TPS54618
- Two 12-mΩ (typical) MOSFETs for high efficiency at 6-A loads
- 300-kHz to 2-MHz switching frequency
- 0.8-V ±1% Voltage reference over temperature (–40°C to +150°C)
- Synchronizes to external clock
- Adjustable slow start and sequencing
- UV and OV power-good output
- –40°C to 150°C Operating Junction Temperature Range
- Thermally enhanced 3-mm × 3-mm, 16-pin WQFN package
- Pin-Compatible to TPS54418
- Create a custom design using the TPS54618 with the WEBENCH® Power Designer
The TPS54618 device is a full-featured 6-V, 6-A, synchronous step-down current-mode converter with two integrated MOSFETs.
The TPS54618 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 IC footprint with a small, 3-mm × 3-mm, thermally-enhanced WQFN package.
The TPS54618 provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over temperature.
Efficiency is maximized through the integrated
12-mΩ MOSFETs and 515-µA typical supply current. Using the enable pin, shutdown supply
current is reduced to 5.5-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 start-up ramp is controlled by the slow-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 protect 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 | TPS54618 2.95-V to 6-V, 6-A, Synchronous Step-Down SWIFT Converter datasheet (Rev. F) | PDF | HTML | 2019/5/24 | ||
| 應用說明 | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024/3/25 | |||
| 應用說明 | Step-Dwn (Buck) Convrtr Pwer Solutions for Programmable Logic Controller Systems (Rev. A) | PDF | HTML | 2021/7/26 | |||
| 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 | ||||
| 應用說明 | Solve Point-of-Load Power Design Challenges: Single Board Computer Applications | 2018/8/24 | ||||
| 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 |
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)。
TPS54618EVM-606 — 適用於 TPS54618 同步降壓 SWIFT™ DC/DC 轉換器的評估模組
TPS54620DESIGN-CALC — TPS54620 and TPS54XXX Current-Mode Step-Down Converter Design Calculator
| 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。