参数资料
| 型号： | NCP5392PMNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 22/32页 |
| 文件大小： | 0K |
| 描述： | IC CTLR BUCK 2/3/4PHASE 40QFN |
| 标准包装： | 2,500 |
| 应用： | 控制器，Intel VR11，VR11.1，AMD CPU |
| 输入电压： | 4.75 V ~ 5.25 V |
| 输出数： | 4 |
| 输出电压： | 0.375 V ~ 1.6 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 40-VFQFN 裸露焊盘 |
| 供应商设备封装： | 40-QFN（6x6） |
| 包装： | 带卷 (TR) |
| 其它名称： | NCP5392PMNR2G-ND NCP5392PMNR2GOSTR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页当前第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
NCP5392P
Figure 8. Dynamic VID Settling Time Rising
(CH1: VID1, CH2: DAC, CH3:VCCP)
Design Methodology
Decoupling the V CC Pin on the IC
An RC input filter is required as shown in the V CC pin to
minimize supply noise on the IC. The resistor should be
sized such that it does not generate a large voltage drop
between 5 V supply and the IC.
Understanding Soft--Start
The controller supports two different startup routines. An
AMD ramp to the initial VID code, or a VR11 Ramp to the
1.1 V boot voltage, with a pause to capture the VID code
then resume ramping to target value based on internal slew
rate limit. The initial ramp rate was set to be 0.8 mV/ m S.
Figure 10. AMD Startup
Programming the Current Limit and the Oscillator
Frequency
The demo board is set for an operating frequency of
approximately 330 kHz. The R OSC pin provides a 2.0 V
reference voltage which is divided down with a resistor
divider and fed into the current limit pin ILIM. Then
calculate the individual RLIM1 and RLIM2 values for the
divider. The series resistors RLIM1 and RLIM2 sink
current from the ILIM pin to ground. This current is
internally mirrored into a capacitor to create an oscillator.
The period is proportional to the resistance and frequency
is inversely proportional to the total resistance. The total
resistance may be estimated by Equation 1. This equation
is valid for the individual phase frequency in both three and
four phase mode.
R osc ? 20947 × F SW ? 1.1262
(eq. 1)
Figure 9. VR11.1 Startup
http://onsemi.com
22
30.5 k Ω ? 20947 × 330
? 1.1262
相关PDF资料 |
PDF描述 |
|---|---|
| NCP5392QMNR2G | IC PHASE CONTROLLER 2/3/4 40-QFN |
| NCP5392TMNR2G | IC PHASE CONTROLLER 2/3/4 40-QFN |
| NCP5393BMNR2G | IC CTLR 2/3/4PHASE CPU 48QFN |
| NCP5395GMNR2G | IC PHASE CONTROLLER 2/3/4 48-QFN |
| NCP5395MNR2G | IC PHASE CONTROLLER 2/3/4 48-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5392Q | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5392QMNR2G | 功能描述:DC/DC 开关控制器 2/3/4 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5392T | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller with Light Load Power Saving Enhancement for CPU Applications |
| NCP5392TMNR2G | 功能描述:DC/DC 开关控制器 2/3/4 PHASE CONTROLLER RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| NCP5393 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
发布紧急采购，3分钟左右您将得到回复。