現在提供此產品的更新版本
功能相似於所比較的產品。
TPS54318
- Two, 30-mΩ (typical) MOSFETs for High-Efficiency at 3-A loads
- Switching Frequency: 200 kHz to 2 MHz
- Voltage Reference Over Temperature: 0.8 V ± 1%
- Synchronizes to External Clock
- Adjustable Soft Start/Sequencing
- UV and OV Power-Good Output
- Low Operating and Shutdown Quiescent Current
- Safe Start-Up into Prebiased Output
- Cycle-by-Cycle Current Limit, Thermal and Frequency Foldback Protection
- Operating Junction Temperature Range: –40°C to 150°C
- Thermally Enhanced 3 mm × 3 mm 16-pin WQFN Package
- Create a Custom Design Using the TPS54318 With the WEBENCH® Power Designer
TheTPS54318 device is a full-featured, 6-V, 3-A, synchronous, step-down current-mode converter with two integrated MOSFETs.
The TPS54318 device enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the device footprint with a small, 3 mm x 3 mm, thermally enhanced, QFN package.
The TPS54318 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.
Efficiency is maximized through the integrated 30-mΩ MOSFETs and a 350-µA typical supply current. Using the EN pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.
Undervoltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the soft-start pin. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage. Frequency foldback and thermal shutdown protects the device during an overcurrent condition.
For more SWIFT™ documentation, see the TI website at www.ti.com/swift.
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 | TPS54318 2.95-V to 6-V Input, 3-A Output, 2-MHz, Synchronous Step-Down SWIFT™ Converter datasheet (Rev. C) | PDF | HTML | 2018/4/6 | ||
| 應用說明 | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024/3/25 | |||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 應用說明 | Calculating Efficiency (Rev. A) | 2020/3/6 | ||||
| 選擇指南 | SWIFT DC/DC Converters Selector Guide (Rev. G) | 2019/2/6 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Understanding Thermal Dissipation and Design of a Heatsink | 2011/5/4 | ||||
| 應用說明 | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | 2010/9/15 | ||||
| 使用指南 | TPS54318EVM-512 3-A, SWIFT Regulator Evaluation Module | 2009/9/23 |
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)。
TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator
TIDA-010131 — 適用於雷達和無線 5G 測試儀的多通道射頻收發器計時參考設計
TIDA-01021 — 適用於 DSO、雷達和 5G 無線測試儀的多通道 JESD204B 15 GHz 時鐘參考設計
TIDA-01023 — 適用於雷達和 5G 無線測試器的高通道數 JESD204B 時脈產生參考設計
TIDA-01024 — 適用於雷達和 5G 無線測試器的高通道數 JESD204B 菊輪鍊時鐘參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTE) | 16 | 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。