TPS54240
- 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? - 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 and Sequencing
- UV and OV Power Good Output
- Adjustable UVLO Voltage and Hysteresis
- 0.8-V Internal Voltage Reference
- 10-Pin HVSSOP and 10-Pin 3-mm x 3-mm
VSON Packages with PowerPAD? - Supported by WEBENCH? Software Tool
The TPS54240 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 it can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing and 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 optimization of external component size. Frequency foldback and thermal shutdown protects the part during an overload condition.
The TPS54240 is available in 10-pin, thermally-enhanced HVSSOP and 10-pin 3-mm × 3-mm PowerPAD package.
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技術文檔
| 類型 | 標題 | 下載最新的英語版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 數據表 | TPS54240 3.5-V to 42-V Step-Down DC - DC Converter With Eco-Mode? 數據表 (Rev. B) | PDF | HTML | 2014年 11月 24日 | ||
| 證書 | TPS54240EVM-VSON EU Declaration of Conformity (DoC) | 2023年 12月 11日 | ||||
| 選擇指南 | 電源管理指南 2018 (Rev. K) | 2018年 7月 31日 | ||||
| 選擇指南 | 電源管理指南 2018 (Rev. R) | 2018年 6月 25日 | ||||
| EVM 用戶指南 | TPS54240EVM-VSON Regulator Evaluation Module | 2018年 2月 26日 | ||||
| 應用手冊 | Understanding Eco-mode(TM) Operation | 2016年 12月 5日 | ||||
| 應用手冊 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015年 3月 5日 | ||||
| 應用手冊 | Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A) | 2013年 11月 6日 | ||||
| 應用手冊 | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013年 9月 16日 | ||||
| 應用手冊 | Level Shifting Control for an Inverting Buck-boost | 2012年 10月 10日 | ||||
| EVM 用戶指南 | TPS54240EVM-605 2.5-A, SWIFT? Regulator Evaluation Module | 2010年 3月 9日 |
設計和開發
如需其他信息或資源,請點擊以下任一標題進入詳情頁面查看(如有)。
TPS54240EVM-605 — 2.5A SWIFT™ 轉換器評估模塊
TPS54240EVM-VSON — 降壓轉換器評估模塊
SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download
The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.
This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)
支持的產品和硬件
產品
AC/DC 和 DC/DC 轉換器(集成 FET)
| 封裝 | 引腳 | CAD 符號、封裝和 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
| VSON (DRC) | 10 | Ultra Librarian |
訂購和質量
- RoHS
- REACH
- 器件標識
- 引腳鍍層/焊球材料
- MSL 等級/回流焊峰值溫度
- MTBF/時基故障估算
- 材料成分
- 鑒定摘要
- 持續可靠性監測
- 制造廠地點
- 封裝廠地點
推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。