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參數資料
型號: TPS54040DGQ
廠商: TEXAS INSTRUMENTS INC
元件分類: 穩壓器
英文描述: 0.5 A SWITCHING REGULATOR, 2500 kHz SWITCHING FREQ-MAX, PDSO10
封裝: PLASTIC, MSOP-10
文件頁數: 29/47頁
文件大?。?/td> 2435K
代理商: TPS54040DGQ
2
f
gmps
gmea
p
=
÷
÷
è
è
co
out
ref
C
V
R4
V
(45)
1
2
f
p
=
p
C5
R4
m od
(46)
Re
=
o
C
sr
C6
R4
(47)
1
sw
f
p
=
C6
R4
(48)
Discontinuous Mode and Eco Mode Boundary
APPLICATION CURVES
www.ti.com................................................................................................................................................................................................... SLVS918 – MARCH 2009
Use the larger value of Equation 47 and Equation 48 to calculate the C6, to set the compensation pole.
Equation 48 yields 5.9pF so the nearest standard of 5.6pF is used.
With an input voltage of 34V, the power supply enters discontinuous mode when the output current is less than
50mA. The power supply enters EcoMode when the output current is lower than 30mA.
The input current draw at no load is 235
A.
Figure 51. Load Transient
Figure 52. Startup With VIN
Figure 53. Output Ripple CCM
Figure 54. Output Ripple, DCM
Copyright 2009, Texas Instruments Incorporated
35
Product Folder Link(s): TPS54040
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相關代理商/技術參數
參數描述
TPS54040DGQ 制造商:Texas Instruments 功能描述:Power Management IC 制造商:Texas Instruments 功能描述:IC, STEP-DOWN CONVERTER, MSOP-10
TPS54040DGQR 功能描述:直流/直流開關轉換器 3.5V-42Vin,0.5A Step Down SWIFT Convrtr RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT
TPS54040EVM-456 功能描述:電源管理IC開發工具 0.5A,12-42V In SWIFT Cnvrtr 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
TPS54040EVM-456 制造商:Texas Instruments 功能描述:EVALUATION MODULE FOR TPS54040 SWIFT(TM)
TPS54040-Q1 制造商:TI 制造商全稱:Texas Instruments 功能描述:0.5-A 42-V STEP-DOWN SWIFTa?¢ DC/DC CONVERTER WITH Eco-modea?¢
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