計算工具
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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技術文件
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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54240 3.5-V to 42-V Step-Down DC - DC Converter With Eco-Mode™ datasheet (Rev. B) | PDF | HTML | 2014年 11月 24日 |
| Certificate | TPS54240EVM-VSON EU Declaration of Conformity (DoC) | 2023年 12月 11日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| EVM User's guide | TPS54240EVM-VSON Regulator Evaluation Module | 2018年 2月 26日 | ||
| Application note | Understanding Eco-mode(TM) Operation | 2016年 12月 5日 | ||
| Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015年 3月 5日 | ||
| Application note | Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A) | 2013年 11月 6日 | ||
| Application note | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013年 9月 16日 | ||
| Application note | Level Shifting Control for an Inverting Buck-boost | 2012年 10月 10日 | ||
| EVM User's guide | TPS54240EVM-605 2.5-A, SWIFT™ Regulator Evaluation Module | 2010年 3月 9日 |
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)。
開發板
TPS54240EVM-605 — 2.5A SWIFT™ 轉換器評估模組
The TPS54240 dc/dc converter is designed to provide up to a 2.5-A output from an input voltage source of 3.5V to 40V. Rated input voltage and output current range for the evaluation module are given in Table 1 of the User Guide. This evaluation module is designed to demonstrate the small, (...)
使用指南: PDF
開發板
TPS54240EVM-VSON — 降壓轉換器評估模組
TPS54240EVM-VSON is a step-down converter evaluation module (EVM). The TPS54240 is a buck converter with Eco-mode control which can provide high efficiency at light loads. It has a wide switching-frequency range allows efficiency and external component size to be optimized.
使用指南: PDF
計算工具
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 (...)
支援產品和硬體
產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
| 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
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點