Output current to 3A >92% efficiency 100% maximum duty cycle Adjustable output voltage option down to 1V Ultra-fast transient response Ultra-small external components Stable with a 0.47µH inductor and a 4.7µF output capacitor Fully integrated 3A MOSFET switch Micropower shutdown Thermal shutdown and current limit protection P.

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