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TPS54339EDDAR

更新时间： 2024-11-18 12:00:35
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
21页 967K
描述
4.5V to 23V Input, 3-A Synchronous Step-Down SWIFT Converter with Eco-Mode

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TPS54339EDDAR 数据手册

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TPS54339E  
www.ti.com  
SLVSBM0A –DECEMBER 2012–REVISED DECEMBER 2012  
4.5V to 23V Input, 3-A Synchronous Step-Down SWIFT™ Converter with Eco-Mode™  
Check for Samples: TPS54339E  
1
FEATURES  
DESCRIPTION  
The TPS54339E is an adaptive on-time D-CAP2™  
mode synchronous buck converter. The TPS54339E  
enables system designers to complete the suite of  
various end-equipment power bus regulators with a  
cost effective, low component count, low standby  
current solution. The main control loop for the  
TPS54339E uses the D-CAP2™ mode control that  
provides a fast transient response with no external  
compensation components. The adaptive on-time  
control supports seamless transition between PWM  
mode at higher load conditions and Eco-mode™  
operation at light loads. Eco-mode™ allows the  
TPS54339E to maintain high efficiency during lighter  
23  
•
D-CAP2™ Mode Enables Fast Transient  
Response  
•
Low Output Ripple and Allows Ceramic Output  
Capacitor  
•
•
•
Wide VIN Input Voltage Range: 4.5 V to 23 V  
Output Voltage Range: 0.76 V to 7.0 V  
Highly Efficient Integrated FETs Optimized  
for Lower Duty Cycle Applications  
– 140 mΩ (High Side) and 70 mΩ (Low Side)  
•
•
•
•
•
•
•
High Efficiency, less than 10 μA at shutdown  
High Initial Bandgap Reference Accuracy  
Adjustable Soft Start  
load conditions. The TPS54339E 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  
TPS54339E is available in the 8-pin DDA package,  
and designed to operate from –40°C to 85°C.  
Pre-Biased Soft Start  
600-kHz Switching Frequency (fSW  
)
Cycle By Cycle Over Current Limit  
Auto-Skip Eco-mode™ for High Efficiency at  
Light Load  
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)  
VIN  
Vout (50 mV/div)  
TPS54339EDDA  
8
7
6
5
1
2
3
4
VBST  
VIN  
SS  
EN  
EN  
Iout (2 A/div)  
VOUT  
SW  
VREG5  
GND  
VFB  
VOUT  
PwPd  
9
100 us/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, Eco-mode are trademarks 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 © 2012, Texas Instruments Incorporated  
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TPS54339EDDAR 替代型号

型号 品牌 替代类型 描述 数据表
TPS54339EDDA TI

完全替代

 4.5V to 23V Input, 3-A Synchronous Step-Down SWIFT Converter with Eco-Mode
LM22673QMR-5.0/NOPB TI

类似代替

 LM22673/-Q1 42 V, 3 A SIMPLE SWITCHER®, Step
TPS54339DDA TI

类似代替

 4.5 V to 23 V Input, 3-A Synchronous Step-Down SWIFT Converter

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TPS54340B TI

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 		具有 Eco-Mode™ 的 42V 输入、3.5A、降压直流/直流转换器
TPS54340BDDA TI

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 		具有 Eco-Mode™ 的 42V 输入、3.5A、降压直流/直流转换器 | DDA |
TPS54340BDDAR TI

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 		具有 Eco-Mode™ 的 42V 输入、3.5A、降压直流/直流转换器 | DDA |
TPS54340B-Q1 TI

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TPS54340BQDDAQ1 TI

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 		具有 Eco-Mode™ 的汽车类、4.5V 至 42V 输入、3.5A 降压转换器 |
TPS54340BQDDARQ1 TI

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 		具有 Eco-Mode™ 的汽车类、4.5V 至 42V 输入、3.5A 降压转换器 |
TPS54340DDA TI

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 		42 V Input, 3.5 A, Step Down DC-DC Converter with Eco-mode
TPS54340DDAR TI

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 		42 V Input, 3.5 A, Step Down DC-DC Converter with Eco-mode
TPS54341 TI

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 		4.5-V to 42-V Input, 3.5-A Step-Down DC-DC Co

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