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TPS54317RHFTG4

更新时间： 2024-09-19 03:58:31
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
17页 1128K
描述
1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT CONVERTER

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中文翻译

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TPS54317RHFTG4 数据手册

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TPS54317  
www.ti.com  
SLVS619A–NOVEMBER 2005–REVISED FEBRUARY 2006  
1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT™ CONVERTER  
FEATURES  
DESCRIPTION  
•
•
•
60-mΩ MOSFET Switches for High Efficiency  
at 3-A Continuous Output Current  
As members of the SWIFT™ family of dc/dc  
regulators,  
high-output-current  
the  
TPS54317  
low-input-voltage  
PWM  
synchronous-buck  
Adjustable Output Voltage Down to 0.9 V With  
1% Accuracy  
converter integrates all required active components.  
Included on the substrate with the listed features are  
a true, high performance, voltage error amplifier that  
provides high performance under transient conditions;  
an undervoltage-lockout circuit to prevent start-up  
until the input voltage reaches 3 V; an internally and  
externally set slow-start circuit to limit in-rush  
Switching Frequency: Adjustable From  
280 kHz to 1600 kHz  
•
•
•
Externally Compensated for Design Flexibility  
Fast Transient Response  
Load Protected by Peak Current Limit and  
Thermal Shutdown  
currents; and  
a power good output useful for  
processor/logic reset, fault signaling, and supply  
sequencing.  
•
Integrated Solution Reduces Board Area and  
Total Cost  
The TPS54317 device is available in a thermally  
enhanced 24-pin QFN (RHF) PowerPAD™ package,  
which eliminates bulky heatsinks. TI provides  
evaluation modules and the SWIFT designer software  
tool to aid in achieving high-performance power  
supply designs to meet aggressive equipment  
development cycles.  
•
•
Spacing Saving 4mm x 5mm QFN Packaging  
For SWIFT Documentation, Application Notes,  
and Design Software, see the TI website at  
www.ti.com/swift  
APPLICATIONS  
•
Low-Voltage, High-Density Systems With  
Power Distributed at 5 V or 3.3 V  
•
Point of Load Regulation for High  
Performance DSPs, FPGAs, ASICs, and  
Microprocessors  
•
Broadband, Networking and Optical  
Communications Infrastructure  
EFFICIENCY  
vs  
LOAD CURRENT  
Simplified Schematic  
100  
Input  
Output  
TPS54317  
95  
90  
85  
80  
75  
70  
VIN  
PH  
PWRGD  
SS/ENA  
SYNC  
RT  
BOOT  
PGND  
VSENSE  
VBIAS  
AGND COMP  
o
= 25 C,  
65  
60  
55  
50  
T
A
V = 3.3 V,  
I
V
= 1.8 V,  
O
fs = 1.1 MHz  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
I
O
- Output Current − A  
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.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2005–2006, Texas Instruments Incorporated  
1234567...17

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TPS54317RHFTG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS54317RHFRG4 TI

完全替代

 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT CONVERTER
TPS54317RHFT TI

类似代替

 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT CONVERTER
TPS54317RHFR TI

类似代替

 1.6 MHz, 3-V TO 6-V INPUT, 3-A SYNCHRONOUS STEP-DOWN SWIFT CONVERTER

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TPS54318_1 TI

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 		2.95V To 6V Input, 3A Output, 2MHz, Synchrono
TPS54318RTER TI

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 		2.95V To 6V Input, 3A Output, 2MHz, Synchrono
TPS54318RTET TI

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TPS54319 TI

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 		2.95-V to 6-V Input, 3-A Output, 2-MHz, Synch
TPS54319_1 TI

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 		2.95-V to 6-V Input, 3-A Output, 2-MHz, Synch
TPS54319RTE TI

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 		2.95-V to 6-V Input, 3-A Output, 2-MHz, Synch
TPS54319RTER TI

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 		2.95-V to 6-V Input, 3-A Output, 2-MHz, Synch
TPS54319RTET TI

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 		2.95-V to 6-V Input, 3-A Output, 2-MHz, Synch
TPS5431DDA TI

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 		3-A, WIDE INPUT RANGE, STEP-DOWN CONVERTER

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