参数资料
| 型号： | NCP5392TMNR2G |
| 厂商： | ON Semiconductor |
| 文件页数： | 20/30页 |
| 文件大小： | 0K |
| 描述： | IC PHASE CONTROLLER 2/3/4 40-QFN |
| 标准包装： | 1 |
| 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： | 标准包装 |
| 其它名称： | NCP5392TMNR2GOSDKR |
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NCP5392T
Figure 7. 1.6 V to 0.5 V Dynamic VID response
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 standard VR11 startup routines.
The Vcore voltage ramps up 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 9. VR11.1 Startup
Figure 10. VR11.1 Biased 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)
http://onsemi.com
20
30.5 k Ω ? 20947 × 330
? 1.1262
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP5393 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393A | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393AMNR2G | 功能描述:IC PHASE CONTROLLER 2/3/4 48-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电源管理 - 专用 系列:- 应用说明:Ultrasound Imaging Systems Application Note 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:37 系列:- 应用:医疗用超声波成像，声纳 电流 - 电源:- 电源电压:2.37 V ~ 6 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:56-WFQFN 裸露焊盘 供应商设备封装:56-TQFN-EP（8x8） 包装:管件 |
| NCP5393B | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:2/3/4-Phase Controller for CPU Applications |
| NCP5393BMNR2G | 功能描述:DC/DC 开关控制器 2/3/4 PHASE CONTROL 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 |
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