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TPS54973PWP PDF预览

TPS54973PWP

更新时间： 2024-11-05 22:49:39
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管输出元件输入元件PC
页数 文件大小 规格书
18页 279K
描述
3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-UP

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中文翻译

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TPS54973PWP 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SSOP
包装说明：HTSSOP-28针数：28
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：0.88Samacsys Confidence：3
Samacsys Status：ReleasedSamacsys PartID：616666
Samacsys Pin Count：29Samacsys Part Category：Integrated Circuit
Samacsys Package Category：Small Outline PackagesSamacsys Footprint Name：tssop-29
Samacsys Released Date：2020-04-14 17:00:15Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：VOLTAGE-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：4 V
最小输入电压：3 V标称输入电压：3.3 V
JESD-30 代码：R-PDSO-G28JESD-609代码：e4
长度：9.7 mm湿度敏感等级：2
功能数量：1端子数量：28
最高工作温度：85 °C最低工作温度：-40 °C
最大输出电流：16 A最大输出电压：2.5 V
最小输出电压：0.9 V封装主体材料：PLASTIC/EPOXY
封装代码：HTSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1.2 mm
表面贴装：YES切换器配置：BUCK
最大切换频率：700 kHz温度等级：INDUSTRIAL
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4.4 mm
Base Number Matches：1

TPS54973PWP 数据手册

 浏览型号TPS54973PWP的Datasheet PDF文件第2页浏览型号TPS54973PWP的Datasheet PDF文件第3页浏览型号TPS54973PWP的Datasheet PDF文件第4页浏览型号TPS54973PWP的Datasheet PDF文件第5页浏览型号TPS54973PWP的Datasheet PDF文件第6页浏览型号TPS54973PWP的Datasheet PDF文件第7页 
Typical Size  
6,4 mm X 9,7 mm  
www.ti.com  
TPS54973  
SLVS453A − FEBRUARY 2003 − REVISED FEBRUARY 2005  
3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK  
SWITCHER WITH DISABLED SINKING DURING START-UP  
FEATURES  
DESCRIPTION  
D
15-mΩ MOSFET Switches for High Efficiency  
at 9-A Continuous Output Source or Sink  
Current  
As a member of the SWIFT™ family of dc/dc regulators,  
the TPS54973 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 and flexibility in choosing the output filter  
L and C components; an undervoltage-lockout circuit to  
prevent start-up until the input voltage reaches 3 V; an  
internally or externally set slow-start circuit to limit  
in-rush currents; and a power good output useful for  
processor/logic reset, fault signaling, and supply  
sequencing.  
D
D
D
Disabled Current Sinking During Start-Up  
0.9-V to 2.5-V Adjustable Output Voltage  
Range With 1.0% Accuracy  
Wide PWM Frequency:  
Fixed 350 kHz, 550 kHz or  
Adjustable 280 kHz to 700 kHz  
D
D
D
Synchronizable to 700 kHz  
Load Protected by Peak Current Limit and  
Thermal Shutdown  
Integrated Solution Reduces Board Area and  
Component Count  
For reliable power up in output precharge applications,  
the TPS54973 is designed to only source current during  
startup.  
APPLICATIONS  
D
D
Low-Voltage, High-Density Distributed Power  
Systems  
The TPS54973 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.  
Point of Load Regulation for High  
Performance DSPs, FPGAs, ASICs and  
Microprocessors  
D
D
Broadband, Networking and Optical  
Communications Infrastructure  
Power PC Series Processors  
TYPICAL APPLICATION  
START-UP WAVEFORM  
*
*
R
L
= 1 Ω  
I/O Supply  
Core Supply  
VIN  
PH  
V
= 3.3 V  
TPS54973  
I/O  
BOOT  
PGND  
VSENSE  
VBIAS  
AGND COMP  
V
= 1.8 V  
(core)  
t − Time − 10 ms/div  
* Optional  
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.  
PowerPAD and SWIFT are trademarks of Texas Instruments.  
PRODUCTION DATA information is current as of publication date. Products  
conform to specifications per the terms of Texas Instruments standard warranty.  
Production processing does not necessarily include testing of all parameters.  
Copyright © 2002−2003, Texas Instruments Incorporated  
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TPS54973PWP 替代型号

型号 品牌 替代类型 描述 数据表
TPS54973PWPR TI

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 3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-
TPS54973PWPRG4 TI

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 3-V TO 4-V INPUT, 9-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-

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