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TPS54327

更新时间： 2024-09-15 11:52:47
品牌 Logo 应用领域
德州仪器 - TI 输出元件
页数 文件大小 规格书
20页 568K
描述
3-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET (SWIFTTM )

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中文翻译

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TPS54327 数据手册

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TPS54327  
www.ti.com  
SLVSAG1 –NOVEMBER 2010  
3-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER  
TM  
WITH INTEGRATED FET (SWIFT )  
Check for Samples: TPS54327  
1
FEATURES  
DESCRIPTION  
23  
•
D-CAP2™ Mode Enables Fast Transient  
Response  
The TPS54327 is an adaptive on-time D-CAP2™  
mode synchronous buck converter. TheTPS54327  
enables system designers to complete the suite of  
various end equipment’s power bus regulators with a  
cost effective, low component count, low standby  
current solution. The main control loop for the  
TPS54327 uses the D-CAP2™ mode control which  
provides a fast transient response with no external  
compensation components. The TPS54327 also has  
a proprietary circuit that enables the device to adopt  
to both low equivalent series resistance (ESR) output  
capacitors, such as POSCAP or SP-CAP, and  
ultra-low ESR ceramic capacitors. The device  
operates from 4.5-V to 18-V VIN input. The output  
voltage can be programmed between 0.76 V and 7 V.  
The device also features an adjustable soft start time.  
The TPS54327 is available in the 8-pin DDA  
package, and designed to operate from –40°C to  
85°C.  
•
Low Output Ripple and Allows Ceramic Output  
Capacitor  
•
•
•
Wide VIN Input Voltage Range: 4.5 V to 18 V  
Output Voltage Range: 0.76 V to 7.0 V  
Highly Efficient Integrated FET’s Optimized  
for Lower Duty Cycle Applications  
– 100 mΩ (High Side) and 70 mΩ (Low Side)  
•
•
•
•
•
•
High Efficiency, less than 10 mA at shutdown  
High Initial Bandgap Reference Accuracy  
Adjustable Soft Start  
Pre-Biased Soft Start  
700-kHz Switching Frequency (fSW  
)
Cycle By Cycle Over Current Limit  
APPLICATIONS  
•
Wide Range of Applications for Low Voltage  
System  
–
–
–
–
Digital TV Power Supply  
High Definition Blu-ray Disc™ Players  
Networking Home Terminal  
Digital Set Top Box (STB)  
Vout (50 mV/div)  
Iout (2A/div)  
100 ms/div  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
D-CAP2 is a trademark of Texas Instruments.  
Blu-ray Disc is a trademark of Blu-ray Disc Association.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2010, Texas Instruments Incorporated  
1234567...20

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TPS54327 替代型号

型号 品牌 替代类型 描述 数据表
TPS54527 TI

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 4.5V to 18V Input, 5-A SYNCHRONOUS STEP DOWN CONVERTER
TPS54227 TI

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 4.5V to 18V Input, 2-A SYNCHRONOUS STEP DOWN SWIFT
TPS54228 TI

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 4.5V to 18V Input, 2-A Synchronous Step-Down SWIFT

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TPS54327DDA TI

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 		3-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET (SWIFTTM )
TPS54327DDAR TI

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 		3-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET (SWIFTTM )
TPS54327DRCR TI

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 		4.5V 至 18V 输入，3A 同步降压转换器 | DRC | 10 | -40 to
TPS54327DRCT TI

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 		4.5V 至 18V 输入，3A 同步降压转换器 | DRC | 10 | -40 to
TPS54327EVM-686 TI

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 		3-A, SWIFT? Regulator Evaluation Module
TPS54328 TI

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 		4.5V to 18V Input, 3-A Synchronous Step-Down SWIFT? Converter with Eco-Mode?
TPS54328DDA TI

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 		4.5V to 18V Input, 3-A Synchronous Step-Down SWIFT? Converter with Eco-Mode?
TPS54328DDAR TI

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 		4.5V to 18V Input, 3-A Synchronous Step-Down SWIFT? Converter with Eco-Mode?
TPS54328DRCR TI

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 		具有 Eco-Mode™ 的 4.5V 至 18V 输入，3A 同步降压转换器 | DRC
TPS54328DRCT TI

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 		具有 Eco-Mode™ 的 4.5V 至 18V 输入，3A 同步降压转换器 | DRC

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