現在提供此產品的更新版本
針腳對針腳的功能與所比較的裝置相同。
TLV62565
- 2.7-V to 5.5-V Input Voltage Range
- 1.5-MHz Typical Switching Frequency
- Output Current up to 1.5 A (Max)
- Adaptive On-Time Current Control
- Power Save Mode for Light Load Efficiency
- 50-µA Operating Quiescent Current
- Up to 95% Efficiency
- Over Current Protection
- 95% Maximum Duty Cycle
- Excellent AC and Transient Load Response
- Power Good Output, TLV62566
- Internal Soft Startup of 250 µs (Typ)
- Adjustable Output Voltage
- Thermal Shutdown Protection
- Portable Devices
- DSL Modems
- Hard Disk Drivers
- Set Top Box
- Tablet
All trademarks are the property of their respective owners.
The TLV62565/6 devices are synchronous step-down converters optimized for small solution size and high efficiency. The devices integrate switches capable of delivering an output current up to 1.5 A.
The devices are based on an adaptive on time with valley current mode control scheme. Typical operating frequency is 1.5 MHz at medium to heavy loads. The devices are optimized to achieve very low output voltage ripple even with small external components and feature an excellent load transient response.
During light load, the TLV62565/6 automatically enter into Power Save Mode at the lowest quiescent current (50 µA typ) to maintain high efficiency over the entire load current range. In shutdown, the current consumption is reduced to less than 1 µA.
The TLV62565/6 provide an adjustable output voltage via an external resistor divider. The output voltage start-up ramp is controlled by an internal soft start, typically 250 µs. Power sequencing is possible by configuring the Enable (TLV62565) and Power Good (TLV62566) pins. Other features like over current protection and over temperature protection are built-in. The TLV62565/6 devices are available in a SOT-23 5-pin 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 | TLV6256x 1.5-A High Efficiency Step-Down Converters in SOT-23 5-Pin Package datasheet (Rev. D) | PDF | HTML | 2016/10/5 | ||
| 應用說明 | Quick Reference Guide To TI Buck Switching DC/DC Application Notes (Rev. B) | PDF | HTML | 2022/5/23 | |||
| 類比設計期刊 | Methods of output-voltage adjustment for DC/DC converters | 2019/6/14 | ||||
| 類比設計期刊 | Understanding 100% mode in low-power DC/DC converters | 2018/6/22 | ||||
| 使用指南 | Discrete Power Solution for AM437x (Rev. A) | 2017/12/1 | ||||
| 類比設計期刊 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017/10/24 | ||||
| 類比設計期刊 | Testing tips for applying external power to supply outputs without an input voltage | 2016/10/24 | ||||
| 類比設計期刊 | Five steps to a great PCB layout for a step-down converter | 2015/1/29 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 5 | 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。