TPS54341
- High Efficiency at Light Loads with Pulse Skipping Eco-mode™
- 87-mΩ High-Side MOSFET
- 152-µA Operating Quiescent Current and 2-µA Shutdown Current
- 100-kHz to 2.5-MHz Adjustable Switching Frequency
- Synchronizes to External Clock
- Low Dropout at Light Loads with Integrated BOOT Recharge FET
- Adjustable UVLO Voltage and Hysteresis
- UV and OV Power-Good Output
- Adjustable Soft-Start and Sequencing
- 0.8-V 1% Internal Voltage Reference
- 10-Pin WSON with Thermal Pad Package
- –40°C to 150°C TJ Operating Range
- Supported by WEBENCH® Software Tool
The TPS54341 device is a 42-V, 3.5-A step-down regulator with an integrated high-side MOSFET. The device survives load-dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor divider at the enable pin. The output voltage startup ramp is controlled by the soft start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.
A wide adjustable switching-frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54341 device is available in a 10-pin 4-mm × 4-mm WSON package.
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 | TPS54341 4.5-V to 42-V Input, 3.5-A Step-Down DC-DC Converter With Soft-Start And Eco-Mode™ 数据表 (Rev. A) | PDF | HTML | 2016-10-31 | ||
| 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 | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012-10-26 | ||||
| 应用手册 | Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) | 2012-10-26 |
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）。
SLVC452 — TPS54360 and TPS54361 Family Design Excel Tool
TIDEP-01008 — Jacinto™ ADAS 处理器上的多传感器平台参考设计
针对 D3 Engineering 高级驾驶辅助系统 (ADAS) 的多传感器平台参考设计为合格的开发人员提供功能齐全的评估平台，以便测试和开发主要面向汽车行业的 ADAS 应用。 D3 还提供模块上系统 (SOM) 解决方案，其中包含可与此参考设计配合使用的 ADAS 嵌入式处理器（例如 TDA3x）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (DPR) | 10 | Ultra Librarian |
订购和质量
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