TPS65265
- Operating input voltage range 4.5 V to 17 V
- Feedback reference voltage 0.6 V ±1.33%
- Continuous output current 5 A/3 A/2 A
- Adjustable clock frequency from 250 kHz to 2.3 MHz
- External synchronization oscillator
- 120° out of phase for Buck1, Buck2, Buck3
- Dedicated enable pins for each buck
- Fixed SS time for each buck (2.4 ms)
- Automatic power-up, power-down sequence and adjustable interval time between bucks (6 combinations)
- Support Pulse Skipping Mode (PSM) and Forced Continuous Current Mode (FCCM)
- Output voltage power-good indicator and adjustable delay time
- Thermal overloading protection
- 32-pin QFN (RHB) 5-mm × 5-mm package
The TPS65265 incorporates triple synchronous buck converters with 4.5-V to 17-V wide input voltage range that encompassed most intermediate bus voltage operating off 5-, 9-, 12- or 15-V power bus or battery. The converter with constant frequency peak current mode is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The switching frequency of the converters can be adjustable from 250 kHz to 2.3 MHz with an external resistor or external clock. 120° out-of-phase operation between Buck1, Buck2, and Buck3 minimizes the input filter requirements.
The TPS65265 operates in pulse skipping mode (PSM) with driving MODE pin to high or leaving float and operates in force continuous current mode (FCC) with connecting MODE pin to GND. PSM mode provides high efficiency by reducing switching losses at light load and FCC mode reduces noise susceptibility and RF interference.
The TPS65265 is available in a 32-pin thermal enhanced QFN (RHB) 5-mm × 5-mm thin package.
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 | TPS65265 4.5-V to 17-V Input Voltage, 5-A/3-A/2-A Output Current Triple Synchronous Step-Down Converter datasheet (Rev. B) | PDF | HTML | 2023/5/22 | ||
| 應用說明 | Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) | PDF | HTML | 2019/4/1 | |||
| 應用說明 | TPS65250/1/2/3 LAYOUT GUIDE | 2013/1/15 |
設計與開發
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TPS65265EVM-705 — TPS65265 PMIC 5A、3A、2A 輸出電流評估模組
TPS65265EVM-705 評估模組可協助評估 TPS65265。TPS65265 PMIC 為三路 5A/3A/2A 輸出電流同步降壓式（降壓）轉換器，操作範圍為 4.5 至 17V。每個降壓的回饋電壓參考為 0.6V。每個降壓都是獨立的，並具有專屬的啟用和迴路補償。TPS65265 支援 PSM 模式和 FCC 模式。此裝置支援 2500kHZ 至 2.3MHZ 的可調整 FSW、可編程 P-GOOD 延遲時間，以及自動開機/關機功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | 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。