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参数资料
| 型号： | TPS40200HD |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 13/45页 |
| 文件大小： | 917K |
| 代理商： | TPS40200HD |
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Notes
R6 =26.7k for 3.3 Vout, R6 = 16.2k for 5.0 Vout
+
D3 : Do not populate. SOT 23 Common Cathode Dual Schottky
ISNS
VDD
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
SGLS400B – OCTOBER 2009 – REVISED MAY 2010
www.ti.com
EXAMPLE APPLICATIONS
Application 1: Buck Regulator, 8-V to 12-V Input, 3.3 V or 5 V at 2.5-A Output
Overview
The buck regulator design shown in Figure 32 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 5. The efficiency and load regulation from boards
built from this design are shown in Figure 33 and Figure 34. Gerber files and additional application information
are available from the factory.
Figure 32. 8-V to 16-V VIN Step-Down Buck Converter
Figure 33. Full-Load Efficiency at 5-V VOUT
Figure 34. Full-Load Efficiency at 3.3-V VOUT
20
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TPS40200-HT
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS40200-HT | 制造商:TI 制造商全称:Texas Instruments 功能描述:WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER |
| TPS40200MDREP | 功能描述:DC/DC 开关控制器 Mil Enhanced Nonsync Vltg-Mode Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| TPS40200MDREPG4 | 功能描述:电压模式 PWM 控制器 EP DC/DC CONTROLLER RoHS:否 制造商:Texas Instruments 输出端数量:1 拓扑结构:Buck 输出电压:34 V 输出电流: 开关频率: 工作电源电压:4.5 V to 5.5 V 电源电流:600 uA 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装 / 箱体:WSON-8 封装:Reel |
| TPS40200-Q1 | 制造商:TI 制造商全称:Texas Instruments 功能描述:WIDE-INPUT-RANGE NONSYNCHRONOUS VOLTAGE-MODE CONTROLLER |
| TPS40200QDRQ1 | 功能描述:DC/DC 开关控制器 Wide-Inp-Rng Nonsync Vltg-Mode Cntrlr RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
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