Micrel MIC4721
MIC4721 is a high efficiency PWM buck (stepdown) regulators that provides up to 1.5A of output current. The MIC4721 operates at 2MHz and has proprietary internal compensation that allows a closed loop bandwidth of over 200KHz. The low on-resistance internal p-channel MOSFET of the MIC4721 allows efficiencies up to 94%, reduces external components count and eliminates the need for an expensive current sense resistor.| Part No. | MIC4721 |
|---|---|
| Datasheet | MIC4721 Download |
| Manufacturer |  Micrel |
| Description | Integrated Switch Buck Regulator |
| Buy | Stock & Price |
GENERAL DESCRIPTION
The Micrel The MIC4721 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. The MIC4721 is available in the 10-pin 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:FEATURES
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● 2.7 to 5.5V supply voltage 2MHz PWM mode Output current to 1.5A 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 1.5A MOSFET switch Micropower shutdown Power Good pin Thermal shutdown and current limit protection Pb-free 10-pin MSOP package –40°C to +125°C junction temperature range
APPLICATIONS
● FPGA/DSP/ASIC applications● General point of load
● Broadband communications
● DVD/TV recorders...
