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NCP5380

更新时间： 2024-09-19 05:34:43
品牌 Logo 应用领域
安森美 - ONSEMI 驱动器控制器
页数 文件大小 规格书
27页 486K
描述
Single-Phase Synchronous Buck Controller with Integrated Driver

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中文翻译

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NCP5380 数据手册

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NCP5380  
7-Bit, Programmable,  
Single-Phase, Synchronous  
Buck Switching Regulator  
Controller  
http://onsemi.com  
MARKING  
General Description  
The NCP5380 is a highly efficient, single−phase, synchronous buck  
switching regulator controller. With its integrated drivers, the  
NCP5380 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 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 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 also provides accurate and reliable current overload  
protection and a delayed power−good output. The IC supports  
on−the−fly output voltage changes requested by the chipset.  
The NCP5380 is specified over the extended commercial  
temperature range of 0°C to 85°C and 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  
• Single−chip Solution  
1
• Fully Compatible with the Intel VR11 CPU Chipset Voltage  
PWRGD  
IMON  
N/C  
VCC  
BST  
Regulator Specifications  
• Integrated MOSFET Drivers  
DRVH  
SW  
PVCC  
DRVL  
PGND  
GND  
NCP5380  
(Top View)  
FBRTN  
FB  
•
8 mV Worst−case Differentially Sensed Core Voltage Error over  
Temperature  
COMP  
GND  
ILIM  
• 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)  
On−the−fly Transients  
• 7−bit, Digitally Programmable DAC  
• Short−circuit Protection with Programmable Latch−off Delay  
• Current Monitor Output Signal  
• 32−lead QFN  
• This is a Pb−Free Device  
ORDERING INFORMATION  
†
Device  
NCP5380MNR2G  
Package  
Shipping  
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.  
Applications  
• Desktop Power Supplies for Next−generation Intel Chipsets  
©
Semiconductor Components Industries, LLC, 2009  
1
Publication Order Number:  
May, 2009 − Rev. 0  
NCP5380/D  
1234567...27

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