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ADP3290

ON Semiconductor
Part Number ADP3290
Manufacturer ON Semiconductor
Description Programmable 2- to 4-Phase Synchronous Buck Controller
Published Jul 28, 2010
Detailed Description ADP3290 8-Bit, Programmable 2- to 4-Phase Synchronous Buck Controller The ADP3290 is a highly efficient, multi−phase, s...
Datasheet PDF File ADP3290 PDF File

ADP3290
ADP3290

Overview
ADP3290 8-Bit, Programmable 2- to 4-Phase Synchronous Buck Controller The ADP3290 is a highly efficient, multi−phase, synchronous buck switching regulator controller optimized for converting a 12 V main supply voltage into the core supply voltage of high performance Intel processors.
It uses an internal 8−bit DAC to read a Voltage Identification (VID) code directly from the processor, to set the output voltage between 0.
5 V and 1.
6 V.
This device uses a multi−mode control architecture to drive the logic−level PWM outputs.
The switching frequency can be programmed according to VR size and efficiency.
The chip can provide 2−, 3− or 4−phase operation, allowing for the construction of up to four complementary buck switching stages.
The ADP3290 also includes programmable no load offset and load line slope setting function that adjusts the output voltage as a function of the load current, optimally positioning it for a system transient.
The ADP3290 also provides accurate and reliable short−...


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