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TPS54395PWPR PDF预览

TPS54395PWPR

更新时间： 2024-11-08 12:47:11
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描述
3A Dual Channel Synchronous Step-Down Switcher with Integrated FET ( SWIFT™)

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TPS54395PWPR 数据手册

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TPS54395  
www.ti.com  
SLVSBC8 –JUNE 2012  
3A Dual Channel Synchronous Step-Down Switcher with Integrated FET ( SWIFT™)  
Check for Samples: TPS54395  
1
FEATURES  
APPLICATIONS  
2
•
D-CAP2™ Control Mode  
•
Point-of-Load Regulation in Low Power  
Systems for Wide Range of Applications  
–
–
Fast Transient Response  
–
–
–
–
–
Digital TV Power Supply  
Networking Home Terminal  
Digital Set Top Box (STB)  
DVD Player/Recorder  
No External Parts Required For Loop  
Compensation  
–
Compatible with Ceramic Output  
Capacitors  
•
•
•
Wide Input Voltage Range : 4.5 V to 18 V  
Output Voltage Range : 0.76V to 7.0V  
Gaming Consoles and Other  
DESCRIPTION  
Highly Efficient Integrated FETs Optimized for  
Low Duty Cycle Applications  
The TPS54395 is a dual, adaptive on-time D-CAP2™  
mode synchronous buck converter. The TPS54395  
enables system designers to complete the suite of  
various end equipment’s power bus regulators with a  
cost effective, low component count, and low standby  
current solution. The main control loops of the  
TPS54395 use the D-CAP2™ mode control which  
provides a very fast transient response with no  
external compensation components. The adaptive on-  
time control supports seamless transition between  
PWM mode at higher load conditions and Eco-  
mode™ operation at light loads. Eco-mode™ allows  
the TPS54395 to maintain high efficiency during  
lighter load conditions. The TPS54395 is able to  
adapt to both low equivalent series resistance (ESR)  
output capacitors such as POSCAP or SP-CAP, and  
ultra-low ESR, ceramic capacitors. The device  
provides convenient and efficient operation with input  
voltages from 4.5V to 18V.  
–
90 mΩ (High Side) and 60 mΩ (Low Side)  
•
•
•
•
•
•
•
•
•
•
High Initial Reference Accuracy  
Supports Constant 3A at Both Channels  
Low-Side rDS(on) Loss-Less Current Sensing  
Adjustabel Soft Start  
Non-Sinking Pre-Biased Soft Start  
700 kHz Switching Frequency  
Cycle-by-Cycle Over-Current Limit Control  
OCL/UVLO/TSD Protections  
Hiccup Timer for Overload Protection  
Adaptive Gate Drivers with Integrated Boost  
PMOS Switch  
•
OCP Constant Due To Thermally Compensated  
rDS(on) with 4000ppm/℃  
•
•
16-Pin HTSSOP  
The TPS54395 is available in a 4.4mm×5.0mm 16 pin  
TSSOP (PWP) package, and is specified for an  
ambient temperature range from –40°C to 85°C.  
Auto-Skip Eco-mode™ꢀfor High Efficiency at  
Light Load  
Input Voltage  
Vout(50mV/div)  
1
VIN2  
VIN1  
16  
15  
C11  
2
3
VBST1  
VBST2  
C12  
VO1  
C32  
L12  
L11  
VO2  
C31  
C41  
SW2 14  
SW1  
C21  
C22  
4
5
PGND1  
EN1  
PGND213  
EN2 12  
TPS54395  
HTSSOP16  
PGND  
PGND  
Iout(2A/div)  
C42  
C5  
SS1  
6
SS2 11  
R11  
R21  
SGND  
SGND  
R12  
R22  
VFB1  
GND  
10  
VFB2  
7
8
9
100 ms/div  
VREG5  
PGND  
SGND  
SGND  
1
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.  
2
SWIFT, D-CAP2, Eco-mode, Eco-Mode 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 © 2012, Texas Instruments Incorporated  
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TPS54395PWPR 替代型号

型号 品牌 替代类型 描述 数据表
TPS54395RSAT TI

完全替代

 4.5V 至 18V 输入、双路 3A 输出、同步降压转换器 | RSA | 16 | -
TPS54395PWP TI

类似代替

 3A Dual Channel Synchronous Step-Down Switche

与TPS54395PWPR相关器件

型号 品牌 获取价格 描述 数据表
TPS54395RSAR TI

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 		4.5V 至 18V 输入、双路 3A 输出、同步降压转换器 | RSA | 16 | -
TPS54395RSAT TI

获取价格

 		4.5V 至 18V 输入、双路 3A 输出、同步降压转换器 | RSA | 16 | -
TPS543A22 TI

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 		具有 4V 至 18V 输入和高级电流模式的 12A 同步 SWIFT? 降压转换器
TPS543A22RYSR TI

获取价格

 		具有 4V 至 18V 输入和高级电流模式的 12A 同步 SWIFT™ 降压转换器 |
TPS543A26 TI

获取价格

 		具有 4V 至 18V 输入和高级电流模式的 16A 同步 SWIFT™ 降压转换器
TPS543A26RYSR TI

获取价格

 		具有 4V 至 18V 输入和高级电流模式的 16A 同步 SWIFT™ 降压转换器 |
TPS543B20 TI

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 		具有自适应内部补偿功能的 4V 至 19V、25A 同步 SWIFT™ 降压转换器
TPS543B20RVFR TI

获取价格

 		具有自适应内部补偿功能的 4V 至 19V、25A 同步 SWIFT™ 降压转换器 | R
TPS543B20RVFT TI

获取价格

 		具有自适应内部补偿功能的 4V 至 19V、25A 同步 SWIFT™ 降压转换器 | R
TPS543B22 TI

获取价格

 		具有 4V 至 18V 输入和高级电流模式的 20A 同步 SWIFT™ 降压

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