计算工具
TPS54040
- 3.5-V to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads with a Pulse
Skipping Eco-Mode™ - 116-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- MSOP10 Package With PowerPAD™
- Supported by SwitcherPro Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
The TPS54040 device is a 42-V, 0.5-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, when the enable pin is low.
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 93% 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 TPS54040 is available in 10-pin thermally enhanced HVSSOP PowerPAD package.
技术文档
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查看全部 8 | 类型 | 标题 | 下载最新的英语版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 数据表 | TPS54040 0.5-A, 42-V Step Down DC/DC Converter with Eco-Mode™ 数据表 (Rev. B) | PDF | HTML | 2016年 1月 15日 | ||
| 应用手册 | Understanding Eco-mode(TM) Operation | 2016年 12月 5日 | ||||
| 应用手册 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015年 3月 5日 | ||||
| 应用手册 | Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A | 2013年 4月 17日 | ||||
| 应用手册 | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012年 10月 26日 | ||||
| 应用手册 | Level Shifting Control for an Inverting Buck-boost | 2012年 10月 10日 | ||||
| 白皮书 | Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) | 2012年 3月 28日 | ||||
| EVM 用户指南 | TPS54040EVM-456 0.5-A, SWIFT™ Regulator Evaluation Module | 2009年 3月 20日 |
设计和开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
评估板
TPS54040EVM-456 — TPS54040 42V 输入、5V 输出、0.5A 评估模块
TPS54040EVM-456 评估模块旨在演示使用 TPS54040 稳压器进行设计时可实现的小印制电路板面积。TPS54040 dc/dc 转换器设计用于以 3.5V 至 42V 的输入电压提供 0.5A 的输出电流。表 1 列出了评估模块的额定输入电压和输出电流范围。开关频率被内部设置为 700kHz 的额定频率。TPS54040 封装内部采用了高端 MOSFET 以及栅极驱动器电路。MOSFET 的漏源电阻能使 TPS54040 实现高效率，并在高输出电流的情况下帮助保持低结温。补偿组件位于集成电路 (IC) 外部，而外部除法器能实现可调节的输出电压。此外，TPS54040 (...)
用户指南: PDF
计算工具
SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
支持的米6体育平台手机版_好二三四和硬件
米6体育平台手机版_好二三四
AC/DC 和 DC/DC 转换器（集成 FET）
计算工具
SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download
The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.
This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)
支持的米6体育平台手机版_好二三四和硬件
米6体育平台手机版_好二三四
AC/DC 和 DC/DC 转换器（集成 FET）
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
订购和质量
包含信息：
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 鉴定摘要
- 持续可靠性监测
包含信息：
- 制造厂地点
- 封装厂地点