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Description:5-Bit Programmable 2-/3-Phase Synchronous Buck Controller
Manufacturer:Analog Devices
Datasheet:PDF (133K).
Click here to download *)

The ADP3163 is a highly efficient multiphase synchronous buck switching regulator controller optimized for converting a 5 V or 12 V main supply into the core supply voltage required by high performance Intel processors. The ADP3163 uses an internal 5-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 1.1 V and 1.85 V. The ADP3163 uses a current mode PWM architecture to drive the logic-level outputs at a programmable switching frequency that can be optimized for VRM size and efficiency. The phase relationship of the output signals can be programmed to provide 2- or 3-phase operation, allowing for the construction of up to three complementary buck switching stages. These stages share the dc output current to reduce overall output voltage ripple. An active current balancing function ensures that all phases carry equal portions of the total load current, even under large transient loads, to minimize the size of the inductors.

Click here to download ADP3163JRU-REEL7 Datasheet
Click here to download ADP3163JRU-REEL7 Datasheet
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