TPS65263
- Operating input voltage range 4.5- to 18-V continuous output current 3 A/2 A/2 A
- I 2C controlled 7-bits VID programmable output voltage from 0.68 to 1.95 V with 10-mV voltage step for each buck
- I 2C controlled VID voltage transition slew rate
- I 2C read back power-good status, overcurrent warning for each buck
- I 2C read back die temperature warning
- I 2C compatible interface with standard mode (100 kHz) and fast mode (400 kHz)
- Feedback reference voltage 0.6 V ±1%
- Fixed 600-kHz frequency
- Dedicated enable and soft start pins for each buck
- Thermal overloading protection
The TPS65263 incorporates triple synchronous buck converters with 4.5- to 18-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 device operates in 600 kHz with 180° out-of-phase between buck1 and buck2, buck3 (buck2 and buck3 run in phase).
The initial startup voltage of each buck can be set with external feedback resistors. The output voltage of each buck can be dynamically scaled from 0.68 to 1.95 V in 10-mV step with I 2C controlled 7 bits VID. The VID voltage transition slew rate is programmable with 3-bits control through I 2C bus to optimize overshoot/undershoot during VID voltage transition.
Each buck in TPS65263 can be I 2C controlled for enabling/disabling output voltage, setting the pulse skipping mode (PSM) or force continuous current mode (FCC) at light load condition and reading the power good status, overcurrent warning and die temperature warning.
The TPS65263 features overvoltage, overcurrent, short-circuit, and overtemperature protection.
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 | TPS65263, 4.5-V to 18-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter with I2C Controlled Dynamic Voltage Scaling datasheet (Rev. C) | PDF | HTML | 2023/5/17 | ||
| 應用說明 | Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) | PDF | HTML | 2019/4/1 | |||
| 技術文章 | There are more ways than you think to reduce conducted EMI | PDF | HTML | 2018/4/17 | |||
| 應用說明 | TPS65250/1/2/3 LAYOUT GUIDE | 2013/1/15 |
設計與開發
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TPS65263EVM-645 — TPS65263EVM 評估模組
TPS65263EVM-645 評估模組 (EVM) 是一個已完成組裝且經過測試的電路，用於評估 TPS65263。此 EVM 包含輸入和輸出連接器以及控制跨接器，可輕鬆評估裝置功能。
SLVC578 — TPS65263EVM GUI
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | Ultra Librarian |