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V62/16624-01XE PDF预览

V62/16624-01XE

更新时间: 2024-11-19 11:06:51
品牌 Logo 应用领域
德州仪器 - TI 开关控制器开关式稳压器开关式控制器电源电路转换器开关式稳压器或控制器
页数 文件大小 规格书
47页 1694K
描述
具有 Eco-mode™ 的 3.5V 至 60V 输入、2.5A 降压转换器 | DGQ | 10 | -55 to 125

V62/16624-01XE 数据手册

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TPS54260  
www.ti.com  
SLVSA86 MARCH 2010  
3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE™  
Check for Samples: TPS54260  
1
FEATURES  
0.8-V Internal Voltage Reference  
2
3.5V to 60V Input Voltage Range  
MSOP10 Package With PowerPAD™  
200-mHigh-Side MOSFET  
Supported by SwitcherPro™ Software Tool  
(http://focus.ti.com/docs/toolsw/folders/print/s  
witcherpro.html)  
High Efficiency at Light Loads with a Pulse  
Skipping Eco-Mode™  
For SWIFT™ Documentation, See the TI  
Website at http://www.ti.com/swift  
138mA Operating Quiescent Current  
1.3mA Shutdown Current  
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  
APPLICATIONS  
12-V, 24-V and 48-V Industrial and Commercial  
Low Power Systems  
GSM, GPRS Modules in Fleet Management,  
E-Meters, and Security Systems  
DESCRIPTION  
The TPS54260 device is a 60V, 2.5A, 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 138mA. Using the enable pin, shutdown supply current is  
reduced to 1.3mA, 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 is available in 10 pin thermally enhanced MSOP Power Pad™ package.  
SIMPLIFIED SCHEMATIC  
EFFICIENCY vs LOAD CURRENT  
100  
90  
VIN  
PWRGD  
80  
70  
60  
50  
40  
30  
20  
10  
0
TPS54260  
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.  
2
Eco-Mode, PowerPAD, SwitcherPro, SWIFT 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 © 2010, Texas Instruments Incorporated  

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