TPS61045
- Input Voltage Range from 1.8 to 6 V
- Output Voltage of up to 28 V Possible
- Up to 85% Efficiency
- Digitally Adjustable Output Voltage Control
- Disconnects Output From Input During Shutdown
- Switching Frequency up to 1 MHz
- No Load Quiescent Current 40 µA Typical
- Thermal Shutdown Mode
- Shutdown Current 0.1 µA Typical
- Available in Small 3-mm × 3-mm VSON Package
The TPS61045 device is a high-frequency boost converter with digitally-programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power-up and power-down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 device allows the use of small external components, and together, with the small 8-pin VSON package, a minimum system solution size is achieved.
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 | TPS61045 Digitally Adjustable Boost Converter datasheet (Rev. C) | PDF | HTML | 2014/12/5 | ||
| 應用說明 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023/12/6 | |||
| 應用說明 | Using External Bias to Broaden Input Voltage Range of Boost Converters | PDF | HTML | 2021/11/8 | |||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017/11/29 | ||||
| 應用說明 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017/6/15 | ||||
| 應用說明 | Feedforward Capacitor Makes Boost Converter Fast and Stable | 2016/11/2 | ||||
| 類比設計期刊 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012/4/26 | ||||
| 類比設計期刊 | IQ: What it is, what it isn’t, and how to use it | 2011/6/17 | ||||
| 應用說明 | Minimizing Ringing at the Switch Node of a Boost Converter | 2006/9/15 | ||||
| 應用說明 | High Voltage Power Supply Using the TPS61040 | 2002/7/9 |
設計與開發
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TPS61045EVM-231 — TPS61045 評估模組
The TPS61045EVM-231 is an evaluation tool for the TPS61045 inductive boost converter in 3x3mm2 QFN that can supply voltages up to 28V from input voltages in the range of 1.8V to 6V. The EVM is configured to supply a highly efficient, digitally adjustable, 18-V output for LCD bias supplies. This EVM (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VSON (DRB) | 8 | 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。