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ADP3211

更新时间： 2024-02-04 19:19:36
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
32页 512K
描述
IMVP6.5, 7-Bit, Programmable, Single-Phase, Synchronous Buck Controller

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ADP3211 数据手册

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ADP3211, ADP3211A  
7-Bit, Programmable,  
Single-Phase, Synchronous  
Buck Controller  
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.  
http://onsemi.com  
QFN32  
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.  
MN SUFFIX  
CASE 488AM  
32  
1
MARKING DIAGRAM  
1
xxxxxx  
xxxxxx  
AWLYYWW  
The ADP3211 is specified over the extended commercial temperature  
range of −10°C to 100°C and is available in a 32−lead QFN.  
xxx = Specific Device Code  
= Assembly Location  
WL = Wafer Lot  
A
Features  
YY = Year  
WW = Work Week  
• Single−Chip Solution  
®
♦ Fully Compatible with the Intel IMVP−6.5t CPU and GMCH  
Chipset Voltage Regulator Specifications Integrated MOSFET  
Drivers  
PIN ASSIGNMENT  
• 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  
PWRGD  
IMON  
CLKEN  
FBRTN  
FB  
VCC  
1
BST  
DRVH  
SW  
ADP3211  
ADP3211A  
(top view)  
PVCC  
DRVL  
PGND  
GND  
• Built−in Power−Good Masking Supports Voltage Identification  
(VID) OTF Transients  
COMP  
GPU  
• 7−Bit, Digitally Programmable DAC with 0 V to 1.5 V Output  
• Short−Circuit Protection  
ILIM  
• Current Monitor Output Signal  
• This is a Pb−Free Device  
• Fully RoHS Compliant  
• 32−Lead QFN  
ORDERING INFORMATION  
Applications  
See detailed ordering and shipping information in the package  
dimensions section on page 31 of this data sheet.  
• Notebook Power Supplies for Next Generation Intel Chipsets  
• Intel Netbook Atom Processors  
©
Semiconductor Components Industries, LLC, 2009  
1
Publication Order Number:  
April, 2009 − Rev. 0  
ADP3211/D  
1234567...32

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