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TPS5430数据手册

更新时间：2019-09-03 14:01:58 大小：1M 上传用户：XIEXIAO12569查看TA发布的资源 标签：tps5430 下载积分：2分 评价赚积分 （如何评价?） 打赏 收藏 评论(0) 举报

资料介绍

TPS5430官方数据手册，使用手册。

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文件名 大小
TPS5430.pdf 1M

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TPS5430  
www.ti.com  
SLVS632–JANUARY 2006  
5.5-V to 36-V, 3-A STEP-DOWN SWIFT™ CONVERTER  
FEATURES  
APPLICATIONS  
•
•
•
•
Consumer: Set-top Box, DVD, LCD Displays  
Industrial and Car Audio Power Supplies  
Battery Chargers, High Power LED Supply  
12V/24V Distributed Power Systems  
•
Wide Input Voltage Range: 5.5 V to 36 V  
•
Up to 3-A Continuous (4-A Peak) Output  
Current  
•
•
•
•
•
•
•
•
•
High Efficiency up to 95% Enabled by 110-mΩ  
Integrated MOSFET Switch  
DESCRIPTION  
Wide Output Voltage Range: Adjustable Down  
to 1.22 V with 1.5% Initial Accuracy  
As a member of the SWIFT™ family of DC/DC  
regulators, the TPS5430 is a high-output-current  
PWM converter that integrates a low resistance high  
side N-channel MOSFET. Included on the substrate  
with the listed features are a high performance  
voltage error amplifier that provides tight voltage  
regulation accuracy under transient conditions; an  
under-voltage-lockout circuit to prevent start-up until  
the input voltage reaches 5.5V; an internally set  
slow-start circuit to limit inrush currents; and a voltage  
feed-forward circuit to improve the transient  
response. Other features include an active high  
enable, over current protection and thermal  
shutdown. To reduce design complexity and external  
component count, the TPS5430 feedback loop is  
internally compensated.  
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 Over Current Limiting  
and Thermal Shutdown  
–40°C to 125°C Operating Junction  
Temperature Range  
Available in Small Thermally Enhanced 8-Pin  
SOIC PowerPAD™ Package  
For SWIFT Documentation, Application Notes  
and Design See the TI Website at  
www.ti.com/swift  
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.  
100  
95  
90  
85  
80  
75  
70  
65  
SIMPLIFIED SCHEMATIC  
VIN  
VOUT  
VIN  
PH  
TPS5430  
BOOT  
NC  
NC  
VSENSE  
ENA  
V
I
=�12�V,  
60  
GND  
V
0
=�5�V,  
55  
fs�=�500�kHz  
50  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
I
− Output�Current − A  
O
Efficiency�vs�Output�Current  
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.  
SWIFT, PowerPAD are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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