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TPS5430-EP

更新时间： 2024-11-29 11:58:27
品牌 Logo 应用领域
德州仪器 - TI 转换器输入元件
页数 文件大小 规格书
28页 914K
描述
3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT™ CONVERTER

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TPS5430-EP 数据手册

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TPS5430-EP  
www.ti.com................................................................................................................................................................................................... SLVS911–MARCH 2009  
3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT™ CONVERTER  
1
FEATURES  
DESCRIPTION  
2
•
Wide Input Voltage Range: 5.5 V to 36 V  
•
Up to 3-A Continuous (4-A Peak) Output  
Current  
As a member of the SWIFT™ family of dc/dc  
regulators, the TPS5430 is a high-output-current  
pulse-width modulation (PWM) converter that  
•
•
•
•
•
•
High Efficiency up to 95% Enabled by 110-mΩ  
Integrated MOSFET Switch  
integrates  
MOSFET. Included on the substrate with the listed  
features are high-performance voltage error  
a
low-resistance high-side N-channel  
Wide Output Voltage Range: Adjustable Down  
to 1.22 V With 1.5% Initial Accuracy  
a
amplifier that provides tight voltage regulation  
accuracy under transient conditions, an undervoltage  
lockout (UVLO) circuit to prevent start-up until the  
input voltage reaches 5.5 V, an internally set  
slow-start circuit to limit inrush currents, and a voltage  
feed-forward circuit to improve the transient  
response. Using the enable (ENA) pin, shutdown  
supply current is reduced to 18 µA typically. Other  
features include an active-high enable, overcurrent  
limiting, overvoltage protection (OVP) and thermal  
shutdown. To reduce design complexity and external  
component count, the TPS5430 feedback loop is  
internally compensated. The TPS5430 regulates a  
wide variety of power sources including 24-V buses.  
Internal Compensation Minimizes External  
Parts Count  
Fixed 500-kHz Switching Frequency for Small  
Filter Size  
Improved Line Regulation and Transient  
Response by Input Voltage Feed Forward  
System Protected by Overcurrent Limiting,  
Overvoltage Protection, and Thermal  
Shutdown  
•
•
•
–55°C to 125°C Operating Junction  
Temperature Range  
Available in Small Thermally Enhanced 8-Pin  
SOIC PowerPAD™ Package  
The TPS5430 device is available in a thermally  
enhanced, easy-to-use 8-pin SOIC PowerPAD™  
package. TI provides evaluation modules and the  
SWIFT Designer software tool to aid in quickly  
achieving high-performance power supply designs to  
meet aggressive equipment development cycles.  
For SWIFT™ Documentation, Application  
Notes, and Design Software, See the TI  
Website at www.ti.com/swift  
SUPPORTS DEFENSE, AEROSPACE,  
AND MEDICAL APPLICATIONS  
•
•
•
•
Controlled Baseline  
One Assembly/Test Site  
One Fabrication Site  
Available in Military (–55°C/125°C)  
Temperature Range(1)  
•
•
•
Extended Product Life Cycle  
Extended Product-Change Notification  
Product Traceability  
APPLICATIONS  
•
•
•
Industrial and Car Audio Power Supplies  
Battery Chargers, High-Power LED Supplies  
12-V/24-V Distributed Power Systems  
(1) Additional temperature ranges are available - contact factory  
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
PowerPAD, SWIFT are trademarks of Texas Instruments.  
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 © 2009, Texas Instruments Incorporated  
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