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TPS54160-Q1

更新时间： 2024-09-18 08:38:59
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德州仪器 - TI /
页数 文件大小 规格书
53页 1567K
描述
1.5-A 60-V STEP-DOWN SWIFT DC/DC CONVERTER WITH Eco-Mode CONTROL

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TPS54160-Q1 数据手册

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TPS54160-Q1  
www.ti.com  
SLVS922E –JULY 2009–REVISED MARCH 2011  
1.5-A 60-V STEP-DOWN SWIFT™ DC/DC CONVERTER  
WITH Eco-Mode™ CONTROL  
Check for Samples: TPS54160-Q1  
1
FEATURES  
•
•
•
•
Qualified for Automotive Applications  
•
Adjustable Undervoltage Lockout (UVLO)  
Voltage and Hysteresis  
3.5-V to 60-V Input Voltage Range  
•
•
0.8-V Internal Voltage Reference  
200-mΩ High-Side MOSFET  
Supported by SwitcherPro™ Software Tool  
(http://focus.ti.com/docs/toolsw/folders/print/s  
witcherpro.html)  
High Efficiency at Light Loads With  
Pulse-Skipping Eco-mode™ Control Scheme  
•
•
•
•
•
•
116-μA Operating Quiescent Current  
1.3-μA Shutdown Current  
•
For SWIFT™ Documentation, See the TI  
Website at http://www.ti.com/swift  
100-kHz to 2.5-MHz Switching Frequency  
Synchronizes to External Clock  
Adjustable Slow Start/Sequencing  
APPLICATIONS  
•
12-V, 24-V, and 48-V Industrial and Commercial  
Low Power Systems  
Undervoltage and Overvoltage Power Good  
Output  
•
Aftermarket Automotive Accessories: Video,  
GPS, Entertainment  
DESCRIPTION  
The TPS54160 device is a 60-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.  
Undervoltage lockout is set internally 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 93% to 107% of its nominal voltage.  
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency  
foldback and thermal shutdown protects the part during an overload condition.  
The TPS54160 is available in 10-pin thermally enhanced MSOP PowerPad (DGQ) or 10-pin SON (DRC)  
package.  
SIMPLIFIED SCHEMATIC  
EFFICIENCY  
vs  
LOAD CURRENT  
VIN  
PWRGD  
90  
TPS54160  
85  
80  
EN  
BOOT  
PH  
75  
70  
65  
60  
55  
50  
SS/TR  
RT/CLK  
COMP  
VI = 12 V,  
VO = 3.3 V,  
fsw = 1200 kHz  
VSENSE  
GND  
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.  
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 © 2009–2011, Texas Instruments Incorporated  
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