TPS84259
- Complete Integrated Power Solution Allows
Small Footprint, Low-Profile Design - Wide Input-Voltage Range from 4.5 V to 40 V
- Output Adjustable from –3 V to –17 V
- Supplies up to 2-A of Output Current
- 45-V Surge Capability
- Synchronizes to an External Clock
- Adjustable Slow Start
- Programmable Undervoltage Lockout (UVLO)
- Output Overcurrent Protection
- Overtemperature Protection
- Operating Temperature Range: –40°C to +85°C
- Enhanced Thermal Performance: 14°C/W
- Meets EN55022 Class B Emissions
- For Design Help visit http://www.ti.com/TPS84259
The TPS84259 is an easy-to-use negative output voltage power module that combines a 15-W DC/DC converter with an inductor, and passives into a low-profile QFN package. This total power solution allows as few as five external components and eliminates the loop compensation and magnetics part selection process.
The 9 × 11 × 2.8 mm QFN package is easy to solder onto a printed circuit board. Its compact design also contains fewer components and possesses excellent power dissipation capability. The TPS84259 offers the flexibility and the feature-set of a discrete design and is ideal for powering a wide range of ICs and analog circuits requiring a negative output voltage. Advanced packaging technology affords a robust and reliable power solution, compatible with standard QFN mounting and testing techniques.
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 | TPS84259 4.5-V to 40-V Input, 15-W, Negative Output, Integrated Power Solution datasheet (Rev. D) | 2018/4/11 | |||
| 應用說明 | Soldering Requirements for BQFN Packages (Rev. C) | 2020/3/5 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | AN-1889 How to Measure the Loop Transfer Function of Power Supplies (Rev. A) | 2013/4/23 | ||||
| 應用說明 | Reducing Output Ripple and Noise with the TPS84259 | 2012/11/6 | ||||
| 更多文件說明 | TPS84k Integrated Power Modules Info Card (Rev. A) | 2012/8/28 | ||||
| 更多文件說明 | SEM1600 Topic 4: Constructing Your Power Supply – Layout Considerations | 2005/7/12 | ||||
| 應用說明 | AN-643 EMI/RFI Board Design (Rev. B) | 2004/5/3 |
設計與開發
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SLVC443 — TPS84259 Calculator ver 1.0.2
PMP8372 — 具有低雜訊 LDO 分裂軌 (±5V) 輸出電壓的 40V 雙路 1A 電源模組參考設計
The PMP8372 design is optimized for small size and uses the TPS84250 step-down power module on the top- side with the TPS84259 negative output power module on the bottom-side to implement both positive and negative output voltages from a 12V/24V source. The output voltages can be adjusted from (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| B1QFN (RKG) | 41 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。