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MIC2111B

Micrel Semiconductor
Part Number MIC2111B
Manufacturer Micrel Semiconductor
Description Step-Down Controller
Published Nov 23, 2016
Detailed Description MIC2111B High-Performance, Multi-Mode, Step-Down Controller General Description Micrel’s MIC2111B is a programmable-fre...
Datasheet PDF File MIC2111B PDF File

MIC2111B
MIC2111B

Overview
MIC2111B High-Performance, Multi-Mode, Step-Down Controller General Description Micrel’s MIC2111B is a programmable-frequency, valleycurrent/voltage-mode PWM controller that provides the control and protection features necessary for power devices and drivers that use current sensing across the inductor.
The MIC2111B can provide single tri-state PWM logic signal to work with either power-stage modules or discrete driver and MOSFETs.
The device has precision enable and power-good (PG) functions for sequencing of multiple power supplies.
In addition, the solution is compatible with intelligent power stages in a high-current, step-down DC/DC converter.
To optimize system size and system efficiency, the MIC2111B frequency can be programmed from 200kHz to 2MHz.
The device operates in power-saving mode at light loads by reducing frequency.
Optional outside audio range operation is possible when the power-stage is configured in light load mode.
The solution uses differential current sensing...


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