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參數資料
型號: TPS65251RHAR
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: SWITCHING REGULATOR, PQCC40
封裝: 6 X 6 MM, GREEN, PLASTIC, VQFN-40
文件頁數: 8/31頁
文件大小: 1827K
代理商: TPS65251RHAR
Current Sense
I/V Gain
V
.
V
ref
8
0
=
o
V
L
i
ESR
R
1
R
2
R
c
R
o
C
c
C
Roll
C
ff
C
L
R
u
g M
130
=
COMPx
FBx
Gm=10A /V
SLVSAA4B – JUNE 2010 – REVISED JANUARY 2011
www.ti.com
Loop Compensation
TPS65251 is a current mode control dc/dc converter. The error amplifier is a transconductance amplifier with a of
130 A/V.
A typical compensation circuit could be type II (Rc and Cc) to have a phase margin between 60 and 90 degrees,
or type III (Rc, Cc and Cff) to improve the converter transient response. CRoll adds a high frequency pole to
attenuate high-frequency noise when needed. . It may also prevent noise coupling from other rails if there is
possibility of cross coupling in between rails when layout is very compact.
Figure 23. Loop Compensation
16
Copyright 2010–2011, Texas Instruments Incorporated
Product Folder Link(s): TPS65251
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相關代理商/技術參數
參數描述
TPS65251RHAT 功能描述:PMIC 解決方案 PMU with 3 DC/DC Converters RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65252EVM 功能描述:電源管理IC開發工具 TPS65252 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
TPS65252RHDR 功能描述:PMIC 解決方案 4.5-16V Inp w/ 2 BUCK CONVERTER RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65252RHDT 功能描述:PMIC 解決方案 4.5-16V Inp w/ 2 BUCK CONVERTER RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel
TPS65253EVM 功能描述:電源管理IC開發工具 TPS65253 Eval Mod RoHS:否 制造商:Maxim Integrated 產品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
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