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MIC2245

Part Number	MIC2245
Manufacturer	Micrel Semiconductor
Description	PWM Synchronous Buck Regulator
Published	Sep 19, 2007
Detailed Description	com MIC2245 4MHz PWM Synchronous Buck Regulator with LDO Standby Mode General Description The Micrel M...
Datasheet	MIC2245 PDF File

Overview

com MIC2245 4MHz PWM Synchronous Buck Regulator with LDO Standby Mode General Description The Micrel MIC2245 is a high efficiency 4MHz pulse width modulated (PWM) synchronous buck (stepdown) regulator that features a LOWQ™ LDO standby mode that draws only 18µA of quiescent current.
The MIC2245 allows an ultra-low noise, small size, and high efficiency solution for portable power applications.
In PWM mode, the MIC2245 operates with a constant frequency 4MHz PWM control.
Under light load conditions, such as in system sleep or standby modes, the PWM switching operation can be disabled to reduce switching losses.
In this light load LOWQ™ mode, the LDO maintains the output volta...

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