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NCP5380_12

更新时间： 2024-09-20 01:20:15
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
28页 514K
描述
7-Bit, Programmable, Single-Phase, Synchronous Buck Switching Regulator Controller

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NCP5380_12 数据手册

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NCP5380, NCP5380A  
7-Bit, Programmable,  
Single-Phase, Synchronous  
Buck Switching Regulator  
Controller  
http://onsemi.com  
MARKING  
General Description  
The NCP5380/A is a highly efficient, single−phase, synchronous  
buck switching regulator controller. With its integrated drivers, the  
NCP5380/A is optimized for converting the silver box 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  
chipset.  
The NCP5380/A uses a multimode architecture. It provides  
programmable switching frequency that can be optimized for  
efficiency depending on the output current requirement. In addition,  
the NCP5380/A 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  
NCP5380/A 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 chipset.  
The NCP5380 is specified over the temperature range of 0°C to  
85°C, while the NCP5380A extends the temperature range to −40°C to  
100°C. The NCP5380/A is available in a 32−lead QFN.  
DIAGRAM  
1
NCP5380  
AWLYYWWG  
G
32  
1
QFN32, 5x5  
CASE 488AM  
MN SUFFIX  
NCP5380 = Specific Device Code  
A
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb Free Package  
WL  
YY  
WW  
G
(Note: Microdot may be in either location)  
PIN CONFIGURATION  
Features  
1
• Single−chip Solution  
PWRGD  
IMON  
N/C  
VCC  
• Fully Compatible with the Intel VR11 CPU Chipset Voltage  
BST  
DRVH  
SW  
PVCC  
DRVL  
PGND  
GND  
Regulator Specifications  
• Integrated MOSFET Drivers  
NCP5380  
(Top View)  
FBRTN  
FB  
COMP  
GND  
ILIM  
•
8 mV Worst−case Differentially Sensed Core Voltage Error over  
Temperature  
• 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  
ORDERING INFORMATION  
• Built−in Power−good Masking Supports Voltage Identification (VID)  
OTF Transients  
• 7−bit, Digitally Programmable DAC  
†
Device  
NCP5380MNR2G  
Package  
Shipping  
QFN−32 5000 / Tape & Reel  
(Pb−Free)  
• Short−circuit Protection with Programmable Latchoff Delay  
• Current Monitor Output Signal  
• 32−lead QFN  
NCP5380AMNR2G QFN−32 5000 / Tape & Reel  
(Pb−Free)  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specifications  
Brochure, BRD8011/D.  
• This is a Pb−Free Device  
Applications  
• Desktop Power Supplies for Next−generation Intel Chipsets  
© Semiconductor Components Industries, LLC, 2011  
1
Publication Order Number:  
April, 2011 − Rev. 3  
NCP5380/D  
1234567...28

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