TPS54240
- 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™ - 138-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start and Sequencing
- UV and OV Power Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- 10-Pin HVSSOP and 10-Pin 3-mm x 3-mm
VSON Packages with PowerPAD™ - Supported by WEBENCH® Software Tool
The TPS54240 device is a 42-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.
Undervoltage lockout is internally set at 2.5 V, but it 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 and 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 optimization of external component size. Frequency foldback and thermal shutdown protects the part during an overload condition.
The TPS54240 is available in 10-pin, thermally-enhanced HVSSOP and 10-pin 3-mm × 3-mm PowerPAD package.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS54240 3.5-V to 42-V Step-Down DC - DC Converter With Eco-Mode™ 数据表 (Rev. B) | PDF | HTML | 2014-11-24 | ||
| 证书 | TPS54240EVM-VSON EU Declaration of Conformity (DoC) | PDF | HTML | 2023-12-11 | |||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | Understanding Eco-mode(TM) Operation | 2016-12-5 | ||||
| 应用手册 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015-3-5 | ||||
| 应用手册 | Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A) | 2013-11-6 | ||||
| 应用手册 | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013-9-16 | ||||
| 应用手册 | Level Shifting Control for an Inverting Buck-boost | 2012-10-10 |
设计与开发
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）。
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此工作表用于计算使用降压开关稳压器和模拟现成的耦合电感器创建一个双路输出（即正负输出）电源所需的外部组件。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
订购和质量
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