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MIC22950

Micrel
Part Number MIC22950
Manufacturer Micrel
Description 10A Integrated Switch Synchronous Buck Regulator
Published Mar 26, 2013
Detailed Description MIC22950 10A Integrated Switch Synchronous Buck Regulator with Frequency Programmable to 2MHz General Description The M...
Datasheet PDF File MIC22950 PDF File

MIC22950
MIC22950

Overview
MIC22950 10A Integrated Switch Synchronous Buck Regulator with Frequency Programmable to 2MHz General Description The Micrel MIC22950 is a high-efficiency 10A integrated switch, synchronous buck (step-down) regulator.
The MIC22950 switching frequency is programmable from 400kHz to 2MHz, allowing the customer to optimize designing either for efficiency or for the smallest footprint.
The MIC22950 achieves over 95% efficiency while still switching at 2MHz over a broad load range.
The ultra-high-speed control loop keeps the output voltage within regulation, even under extreme transient load swings commonly found in FPGAs and low voltage ASICs.
The output voltage can be adjusted down to 0.
7V in order to address all low-voltage power needs.
The MIC22950 features a full range of sequencing and tracking options.
The EN/DLY and the DELAY pins, combined with the POR/PG pin, allow multiple outputs to be sequenced in several ways during turn-on and turn-off by using EN pin.
The RC (Ramp Control™) pin allows the device to be connected to any another device in the MIC22x00 family of products, to keep the output voltages within a certain delta V during start-up.
The MIC22950 is available in a 32-pin 5mm x 5mm MLF® with a junction operating range from −40°C to +125°C.
Datasheet and supporting documentation can be found on Micrel’s web site at: www.
micrel.
com.
Features • • • • • • • • • • • • • • 2.
6V to 5.
5V supply voltage Fully-integrated MOSFET switches Adjustable output voltage option down to 0.
7V Output load current up to 10A Full sequencing and tracking capability Power-On Reset Efficiency >95% across a broad load range Operating frequency programmable: 400kHz to 2MHz Ultra-fast transient response 100% maximum duty cycle Micropower shutdown Thermal-shutdown and current-limit protection Available in a 32-pin 5mm x 5mm MLF® package −40°C to +125°C junction temperature range Applications http://www.
DataSheet4U.
net/ • • • • • High-power density point-of-load conversion Base s...


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