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ADP3207C

ON Semiconductor
Part Number ADP3207C
Manufacturer ON Semiconductor
Description CPU Synchronous Buck Controller
Published Jul 28, 2010
Detailed Description www.DataSheet4U.com ADP3207C 7-Bit Programmable, Multi-Phase Mobile, CPU Synchronous Buck Controller The ADP3207C is a ...
Datasheet PDF File ADP3207C PDF File

ADP3207C
ADP3207C

Overview
www.
DataSheet4U.
com ADP3207C 7-Bit Programmable, Multi-Phase Mobile, CPU Synchronous Buck Controller The ADP3207C is a high efficiency, multi−phase, synchronous, buck−switching regulator controller optimized for converting notebook battery voltage into the core supply voltage required by high performance Intel processors.
The part uses an internal 7−bit Digital−to−Analog Converter (DAC) to read Voltage Identification (VID) code directly from the processor that sets the output voltage.
The phase relationship of the output signals can be programmed to provide 1−, 2−, or 3−phase operation, allowing for the construction of up to three interleaved buck−switching stages.
The ADP3207C uses a multi−mode architecture to drive the logic−level PWM outputs at a programmable switching frequency that can be optimized depending on the output current requirement.
The part switches between multi−phase and single−phase operation to maximize its effectiveness under all load conditions.
In addition, the ADP3207C includes a programmable slope function to adjust the output voltage as a function of the load current.
As a result, it is always best positioned for a system transient.
The chip also provides accurate and reliable short−circuit protection, adjustable current limiting, and a delayed power−good output that accommodates On−the−Fly (OTF) output voltage changes requested by the CPU.
The ADP3207C is specified over the extended commercial temperature range of −10°C to 100°C and is available in a 40−lead LFCSP.
The ADP3207CF has a soft−start time one tenth of ADP3207C.
There are no other differences between the ADP3207C and ADP3207CF.
Features http://onsemi.
com LFCSP40 CASE 932AC MARKING DIAGRAMS ADP3207C AWLYYWWG ADP3207C CF AWLYYWWG A WL YYWW G = Assembly Location = Wafer Lot = Date Code = Pb−Free Package ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 31 of this data sheet.
• 1−, 2−, or 3−Phase Operation at Up to...


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