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TPS54972PWPRG4

更新时间： 2024-11-22 11:06:39
品牌 Logo 应用领域
德州仪器 - TI 开关双倍数据速率控制器开关式稳压器开关式控制器电源电路存储转换器开关式稳压器或控制器
页数 文件大小 规格书
16页 355K
描述
9A 有源总线终端/DDR 存储器直流/直流转换器 | PWP | 28 | -40 to 85

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TPS54972PWPRG4 数据手册

 浏览型号TPS54972PWPRG4的Datasheet PDF文件第2页浏览型号TPS54972PWPRG4的Datasheet PDF文件第3页浏览型号TPS54972PWPRG4的Datasheet PDF文件第4页浏览型号TPS54972PWPRG4的Datasheet PDF文件第5页浏览型号TPS54972PWPRG4的Datasheet PDF文件第6页浏览型号TPS54972PWPRG4的Datasheet PDF文件第7页 
6,4 mm x 9,7 mm  
TPS54972  
SLVS437A — AUGUST 2002 – REVISED DECEMBER 2002  
www.ti.com  
9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION  
SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETS (SWIFT™)  
FEATURES  
DESCRIPTION  
Tracks Externally Applied Reference Voltage  
As a member of the SWIFT™ family of dc/dc regulators,  
the TPS54972 low-input voltage high-output current  
synchronous-buck PWM converter integrates all  
required active components. Included on the substrate  
with the listed features are a true, high performance,  
voltage error amplifier that enables maximum  
performance under transient conditions and flexibility in  
choosing the output filter L and C components; an  
under-voltage-lockout circuit to prevent start-up until the  
input voltage reaches 3.0 V; an internally set slow-start  
circuit to limit in-rush currents; and a status output to  
indicate valid operating conditions.  
•
15-mΩ MOSFET Switches for High Efficiency at  
9-A Continuous Output Source or Sink Current  
•
6% to 90% VI Output Tracking Range  
•
•
•
•
Wide PWM Frequency: Fixed 350 kHz or  
Adjustable 280 kHz to 700 kHz  
Load Protected by Peak Current Limit and  
Thermal Shutdown  
Integrated Solution Reduces Board Area and  
Total Cost  
APPLICATIONS  
The TPS54972 is available in a thermally enhanced  
28-pin TSSOP (PWP) PowerPAD™ package, which  
eliminates bulky heatsinks. 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.  
DDR Memory Termination Voltage  
•
Active Termination of GTL and SSTL  
High-Speed Logic Families  
•
DAC Controlled High Current Output Stage  
•
Precision Point of Load Power Supply  
•
SIMPLIFIED SCHEMATIC  
TRANSIENT RESPONSE  
Input  
V
(DDQ)  
VIN  
PH  
V
(TTQ)  
V = 3.3 V  
I
TPS54972  
V
= 1.25 V  
O
BOOT  
PGND  
REFIN  
VBIAS  
COMP  
VSENSE  
AGND  
Compensation  
Network  
2.25 A to 6.75 A  
t – Time – µs/div  
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.  
PRODUCTION DATA information is current as of publication date. Products  
conformtospecificationsperthetermsofTexasInstrumentsstandardwarranty.  
Productionprocessingdoesnotnecessarilyincludetestingofallparameters.  
Copyright © 2002, Texas Instruments Incorporated  
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TPS54972PWPRG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS54972PWPR TI

完全替代

 9A 有源总线终端/DDR 存储器直流/直流转换器 | PWP | 28 | -40 to
TPS54972PWP TI

类似代替

 9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED

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