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
类型 | 标题 | 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年 11月 24日 | ||
证书 | TPS54240EVM-VSON EU Declaration of Conformity (DoC) | 2023年 12月 11日 | ||||
选择指南 | 电源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
选择指南 | 电源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
EVM 用户指南 | TPS54240EVM-VSON Regulator Evaluation Module | 2018年 2月 26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 | Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A) | 2013年 11月 6日 | ||||
应用手册 | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013年 9月 16日 | ||||
应用手册 | Level Shifting Control for an Inverting Buck-boost | 2012年 10月 10日 | ||||
EVM 用户指南 | TPS54240EVM-605 2.5-A, SWIFT™ Regulator Evaluation Module | 2010年 3月 9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)。
TPS54240EVM-605 — 2.5A SWIFT™ 转换器评估模块
TPS54240EVM-VSON — 降压转换器评估模块
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 (...)
支持的产品和硬件
产品
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 |
VSON (DRC) | 10 | Ultra Librarian |
订购和质量
- 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
- 制造厂地点
- 封装厂地点