TPS5432
- Two 70mΩ (typical) MOSFETs for 3A Continuous Output Current
- Current Mode Control With External Compensation
- 700kHz Switching Frequency
- 360µA no Load Quiescent Operating Current (no switching)
- 0.808V Internal Voltage Reference
- ±2.0% Reference Accuracy at 25°C
- ±3.0% Reference Accuracy Over Temperature Range –40°C~125°C
- Stable Operation With Ceramic Output Capacitor
- Adjustable Slow Start
- Cycle by Cycle Current Limit, and Frequency Fold Back Protection
- Thermally Enhanced 8-Pin SOIC (DDA) Package
The TPS5432 is a 6V, 3A, low Iq, current mode, synchronous monolithic buck converter with integrated MOSFETs. The TPS5432 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by 700kHz switching frequency. SOIC-8 package with exposed thermal pad provides both thermally enhanced solution and easy to use.
The TPS5432 provides accurate regulation for a variety of loads with an accurate 3.0% voltage reference over temperature.
Efficiency is maximized through the integrated 70mΩ MOSFETs and 360μA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
The output voltage startup ramp is controlled by the slow start pin. A ceramic capacitor at this pin can easily adjust the slow start time.
Frequency fold back and thermal shutdown protects the device during an over-current condition.
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 | TPS5432 2.95V to 6V Input, 3A Output, 700kHz Synchronous Step Down Converter datasheet (Rev. A) | 2012/4/12 | |||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 應用說明 | Optimizing Load Releasing Characteristics in TV Application | PDF | HTML | 2021/4/7 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS5432EVM-116 — 適用於 TPS5432 3A 同步降壓轉換器的評估模組
TIDA-00079 — 1 級 PoE - 高效率 IP 攝影機電源模組參考設計
此 IP 攝影機電源模組是一款高效率電源解決方案，可在 1 級 PoE 功率位準下實現高性能 1080p 運作。這款創新的電源模組用於低功率 DM385-AR331 IP 攝影機，仰賴於 TPS5432 等高效率交換器，這些交換器也非常具有成本效益。最終，TI 所提供的解決方案不僅實現了高性能，同時也將系統功耗降低至業界領先的水準。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HSOIC (DDA) | 8 | 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。