現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
TPS549B22
- Input voltage (PVIN): 1.5V to 18V
- Input bias voltage (VDD) range: 4.5V to 22V
- Output voltage range: 0.6V to 5.5V
- Integrated, 4.1mΩ and 1.9mΩ power MOSFETs with 25A continuous output current
- Voltage reference 0.6V to 1.2V in 50mV steps using VSEL pin
- ±0.5%, 0.9VREF tolerance range: –40°C to +125°C junction temperature
- True differential remote sense amplifier
- D-CAP3™ control mode
- Adaptive on-time control with 8 PMBus frequencies: 315kHz, 425kHz, 550kHz, 650kHz, 825kHz, 900kHz, 1.025MHz, 1.125MHz
- Temperature compensated and programmable current limit with RILIM and OC clamp
- Choice of hiccup or latch-off OVP or UVP
- VDD UVLO External Adjustment by Precision EN
- Prebias start-up support
- Eco-mode and FCCM selectable
- Full suite of fault protection and PGOOD
- Standard VOUT_COMMAND and VOUT_MARGIN (HIGH and LOW)
- Pin-strapping and on-the-fly programming
- Fault reporting and warning
- NVM backup for selected commands
- 1MHz PMBus with PEC and SMB_ALRT#
- Create a custom design using the TPS549B22 with the WEBENCH Power Designer
The TPS549B22 device is a compact single buck converter with adaptive on-time, D-CAP3 control mode. The device is designed for high accuracy, high efficiency, fast transient response, ease-of-use, low external component count and space-conscious power systems.
This device features full differential sense and TI integrated FETs with a high-side on-resistance of 4.1mΩ and a low-side on-resistance of 1.9mΩ. The device also features an accurate 0.5%, 0.9V reference with an ambient temperature range between –40°C and +125°C. Competitive features include: very low external component count, accurate load regulation and line regulation, auto-skip or FCCM mode operation, and internal soft-start control.
The TPS549B22 device is available in 7mm × 5mm, 40-pin, LQFN-CLIP (RVF) package (RoHs exempt).
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 | TPS549B22 1.5V to 18V VIN , 4.5V to 22V VDD , 25A SWIFT Step-Down Converter With Full Differential Sense and PMBus® datasheet (Rev. A) | PDF | HTML | 2024/2/27 | ||
| 應用說明 | Measuring the Bode Plot of D-CAP™, D-CAP2™, and D-CAP3™ DC/DC Converters (Rev. A) | PDF | HTML | 2023/4/21 | |||
| 應用說明 | Point-of-Load Solutions for Network Interface Cards (NIC) | PDF | HTML | 2021/9/8 | |||
| 應用說明 | DC/DC Converter Solutions for Hardware Accelerators in Data Center Applications (Rev. A) | PDF | HTML | 2021/5/4 | |||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 應用說明 | Point-of-Load Solutions for Data Center App Implementing VR13.HC Vccin Spec (Rev. A) | PDF | HTML | 2020/1/8 | |||
| 技術文章 | Powering FPGAs - What to consider with Xilinx UltraScale+ FPGAs | PDF | HTML | 2018/1/29 | |||
| 應用說明 | Calculating Output Capacitance to Meet Transient and Ripple Requirements | 2017/5/2 |
設計與開發
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TPS549B22EVM-847 — TPS549B22 DCAP3 高效能 25A 單路同步降壓轉換器評估模組
TPS549B22EVM-847 的設計旨在幫助使用者輕鬆評估及測試 TPS549B22 降壓轉換器的運作及功能。EVM 將 1.5V 至 18V 輸入電壓轉換為穩定的 1.0V 輸出電壓，可在 5mm x 7mm QFN 封裝中提供高達 25A 的電流。此電路板具有可方便探測關鍵波形的測試點，並可與 Fusion Power Designer 介接，對 PMBus 介面進行評估。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| LQFN-CLIP (RVF) | 40 | 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。