計(jì)算工具
數(shù)據(jù)表
TPS54040
- 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? - 116-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 Package With PowerPAD?
- Supported by SwitcherPro Software Tool
(http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
The TPS54040 device is a 42-V, 0.5-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 116 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA, when the enable pin is low.
Under voltage lockout is internally set at 2.5 V, but 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/tracking. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
The TPS54040 is available in 10-pin thermally enhanced HVSSOP PowerPAD package.
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查看全部 8 | 類型 | 標(biāo)題 | 下載最新的英語版本 | 日期 | |||
|---|---|---|---|---|---|---|
| * | 數(shù)據(jù)表 | TPS54040 0.5-A, 42-V Step Down DC/DC Converter with Eco-Mode? 數(shù)據(jù)表 (Rev. B) | PDF | HTML | 2016年 1月 15日 | ||
| 應(yīng)用手冊 | Understanding Eco-mode(TM) Operation | 2016年 12月 5日 | ||||
| 應(yīng)用手冊 | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015年 3月 5日 | ||||
| 應(yīng)用手冊 | Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A | 2013年 4月 17日 | ||||
| 應(yīng)用手冊 | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012年 10月 26日 | ||||
| 應(yīng)用手冊 | Level Shifting Control for an Inverting Buck-boost | 2012年 10月 10日 | ||||
| 白皮書 | Power Management Solutions for Ultra-Low-Power 16-Bit MSP430 MCUs (Rev. D) | 2012年 3月 28日 | ||||
| EVM 用戶指南 | TPS54040EVM-456 0.5-A, SWIFT? Regulator Evaluation Module | 2009年 3月 20日 |
設(shè)計(jì)和開發(fā)
如需其他信息或資源，請點(diǎn)擊以下任一標(biāo)題進(jìn)入詳情頁面查看（如有）。
評(píng)估板
TPS54040EVM-456 — TPS54040 42V 輸入、5V 輸出、0.5A 評(píng)估模塊
TPS54040EVM-456 評(píng)估模塊旨在演示使用 TPS54040 穩(wěn)壓器進(jìn)行設(shè)計(jì)時(shí)可實(shí)現(xiàn)的小印制電路板面積。TPS54040 dc/dc 轉(zhuǎn)換器設(shè)計(jì)用于以 3.5V 至 42V 的輸入電壓提供 0.5A 的輸出電流。表 1 列出了評(píng)估模塊的額定輸入電壓和輸出電流范圍。開關(guān)頻率被內(nèi)部設(shè)置為 700kHz 的額定頻率。TPS54040 封裝內(nèi)部采用了高端 MOSFET 以及柵極驅(qū)動(dòng)器電路。MOSFET 的漏源電阻能使 TPS54040 實(shí)現(xiàn)高效率，并在高輸出電流的情況下幫助保持低結(jié)溫。補(bǔ)償組件位于集成電路 (IC) 外部，而外部除法器能實(shí)現(xiàn)可調(diào)節(jié)的輸出電壓。此外，TPS54040 (...)
用戶指南: PDF
計(jì)算工具
SWIFTINV-CALC — SWIFT? Converter Inverting Buck/Boost Calculator
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
支持的產(chǎn)品和硬件
產(chǎn)品
AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）
計(jì)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 (...)
支持的產(chǎn)品和硬件
產(chǎn)品
AC/DC 和 DC/DC 轉(zhuǎn)換器（集成 FET）
| 封裝 | 引腳 | CAD 符號(hào)、封裝和 3D 模型 |
|---|---|---|
| HVSSOP (DGQ) | 10 | Ultra Librarian |
訂購和質(zhì)量
包含信息：
- RoHS
- REACH
- 器件標(biāo)識(shí)
- 引腳鍍層/焊球材料
- MSL 等級(jí)/回流焊峰值溫度
- MTBF/時(shí)基故障估算
- 材料成分
- 鑒定摘要
- 持續(xù)可靠性監(jiān)測
包含信息：
- 制造廠地點(diǎn)
- 封裝廠地點(diǎn)
推薦產(chǎn)品可能包含與 TI 此產(chǎn)品相關(guān)的參數(shù)、評(píng)估模塊或參考設(shè)計(jì)。