TPS54332
- 3.5-V to 28-V input voltage range
- Adjustable output voltage down to 0.8 V
- Integrated 80-mΩ high-side MOSFET supports up to 3.5-A continuous output current
- High-efficiency at light loads with a pulse-skipping Eco-mode
- Fixed 1-MHz switching frequency
- Typical 1-µA shutdown quiescent current
- Adjustable slow-start limits inrush currents
- Programmable UVLO threshold
- Overvoltage transient protection
- Cycle-by-cycle current limit, frequency foldback and thermal shutdown protection
- Available in thermally enhanced, 8-pin SOIC PowerPAD™ integrated circuit package
- Use TPS62933 for a 30 VIN converter with higher frequency, lower IQ, and improved EMI
- Create a custom design using the TPS54332 with the WEBENCH Power Designer
The TPS54332 is a 28-V, 3.5-A non-synchronous buck converter that integrates a low-R DS(on) high-side MOSFET. To increase efficiency at light loads, a pulse-skipping Eco-mode feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery-powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during start-up and transient conditions. A cycle-by-cycle current limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54332 is available in an 8-pin SOIC PowerPAD integrated circuit package.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPS54332 3.5-A, 28-V, 1-MHz, Step-Down DC/DC Converter With Eco-mode datasheet (Rev. D) | PDF | HTML | 2023/9/15 | ||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | 2017/7/19 | ||||
| 應用說明 | Understanding Eco-mode(TM) Operation | 2016/12/5 | ||||
| 應用說明 | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012/10/26 | ||||
| 應用說明 | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | 2010/9/15 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | Ultra Librarian |
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