Datasheet > TPS54240_14

TPS54240_14

更新时间： 2024-11-10 02:58:35

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
44页	1465K
描述
3.5V to 42V STEP DOWN SWIFTâ¢ DC/DC CONVERTER WITH ECO-MODEâ¢

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

TPS54240_14 数据手册

TPS54240

www.ti.com

SLVSAA6 –APRIL 2010

3.5V to 42V STEP DOWN SWIFT™ DC/DC CONVERTER WITH ECO-MODE™

Check for Samples: TPS54240

FEATURES

•

0.8-V Internal Voltage Reference

•

3.5V to 42V Input Voltage Range

MSOP10 Package With PowerPAD™

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 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 and 24-V Industrial and Commercial Low

Power Systems

GSM, GPRS Modules in Fleet Management,

E-Meters, and Security Systems

•

DESCRIPTION

The TPS54240 device is a 42V, 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 TPS54240 is available in 10 pin thermally enhanced MSOP Power Pad™ package.

SIMPLIFIED SCHEMATIC

EFFICIENCY vs LOAD CURRENT

100

VIN

PWRGD

TPS54240

BOOT

SS/TR

RT/CLK

COMP

VIN=12V

VOUT=3.3V

fsw=300kHz

VSENSE

GND

0.5

1.0

1.5

2.0

2.5

3.0

I_O- Output Current - A

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.

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.

12 3 4 5 6 7...44

中文翻译

下载PDF

与TPS54240_14相关器件

型号	品牌	获取价格	描述	数据表
TPS54240DGQ	TI	获取价格	3.5V to 42V STEP DOWN SWIFT™ DC/DC CONVERTER
TPS54240DGQR	TI	获取价格	3.5V to 42V STEP DOWN SWIFT™ DC/DC CONVERTER
TPS54240DRCR	TI	获取价格	具有 Eco-Mode 的 3.5V 至 42V 输入、2.5A 降压转换器 \| DRC
TPS54240DRCT	TI	获取价格	具有 Eco-Mode 的 3.5V 至 42V 输入、2.5A 降压转换器 \| DRC
TPS54240-Q1	TI	获取价格	3.5V to 42V STEP DOWN SWIFTâ¢ DC/DC CONVERTE
TPS54240QDGQRQ1	TI	获取价格	3.5V to 42V STEP DOWN SWIFTâ¢ DC/DC CONVERTE
TPS54240QDRCRQ1	TI	获取价格	具有 Eco-Mode™ 的汽车类 3.5V 至 42V、2.5A 降压转换器 \| DRC
TPS54260	TI	获取价格	3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER
TPS54260_1	TI	获取价格	3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER
TPS54260_2	TI	获取价格	3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER

与TPS54240_14相关文章

英伟达新AI芯片Rubin或提前半年亮相
2024-11-05

22
苹果iPhone 17将全系采用三星/LG显示LTPO OLED面板
2024-11-05

21
三星深化印度制造布局，供应链本地化进程加速
2024-10-29

47
芯擎科技“星辰一号”自动驾驶芯片点亮成功，2025年量产在即
2024-10-29

39

产品中心

服务支持

精选活动

关于我们

帮助中心

TPS54240_14

TPS54240_14 数据手册

与TPS54240_14相关器件

与TPS54240_14相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

TPS54240_14

TPS54240_14 数据手册

与TPS54240_14相关器件

与TPS54240_14相关文章

您还可以找

您在本页遇到什么问题？