ADP3211, ADP3211A 7-Bit, Programmable, Single-Phase, Synchronous Buck Controller

PublishTime：2021-10-25

●The ADP3211 is a highly efficient, single−phase, synchronous buck switching regulator controller. With its integrated driver, the ADP3211 is optimized for converting the notebook battery voltage to the supply voltage required by high performance Intel chipsets. An internal 7−bit DAC is used to read a VID code directly from the chip−set or the CPU and to set the GMCH render voltage or the CPU core voltage to a value within the range of 0 V to 1.5 V. The ADP3211 uses a multi−mode architecture. It provides programmable switching frequency that can be optimized for efficiency depending on the output current requirement. In addition, the ADP3211 includes a programmable load line slope function to adjust the output voltage as a function of the load current so that the core voltage is always optimally positioned for a load transient. The ADP3211 also provides accurate and reliable current overload protection and a delayed power−good output. The IC supports On−The−Fly (OTF) output voltage changes requested by the chip−set. The ADP3211 has a boot voltage of 1.1 V for IMVP−6.5 applications in CPU mode. The ADP3211A has a boot voltage of 1.2 V in CPU mode. The ADP3211 is specified over the extended commercial temperature range of −40°C to 100°C and is available in a 32−lead QFN.
●Features
■Single−Chip Solution
♦ Fully Compatible with the Intel® IMVP−6.5TM CPU and GMCH Chipset Voltage Regulator Specifications Integrated MOSFET Drivers
■Input Voltage Range of 3.3 V to 22 V
■±7 mV Worst−Case Differentially Sensed Core Voltage Error Overtemperature
■Automatic Power−Saving Modes Maximize Efficiency During Light Load Operation
■Soft Transient Control Reduces Inrush Current and Audio Noise
■Independent Current Limit and Load Line Setting Inputs for Additional Design Flexibility
■Built−in Power−Good Masking Supports Voltage Identification (VID) OTF Transients
■7−Bit, Digitally Programmable DAC with 0 V to 1.5 V Output
■Short−Circuit Protection
■Current Monitor Output Signal
■This is a Pb−Free Device
■Fully RoHS Compliant
■32−Lead QFN

Brand of Product：	ON Semiconductor
Part#：	ADP3211MNR2G 、 ADP3211AMNR2G 、 ADP3211A 、 ADP3211 More Part#
Product Category：	7-Bit Programmable Single-Phase Synchronous Buck Controller 、 highly efficient single−phase synchronous buck switching regulator controller More
Application：	[ Notebook Power Supplies for Next Generation Intel Chipsets ][ Intel Netbook Atom 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：	QFN32
Language：	English Chinese Chinese and English Japanese
Date of Creation：	November, 2009
Version Number：	Rev. 2
Data Encoding：	ADP3211/D
Data Size：	584 KB

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