ADP3207C 7-Bit Programmable, Multi-Phase Mobile, CPU Synchronous Buck Controller

PublishTime：2021-06-21

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:
■1−, 2−, or 3−Phase Operation at Up to 750 kHz per Phase
■±7 mV Worst−Case Differential Sensing Error Overtemperature
■Input Voltage Range of 3.3 V to 22 V
■Interleaved PWM Outputs for Driving External High Power MOSFET Drivers
■Enhanced PWM FlexMode™ for Excellent Load Transient Performance
■Automatic Power−Saving Modes Maximize Efficiency During Light Load and Deeper Sleep Operation
■Soft Transient Control Reduces Inrush Current and Audio Noise
■Active Current Balancing Between Output Phases
■Independent Current Limit and Load Line Setting Inputs for Additional Design Flexibility
■Built−In, Power−Good Masking Supports VID OTF
■7−Bit Digitally Programmable 0.3 V to 1.5 V Output
■Overload and Short−Circuit Protection Latchoff Delay
■Built−In, Clock Enable Output Delays CPU Clock Until CPU Supply Voltage Stabilizes
■Current Monitor Output Signals the Total Output Power of the Buck Converter
■This is a Pb−Free Device

Brand of Product：	ON Semiconductor
Part#：	ADP3207C 、 ADP3207CJCPZ−RL 、 ADP3207CFJCPZ−RL 、 ADP3207CF More Part#
Product Category：	7-Bit Programmable, Multi-Phase Mobile, CPU Synchronous Buck Controller 、 multi−phase, synchronous, buck−switching regulator controller More
Application：	[ Notebook Power Supplies for Next Generation Intel® Processors ] More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	LFCSP40
Language：	English Chinese Chinese and English Japanese
Date of Creation：	December, 2009
Version Number：	Rev. 0
Data Encoding：	ADP3207C/D
Data Size：	594 KB

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