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TPS54260-Q1 PDF预览

TPS54260-Q1

更新时间: 2024-11-26 12:21:47
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
48页 1479K
描述
3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE™

TPS54260-Q1 数据手册

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TPS54260-Q1  
www.ti.com  
SLVSAH8A DECEMBER 2010REVISED APRIL 2011  
3.5 V to 60 V STEP DOWN CONVERTER WITH ECO-MODE  
Check for Samples: TPS54260-Q1  
1
FEATURES  
0.8-V Internal Voltage Reference  
MSOP10 Package With PowerPAD  
2
Qualified for Automotive Applications  
3.5 V to 60 V Input Voltage Range  
200-mHigh-Side MOSFET  
Supported by SwitcherProSoftware Tool  
(http://focus.ti.com/docs/toolsw/folders/print/s  
witcherpro.html)  
High Efficiency at Light Loads with a Pulse  
Skipping Eco-Mode™  
For SWIFTDocumentation, See the TI  
Website at http://www.ti.com/swift  
138μA Operating Quiescent Current  
1.3μA Shutdown Current  
APPLICATIONS  
100kHz to 2.5MHz Switching Frequency  
Synchronizes to External Clock  
Adjustable Slow Start/Sequencing  
UV and OV Power Good Output  
Adjustable UVLO Voltage and Hysteresis  
12-V and 24-V Industrial and Commercial Low  
Power Systems  
GSM, GPRS Modules in Fleet Management,  
E-Meters, and Security Systems  
DESCRIPTION  
The TPS54260-Q1 device is a 60 V, 2.5 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 138 μA. Using the enable pin, shutdown supply  
current is reduced to 1.3 μA, when the enable pin is low.  
Under voltage lockout is internally set at 2.5V, 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.  
The TPS54260-Q1 is available in 10-pin thermally enhanced MSOP Power Padpackage.  
SIMPLIFIED SCHEMATIC  
EFFICIENCY vs LOAD CURRENT  
100  
90  
VIN  
PWRGD  
80  
70  
60  
50  
40  
30  
20  
10  
0
TPS54260-Q1  
EN  
BOOT  
PH  
SS/TR  
RT/CLK  
COMP  
VIN=12V  
VOUT=3.3V  
fsw=300kHz  
VSENSE  
GND  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
IO - Output 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
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 © 20102011, Texas Instruments Incorporated  

TPS54260-Q1 替代型号

型号 品牌 替代类型 描述 数据表
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