Datasheet Microchip MIC4685WR-TR
The MIC4685 is a high-efficiency 200kHz stepdown (buck) switching regulator
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MIC4685 Data Sheet
3A SPAK SuperSwitcherв„ў
Buck Regulator General Description Features The MIC4685 is a high-efficiency 200kHz stepdown (buck)
switching regulator. Power conversion efficiency of above
85% is easily obtainable for a wide variety of applications.
The MIC4685 achieves 3A of continuous current in the
7-pin SPAK package.
The thermal performance of the SPAK allows it to replace
TO-220s and TO-263s (D2PAKs) in many applications.
The SPAK saves board space with a 36% smaller footprint
High-efficiency is maintained over a wide output current
range by utilizing a boost capacitor to increase the voltage
available to saturate the internal power switch. As a result
of this high-efficiency, only the ground plane of the PCB is
needed for a heat sink.
The MIC4685 allows for a high degree of safety. It has a
wide input voltage range of 4V to 30V (34V transient),
allowing it to be used in applications where input voltage
transients may be present. Built-in safety features include
over-current protection, frequency-foldback short-circuit
protection, and thermal shutdown.
The MIC4685 is available in a 7-pin SPAK package with a ...
|Lifecycle Status||Production (Appropriate for new designs but newer alternatives may exist)|
|# of Outputs||1|
|Duty Cycle Max||0.94 %|
|Input Voltage Range||4 - 30 V|
|Light Load Efficiency Mode||No|
|Operating Temperature Range||-40 to +125 °C|
|Output Current||3000 mA) Max|
|Output Voltage Range||1.24 V|
|Quiescent Current||6 mA) type|
|Regulator Type||Step Down (Buck)|
|SHUTDOWN Current||5 µA|
|Switching Frequency||200 kHz|
- Power Management > Switching Regulators > Step Down up to 36V
MIC4685WRTR, MIC4685WR TR
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