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Partname:ADP3178JR
Description:4-Bit Programmable Synchronous Buck Controllers
Manufacturer:Analog Devices
Datasheet:PDF (190K).
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The ADP3158 and ADP3178 are highly efficient synchronous buck switching regulator controllers optimized for converting a 5 V main supply into the core supply voltage required by highperformance processors. These devices use an internal 4-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 1.3 V and 2.05 V. They use a current mode, constant off-time architecture to drive two N-channel MOSFETs at a programmable switching frequency that can be optimized for regulator size and efficiency.

Click here to download ADP3178JR Datasheet
Click here to download ADP3178JR Datasheet
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