參數(shù)資料
型號(hào)： TPS40090QPWRQ1
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： SWITCHING CONTROLLER, 1200 kHz SWITCHING FREQ-MAX, PDSO24
封裝： GREEN, PLASTIC, TSSOP-24
文件頁(yè)數(shù)： 5/23頁(yè)
文件大?。?/td> 309K
代理商： TPS40090QPWRQ1
DROOP CURRENT
vs
CS VOLTAGE
0
10
20
30
40
50
60
70
0
0.05
0.1
0.15
0.2
0.25
0.3
VCS - V
ID
R
O
P
-
A
f
OP +
1
2p
R
OUT
C
OUT
f
ESRZ +
1
2p
R
ESR
C
OUT
SLUS845C
– JUNE 2008 – REVISED MAY 2011
Figure 6.
Feedback Loop Compensation
The TPS40090 operates in a peak current mode and the converter exhibits a single pole response with ESR
zero for which Type II compensation network is usually adequate, as shown in Figure 8.
The following equations show where the load pole and ESR zero calculations are situated.
(10)
To achieve desired bandwidth the error amplifier must compensate for modulator gain loss on the crossover
frequency and this is facilitated by placing the zero over the load pole. The ESR zero alters the modulator's -1
slope at higher frequencies. To compensate for that alteration, the pole in-error amplifier transfer function should
be added at frequency of the ESR zero as shown in Figure 7.
Copyright
2008–2011, Texas Instruments Incorporated
13
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TPS40090RHDR 功能描述:DC/DC 開(kāi)關(guān)控制器 4 Ch Multiph Buck DC/DC Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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(fēng)格: 封裝 / 箱體:CPAK
TPS40090RHDRG4 功能描述:DC/DC 開(kāi)關(guān)控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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(fēng)格: 封裝 / 箱體:CPAK
TPS40090RHDT 功能描述:DC/DC 開(kāi)關(guān)控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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(fēng)格: 封裝 / 箱體:CPAK
TPS40090RHDTG4 功能描述:DC/DC 開(kāi)關(guān)控制器 4Ch Multiphase Buck DC/DC Cntrlr RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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(fēng)格: 封裝 / 箱體:CPAK
TPS40091 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:HIGH FREQUENCY MULTIPHASE CONTROLLER
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