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Description:6-Bit, Programmable 2-/3-/4-Phase, Synchronous Buck Controller
Manufacturer:Analog Devices
Datasheet:PDF (832K).
Click here to download *)

The ADP3190/ADP3190A1 are highly efficient, multiphase, synchronous buck switching regulator controllers optimized for converting a 5 V or 12 V main supply into the core supply voltage required by high performance Intel processors. They use an internal 6-bit DAC to read a voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.8375 V and 1.6 V. The devices use 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. The ADP3190/ADP3190A also include programmable, no-load offset and slope functions to adjust the output voltage as a function of the load current, so it is always optimally positioned for a system transient. The ADP3190/ADP3190A also provide accurate and reliable short-circuit protection, adjustable current limiting, and a delayed power good output that accommodates on-the-fly output voltage changes requested by the CPU.

Click here to download ADP3190AJRUZ-RL Datasheet
Click here to download ADP3190AJRUZ-RL Datasheet
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