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參數(shù)資料
| 型號： | TPS40200MDREPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | GREEN, PLASTIC, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 9/43頁 |
| 文件大?。?/td> | 1069K |
| 代理商： | TPS40200MDREPG4 |
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EXAMPLE APPLICATIONS
Application 1: Buck Regulator, 8-V to 12-V Input, 3.3 V or 5 V at 2.5-A Output
Overview
Notes
R6=26.7kfor3.3Vout,R6=16.2kfor5.0Vout
+
D3:Donotpopulate.SOT23CommonCathodeDualSchottky
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
LoadCurrent- A
Efficiency-%
V
=8V
V
=12V
V
=16V
IN
V
=5V
OUT
0
0.5
1
1.5
2
2.5
3
LoadCurrent- A
Efficiency-%
50
60
70
80
90
100
V
=8V
V
=12V
V
=16V
IN
V
=3.3V
OUT
SGLS371 – JANUARY 2007
The buck regulator design shown in Figure 31 illustrates the use of the TPS40200. It delivers 2.5 A at either
3.3 V or 5 V as selected by a single feedback resistor. It achieves approximately 90% efficiency at 3.3 V and
94% at 5 V. A discussion of design tradeoffs and methodology is included to serve as a guide to the successful
design of forward converters using the TPS40200.
The Bill of Materials (BOM) for this application is given in Table 2. The efficiency and load regulation from
boards built from this design are shown in Figure 32 and Figure 33. Gerber files and additional application
information are available from the factory.
Figure 31. 8-V to 16-V VIN Step-Down Buck Converter
Figure 32. Full-Load Efficiency at 5-V VOUT
Figure 33. Full-Load Efficiency at 3.3-V VOUT
17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPS40200-Q1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER |
| TPS40200QDRQ1 | 功能描述:DC/DC 開關(guān)控制器 Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr 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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40200SHKJ | 功能描述:DC/DC 開關(guān)控制器 Wide Inp Non-Sync Buck DC/DC Cntrlr 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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40200SHKQ | 功能描述:DC/DC 開關(guān)控制器 Hi Temp Non-Sync Buck DC/DC Cntlr 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(fēng)格: 封裝 / 箱體:CPAK |
| TPS40200SKGD1 | 功能描述:DC/DC 開關(guān)控制器 Wide Input Non-Synch 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(fēng)格: 封裝 / 箱體:CPAK |
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