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Partname:ADP3181
Description:5-Bit or 6-Bit Programmable 2-,3-,4-Phase Synchronous Buck Controller
Manufacturer:Analog Devices
Datasheet:PDF (541K).
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The ADP3181 is a highly efficient multiphase synchronous buck-switching regulator controller optimized for converting a 12 V main supply into the core supply voltage required by high performance Intel processors. It uses an internal 6-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage. The CPUID input selects whether the DAC codes match the VRM 9 or VRD 10 specifications. It uses a multimode PWM architecture to drive the logic-level outputs at a programmable switching frequency that can be optimized for VR size and efficiency. The phase relationship of the output signals can be programmed to provide 2-, 3-, or 4-phase operation, allowing for the construction of up to four complementary buck-switching stages.

Click here to download ADP3181 Datasheet
Click here to download ADP3181 Datasheet
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