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TPS54140ADRC PDF预览

TPS54140ADRC

更新时间： 2024-11-20 11:58:23
品牌 Logo 应用领域
德州仪器 - TI 转换器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
页数 文件大小 规格书
51页 1992K
描述
1.5-A, 42 V Step Down SWIFT™ DC/DC Converter with Eco-mode™

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TPS54140ADRC 技术参数

生命周期：Obsolete零件包装代码：SON
包装说明：GREEN, PLASTIC, VSON-10针数：10
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.74
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：42 V最小输入电压：3.5 V
标称输入电压：12 VJESD-30 代码：S-PDSO-N10
JESD-609代码：e4长度：3 mm
功能数量：1端子数量：10
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度：1 mm表面贴装：YES
切换器配置：BUCK最大切换频率：2500 kHz
端子面层：NICKEL PALLADIUM GOLD端子形式：NO LEAD
端子节距：0.5 mm端子位置：DUAL
宽度：3 mmBase Number Matches：1

TPS54140ADRC 数据手册

 浏览型号TPS54140ADRC的Datasheet PDF文件第2页浏览型号TPS54140ADRC的Datasheet PDF文件第3页浏览型号TPS54140ADRC的Datasheet PDF文件第4页浏览型号TPS54140ADRC的Datasheet PDF文件第5页浏览型号TPS54140ADRC的Datasheet PDF文件第6页浏览型号TPS54140ADRC的Datasheet PDF文件第7页 
TPS54140A  
www.ti.com  
SLVSB55A –MAY 2012–REVISED JULY 2012  
1.5-A, 42 V Step Down  
SWIFT™ DC/DC Converter with Eco-mode™  
Check for Samples: TPS54140A  
1
FEATURES  
23  
•
3.5 V to 42 V Input Voltage Range  
•
•
0.8-V Internal Voltage Reference  
•
200-mΩ High-Side MOSFET  
MSOP10 and 3mm x 3mm VSON-10 Package  
With PowerPAD™  
Supported by WEBENCH® and SwitcherPro™  
Software Tool  
•
High Efficiency at Light Loads with a Pulse  
Skipping Eco-mode™  
•
•
•
Tighter Enable Threshold than TPS54140 for  
More Accurate UVLO Voltage  
For SWIFT™ Documentation, See the TI  
Website at http://www.ti.com/swift  
•
•
•
•
•
•
•
Adjustable UVLO Voltage and Hysteresis  
116 μA Operating Quiescent Current  
1.3 μA Shutdown Current  
APPLICATIONS  
•
12-V and 24-V Industrial and Commercial Low  
Power Systems  
100 kHz to 2.5 MHz Switching Frequency  
Synchronizes to External Clock  
Adjustable Slow Start/Sequencing  
UV and OV Power Good Output  
•
Aftermarket Auto Accessories: Video, GPS,  
Entertainment  
DESCRIPTION  
The TPS54140A device is a 42 V, 1.5 A, step down regulator with an integrated high side MOSFET. Current  
mode control provides simple external compensation and flexible component selection. A low ripple pulse skip  
mode reduces the no load, regulated output supply current to 116 μA. Using the enable pin, shutdown supply  
current is reduced to 1.3 μA.  
Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage  
startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open  
drain power good signal indicates the output is within 94% to 107% of its nominal voltage.  
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold  
back and thermal shutdown protects the part during an overload condition.  
SIMPLIFIED SCHEMATIC  
EFFICIENCY  
vs  
LOAD CURRENT  
VIN  
PWRGD  
VIN  
TPS54140A  
90  
85  
80  
75  
70  
65  
60  
55  
50  
BOOT  
PH  
EN  
VOUT  
SS/TR  
RT/CLK  
COMP  
VSENSE  
GND  
VI = 12 V,  
VO = 3.3 V,  
fsw = 1200 kHz  
0
0.25  
0.50 0.75  
1
1.25 1.50  
1.75  
2
Load Current - A  
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.  
Eco-mode, PowerPAD, SwitcherPro, SWIFT are trademarks of Texas Instruments.  
2
3
WEBENCH is a registered trademark 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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