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TPS54873PWPRG4 PDF预览

TPS54873PWPRG4

更新时间： 2024-11-18 15:54:59
品牌 Logo 应用领域
德州仪器 - TI 开关光电二极管
页数 文件大小 规格书
23页 713K
描述
12A SWITCHING REGULATOR, 762kHz SWITCHING FREQ-MAX, PDSO28, GREEN, PLASTIC, HTSSOP-28

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TPS54873PWPRG4 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Obsolete零件包装代码：SSOP
包装说明：GREEN, PLASTIC, HTSSOP-28针数：28
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.23
Is 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：6 V最小输入电压：4 V
标称输入电压：4.5 VJESD-30 代码：R-PDSO-G28
JESD-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：12 A
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP28,.25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
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：762 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 mmBase Number Matches：1

TPS54873PWPRG4 数据手册

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Typical Size  
6,4 mm X 9,7 mm  
www.ti.com  
TPS54873  
SLVS444A − OCTOBER 2002 − REVISED FEBRUARY 2005  
4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK  
SWITCHER WITH DISABLED SINKING DURING START-UP  
FEATURES  
DESCRIPTION  
D
30-mΩ, 12-A Peak MOSFET Switches for High  
Efficiency at 8-A Continuous Output Source  
or Sink Current  
As a member of the SWIFT™ family of dc/dc regulators,  
the TPS54873 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 under-voltage-lockout circuit  
to prevent start-up until the input voltage reaches 4 V;  
an internally or externally set slow-start circuit to limit  
inrush 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 3.3-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
Synchronizable to 700 kHz  
Load Protected by Peak Current Limit and  
Thermal Shutdown  
D
Integrated Solution Reduces Board Area and  
Component Count  
For reliable power up in output precharge applications,  
the TPS54873 is designed to only source current during  
startup.  
APPLICATIONS  
The TPS54873 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.  
D
D
Low-Voltage, High-Density Distributed Power  
Systems  
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  
I/O Supply  
VIN  
Core Supply  
V = 5 V  
I
PH  
TPS54873  
BOOT  
PGND  
VSENSE  
VBIAS  
V
= 3.3 V  
O
AGND COMP  
5.0 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, Texas Instruments Incorporated  
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TPS54873PWPRG4 替代型号

型号 品牌 替代类型 描述 数据表
TPS54873PWPR TI

类似代替

 4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-
TPS54873PWP TI

类似代替

 4-V TO 6-V INPUT, 8-A OUTPUT SYNCHRONOUS BUCK SWITCHER WITH DISABLED SINKING DURING START-

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