TPS54A24
- Standard 4-mm × 4-mm WQFN package
- –40°C to +150°C Operating junction temperature
- 200-kHz to 1.6-MHz Fixed switching frequency
- Peak-current-mode control
- Synchronizes to external clock
- 0.6-V Voltage reference ±0.85% over temperature
- 0.6-V to 12-V Output voltage range
- Safe start-up into prebiased output voltage
- Hiccup current limit
- Adjustable soft start and power sequencing
- Adjustable input undervoltage lockout
- Power-good output monitor for undervoltage and overvoltage
- 3-µA Shutdown current
- Output overvoltage protection
- Non-latch thermal shutdown protection
- Create a custom design using the TPS54A24 with the WEBENCH® Power Designer
The TPS54A24 is a full-featured 17-V, 10-A synchronous step-down DC/DC converter in a standard 4 mm × 4 mm WQFN package.
The device is optimized for small solution size through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through peak-current-mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor footprint.
The peak-current-mode control simplifies the loop compensation and provides fast transient response. Cycle-by-cycle peak current limiting on the high-side and low-side sourcing current limit protects the device in overload situations. Hiccup limits MOSFET power dissipation if a short circuit or over loading fault persists.
A power-good supervisor circuit monitors the regulator output. The PGOOD pin is an open-drain output and goes high impedance when the output voltage is in regulation. An internal deglitch time prevents the PGOOD pin from pulling low unless a fault has occurred.
A dedicated EN pin can be used to control the regulator on/off and adjust the input undervoltage lockout. The output voltage start-up ramp is controlled by the SS/TRK pin, which allows operation as either a standalone power supply or in tracking situations.
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 | TPS54A24 4.5-V to 17-V Input, 10-A Synchronous SWIFT™ Step-Down Converter datasheet (Rev. A) | PDF | HTML | 2020/3/6 | ||
| 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 | |||
| 應用說明 | Non-Isolated Point-of-Load Solutions for Tiger Lake in PC Applications (Rev. B) | PDF | HTML | 2021/4/29 | |||
| 選擇指南 | Buck Converter Quick Reference Guide (Rev. B) | 2021/4/8 | ||||
| 應用說明 | Non-Isolated Point-of-Load Solutions for Elkhart Lake in Industrial PC App. (Rev. A) | PDF | HTML | 2020/5/21 | |||
| 應用說明 | Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences | 2019/7/2 | ||||
| 應用說明 | Minimizing Output Ripple During Startup (Rev. A) | 2019/5/20 | ||||
| 應用說明 | DC/DC Point-of-load Power Solutions for Wired Networking Switch Systems | 2018/12/11 | ||||
| 應用說明 | Create an Inverting Power Supply Using a Synchronous Step-Down Regulator (Rev. B) | 2018/6/25 |
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)。
TPS54A24EVM-058 — 降壓轉換器評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (RTW) | 24 | 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。