TPS62261-Q1
- Qualified for Automotive Applications
- High-Efficiency Step-Down Converter
- Output Current up to 600 mA
- Wide VIN Range from 2-V to 6-V for Li-Ion Batteries with
Extended Voltage Range - 2.25-MHz Fixed Frequency Operation
- Power Save Mode at Light Load Currents
- Output Voltage Accuracy in PWM Mode ±1.5%
- 15-µA (Typ) Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Soft Start
- Voltage Positioning at Light Loads
- Available in a Small 2×2×0,8-mm SON Package
- Allows <1-mm Solution Height
- APPLICATIONS
- PDAs, Pocket PCs
- Low Power DSP Supply
- Portable Media Players
- POL applications
The TPS6226x devices are high-efficiency synchronous step-down dc-dc converters optimized for battery powered applications. It provides up to 600-mA output current from a single Li-Ion cell and is ideal to power mobile phones and other portable applications.
With an wide input voltage range of 2 V to 6 V, the device supports applications powered by Li-Ion batteries with extended voltage range, two and three cell alkaline batteries, 3.3-V and 5-V input voltage rails.
The TPS6226x operates at 2.25-MHz fixed switching frequency and enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.
The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. TPS6226x allows the use of small inductors and capacitors to achieve a small solution size.
The TPS6226x is available in a very small 2×2mm 6-pin SON package.
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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 | TPS6226x-Q1 2.25-MHz 600-mA Step-Down Converter datasheet (Rev. C) | 2012/7/23 | |||
| 應用說明 | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 2023/12/6 | |||
| 類比設計期刊 | Understanding 100% mode in low-power DC/DC converters | 2018/6/22 | ||||
| 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 | ||||
| 應用說明 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015/8/17 | |||
| 類比設計期刊 | Five steps to a great PCB layout for a step-down converter | 2015/1/29 | ||||
| 應用說明 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012/1/13 | ||||
| 類比設計期刊 | IQ: What it is, what it isn’t, and how to use it | 2011/6/17 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WSON (DRV) | 6 | Ultra Librarian |
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