TPS61236P
- Up to 97% Efficiency Synchronous Boost
- Up to 3.5-A IOUT for 3.3-V to 5-V Conversion
- 10-A 14-mΩ/14-mΩ Internal Power Switches
- Programmable Constant Output Current
- Output Current Monitor
- 10-µA IQ under Light Load Condition
- Boost Status Indication
- True disconnection during shutdown
- Fixed 5.1-V Output Voltage (TPS61235P) or
Adjustable Output Voltage from 2.9-V to-5.5 V
(TPS61236P) - 1-MHz Switching Frequency
- Softstart, Current Limit, Over Voltage and Over
Thermal Protections - 2.5 mm × 2.5 mm VQFN Package
The TPS6123x is a high current, high efficiency synchronous boost converter with constant output current feature for single cell Li-Ion and Li-polymer battery powered products, in a wide range of power bank, tablet, and other portable devices. The IC integrates 14-mΩ/14-mΩ power switches and is capable of delivering up to a 3.5-A output current for 3.3-V to 5-V conversion with up to 97% high efficiency. The device supports a programmable constant output current to control power delivery, so to save power path components and lower total system thermal dissipation effectively.
The device only consumes a 10-µA quiescent current under a light load condition, and can report load status to the system, which make it very suitable for Always-On applications. With the TPS6123x, a simple and flexible system design can be achieved, eliminating external power path components, saving PCB space, and reducing BOM cost.
In shutdown, the output is completely disconnected from the input, and current consumption is reduced to less than 1 µA. Other features like soft start control, reverse current blocking, over voltage protection, and thermal shutdown protection are built-in for system safety.
The devices are available in a 2.5-mm × 2.5-mm VQFN 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 | TPS6123x 8-A Valley Current Synchronous Boost Converters with Constant Current Output Feature datasheet (Rev. A) | PDF | HTML | 2016/4/18 | ||
| 應用說明 | Basic Calculation of a Boost Converter's Power Stage (Rev. D) | PDF | HTML | 2022/10/28 | |||
| 應用說明 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||||
| 應用說明 | Automated Frequency Response Analyzer | 2013/10/9 | ||||
| 類比設計期刊 | Design considerations for a resistive feedback divider in a DC/DC converter | 2012/4/26 | ||||
| 應用說明 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012/1/13 | ||||
| 應用說明 | Choosing an Appropriate Pull-up/Pull-down Resistor for Open Drain Outputs | 2011/9/19 | ||||
| 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 |
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)。
TPS61236EVM-676 — TPS61236 大電流升壓轉換器評估模組
此 EVM 可用來評估同步升壓轉換器 TPS61236；此轉換器在 5V VOUT 時具有 3A 輸出電流、< 3µA 超低電流以及可編程的輸出電流限制。此 EVM 也可用來評估 5.1V 固定版本的 TPS61235。在此情況下，回饋電阻器已移除，而且裝置的 FB 接腳會直接連接至 VOUT 接腳。
Unencrypted TPS61236P PSpice Transient Model Package (Rev. B)
PMP9776 — 實現輸出電流感測和限制，以及在行動電源中實現插入偵測的參考設計
行動電源是一種可攜式裝置，可以使用內建電池中儲存的能量來提供 USB 電源。此參考設計展示了以 TPS61236 為基礎的電路，適用於行動電源的 USB 輸出埠。此參考設計具備 5V 和 2.4A 輸出功能、自動偵測可攜式裝置外掛程式、輸出電流感測和限制、短路保護、溫度保護和電池電壓指示。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN-HR (RWL) | 9 | 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。