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參數(shù)資料
| 型號： | L6713A |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 2/3 Phase controller with embedded drivers for Intel VR10, VR11 and AMD 6 bit CPUs |
| 中文描述： | 2 / 3為英特爾VR10，VR11和AMD的嵌入式驅(qū)動器相控制器6位CPU |
| 文件頁數(shù)： | 30/64頁 |
| 文件大?。?/td> | 515K |
| 代理商： | L6713A |
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Voltage positioning
L6713A
36/64
12.2
Droop function (Optional)
This method "recovers" part of the drop due to the output capacitor ESR in the load
transient, introducing a dependence of the output voltage on the load current: a static error
proportional to the output current causes the output voltage to vary according to the sensed
current.
As shown in Figure 11, the ESR drop is present in any case, but using the droop function
the total deviation of the output voltage is minimized.Moreover, more and more high-
performance CPUs require precise load-line regulation to perform in the proper way.
DROOP function is not then required only to optimize the output filter, but also beacomes a
requirement of the load.
Connecting DROOP pin and FB pin together, the device forces a current IDROOP,
proportional to the read current, into the feedback resistor (RFB+ROFFSET) implementing the
load regulation dependence. Since IDROOP depends on the current information about the N
phases, the output characteristic vs. load current is then given by (neglecting the OFFSET
voltage term):
Where DCR is the inductor parasite resistance (or sense resistor when used) and IOUT is the
output current of the system. The whole power supply can be then represented by a "real"
voltage generator with an equivalent output resistance RDROOP and a voltage value of VREF.
RFB resistor can be also designed according to the RDROOP specifications as follow:
Droop function is optional, in case it is not desired, the DROOP pin can be disconnected
from the FB and an information about the total delivered current becomes available for
debugging, and/or current monitoring. When not used, the pin can be shorted to SGND.
V
OUT
V
REF
R
FB
R
OFFSET
+
() I
DROOP
–
=
V
REF
R
FB
R
OFFSET
+
()
DCR
Rg
-------------
I
OUT
–
V
REF
R
DROOP
I
OUT
–
=
R
FB
R
DROOP
Rg
DCR
-------------
R
OFFSET
–
=
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相關(guān)代理商/技術(shù)參數(shù) |
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| L6713A_0805 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:2/3/4 phase controller with embedded drivers for Intel VR11.1 |
| L6713ATR | 功能描述:DC/DC 開關(guān)控制器 2/3 Phase controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| L6714 | 功能描述:功率驅(qū)動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6714TR | 功能描述:功率驅(qū)動器IC 4 Phase Controller RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L6716 | 制造商:STMicroelectronics 功能描述:DC DC Cntrlr Quad-OUT Sync Step Down 48-Pin VFQFPN EP Tray 制造商:STMicroelectronics 功能描述:HANDHELD & COMPUTER PM - Trays 制造商:STMicroelectronics 功能描述:2/3/4 Phase Controlr Embedded Driver |
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