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NCP5314/D PDF预览

NCP5314/D

更新时间: 2024-09-27 23:53:27
品牌 Logo 应用领域
其他 - ETC 控制器
页数 文件大小 规格书
30页 329K
描述
Two/Three/Four-Phase Buck CPU Controller

NCP5314/D 数据手册

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NCP5314  
Two/Three/Four−Phase  
Buck CPU Controller  
The NCP5314 provides full−featured and flexible control for the  
latest high−performance CPUs. The IC can be programmed as a two−,  
three− or four−phase buck controller, and the per−phase switching  
frequency can be as high as 1.2 MHz. Combined with external gate  
drivers and power components, the controller implements a compact,  
http://onsemi.com  
MARKING  
DIAGRAMS  
highly integrated multi−phase buck converter.  
2
32  
Enhanced V  
control inherently compensates for variations in  
1
both line and load, and achieves current sharing between phases. This  
control scheme provides the industry’s fastest transient response,  
reducing the need for large banks of output capacitors and higher  
switching frequency.  
The controller meets VR(M)10.x specifications with all the required  
functions and protection features.  
32 PIN QFN, 7 x 7 mm  
MN SUFFIX  
NCP5314  
AWLYYWW  
CASE 485J  
(Bottom View)  
Features  
NCP5314  
AWLYYWW  
Switching Regulator Controller  
Programmable 2/3/4 Phase Operation  
Lossless Current Sensing  
LQFP−32  
FTB SUFFIX  
CASE 873A  
32  
2
Enhanced V Control Method Provides Fast Transient Response  
1
Programmable Up to 1.2 MHz Switching Frequency Per Phase  
0 to 100% Adjustment of Duty Cycle  
Programmable Adaptive Voltage Positioning Reduces Output  
Capacitor Requirements  
A
= Assembly Location  
= Wafer Lot  
= Year  
WL  
YY  
WW  
= Work Week  
Text orientation may vary.  
Programmable Soft Start  
Current Sharing  
PIN CONNECTIONS  
(Top View)  
Differential Current Sense Pins for Each Phase  
Current Sharing Within 10% Between Phases  
Protection Features  
Programmable Pulse−by−Pulse Current Limit for Each Phase  
“111110” and “111111” DAC Code Fault  
Latching Off Overvoltage Protection  
Programmable Latching Overcurrent Protection  
Undervoltage Lockout  
32 31 30 29 28 27 26 25  
24  
I
LIM  
V
V
V
1
2
3
4
5
6
7
8
ID2  
ID3  
ID4  
23  
22  
21  
20  
19  
18  
17  
R
V
OSC  
CC  
External Enable Control  
Three−State MOSFET Driver Control through Driver−On Signal  
GATE1  
PWRLS  
GATE2  
GATE3  
GATE4  
GND  
V
FFB  
System Power Management  
SS  
PWRGD  
DRVON  
6−Bit DAC with 0.5% Tolerance Compatible with VR(M)10.x  
Specification  
9 10 11 12 13 14 15 16  
Programmable Lower Power Good Threshold  
Power Good Output  
ORDERING INFORMATION  
Device  
Package  
Shipping  
NCP5314MNR2  
NCP5314FTR2  
*7 × 7 mm  
2000 Tape & Reel  
2000 Tape & Reel  
32 Pin QFN*  
LQFP−32*  
Semiconductor Components Industries, LLC, 2003  
1
Publication Order Number  
November, 2003 − Rev. 8  
NCP5314/D  

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