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MIC2208

Micrel Semiconductor
Part Number MIC2208
Manufacturer Micrel Semiconductor
Description PWM Buck Regulator
Published Apr 6, 2007
Detailed Description MIC2208 3mm x 3mm 1MHz 3A PWM Buck Regulator General Description The Micrel MIC2208 is a high efficiency PWM buck (step...
Datasheet PDF File MIC2208 PDF File

MIC2208
MIC2208

Overview
MIC2208 3mm x 3mm 1MHz 3A PWM Buck Regulator General Description The Micrel MIC2208 is a high efficiency PWM buck (stepdown) regulator that provides up to 3A of output current.
The MIC2208 operates at 1MHz and has external compensation that allows a closed loop bandwidth of over 100kHz.
The low on-resistance internal p-channel MOSFET of the MIC2208 allows efficiencies over 94% reduces external component count and eliminates the need for an expensive current sense resistor.
The MIC2208 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 MIC2208 is available in the exposed pad 12-pin 3mm x 3mm MLF® package with a junction operating range from –40°C to +125°C.
Datasheets and support documentation can be found on Micrel’s web site at: www.
micrel.
com.
Features • 2.
7 to 5.
5V supply voltage • 1MHz PWM mode • Output current to 3A • >90% efficiency • Adjustable output voltage option down to 1V • Ultra-fast transient response • External Compensation • Stable with a wide range of output capacitance • Fully integrated 5A MOSFET switch • Micropower shutdown • Thermal shutdown and current limit protection • Pb-free 12-pin 3mm x 3mm MLF® package • –40°C to +125°C junction temperature range Applications • 5V or 3.
3V Point of Load Conversion • Telecom/Networking Equipment • Set Top Boxes • Storage Equipment • Video Cards ___________________________________________________________________________________________________________ Typical Application 3A 1MHz Buck Regulator MLF and MicroLeadFrame are registered trademarks of Amkor Technology, Inc.
Micrel Inc.
• 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.
micrel.
com May 2010 M9999-051410-D Micrel, Inc.
MIC2208 Ordering Information Part Number MIC2208YML Voltage Adj.
Temperature Range –40° to +125°C Package 12-Pin 3x3 MLF® Note: MLF® is GREEN...


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