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。
TPS54240-Q1
- Qualified for Automotive Applications
- AEC Q100 Qualified With the Following Results:
- Device Temperature Grade 1:
–40°C to 125°C Ambient Operating
Temperature Range - Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C6
- Device Temperature Grade 1:
- 3.5-V to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads With a
Pulse-Skipping Eco-mode Control Scheme - 138-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power-Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- MSOP10 PowerPAD Package
- Supported by SwitcherPro Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html) - For SWIFT Documentation, See the TI Web site at http://www.ti.com/swift
The TPS54240-Q1 device is a 42-V, 2.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated-output supply current to 138 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA when the enable pin is low.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage start-up ramp is controlled by the slow-start pin that can also be configured for sequencing/tracking. An open-drain power-good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching-frequency range allows efficiency and external component size to be optimized. Frequency foldback and thermal shutdown protects the part during an overload condition.
The TPS54240-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD package.
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 | 3.5 V to 42 V STEP DOWN SWIFT DC/DC CONVERTER WITH ECO-MODE datasheet (Rev. B) | 2013/9/5 | |||
| 應用說明 | Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) | 2019/5/23 | ||||
| 應用說明 | Understanding Eco-mode(TM) Operation | 2016/12/5 | ||||
| 應用說明 | Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter | 2015/12/8 | ||||
| 應用說明 | TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) | 2015/11/3 | ||||
| 應用說明 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015/3/5 |
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)。
TPS54240EVM-605 — 2.5A SWIFT™ 轉換器評估模組
TPS54-57XX0-CALC — TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool
This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations
This worksheet includes two sections:
- Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)
TIDA-00346 — 適用於入門級核心應用處理器架構 ADAS 系統的成本最佳化電源供應器解決方案
TIDA-00346 設計可為汽車先進駕駛輔助系統 (ADAS) 應用中的典型入門級應用處理器提供所需的電源軌。 此設計使用數個獨立 DC/DC 電壓穩壓器，以及負載開關與線性穩壓器 (LDO)，為系統單晶片 (SoC) 的處理核心與其他功能提供固定電源電壓。也會實作適用於 DDR 記憶體電源和終端與 CAN 收發器的額外軌。兩個 LM3880 簡單的電源序列器可提供開機和關機排序。 此設計針對汽車應用進行最佳化，並可在 4V 至 18V（瞬態高達 40V）的輸入電壓下運作。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
| VSON (DRC) | 10 | 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。