TPS62250
- High Efficiency Step Down Converter
- Max Peak Current Limit of 1A, Ideal for USB Powered Applications
- VIN Range Optimized for USB from 2V to 6V
- 2.25 MHz Fixed Frequency Operation
- Power Save Mode at Light Load Currents
- Output Voltage Accuracy in PWM mode ±1.5%
- Typ. 15 µA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Soft Start
- Voltage Positioning at Light Loads
- Available in a Small 2×2×0,8mm SON package
- Allows <1mm Solution Height
- APPLICATIONS
- Portable USB Peripherals
- Wireless Modem Applications
- USB PCTV Applications
The TPS62250 device is a high efficient synchronous step down dc-dc converter optimized for USB powered applications. It provides up to 1A peak output current and limits the average input current to 700mA, making it ideal for applications connected to a USB host. With an wide input voltage range of 2V to 6V, the device supports applications powered by the USB host as well as general applications requiring large output capacitors.
The TPS62250 operates at 2.25MHz 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.
The TPS62250 is available in a very small 2×2 6 pin SON package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | Peak Current Limited Step Down Converter for USB Applications 数据表 | 2008-9-17 | |||
| 应用手册 | 降压转换器功率级的基本计算： | PDF | HTML | PDF | HTML | 2026-9-21 | ||
| 应用手册 | QFN 和 SON PCB 连接 (Rev. C) | PDF | HTML | 英语版 (Rev.C) | PDF | HTML | 2024-1-5 | |
| 模拟设计期刊 | Methods of output-voltage adjustment for DC/DC converters | 2019-6-14 | ||||
| 应用手册 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018-12-11 | ||||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 模拟设计期刊 | Understanding 100% mode in low-power DC/DC converters | 2018-6-22 | ||||
| 模拟设计期刊 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017-10-24 | ||||
| 应用手册 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017-6-15 | ||||
| 模拟设计期刊 | Testing tips for applying external power to supply outputs without an input voltage | 2016-10-24 | ||||
| 模拟设计期刊 | 实现降压型转换器出色 PCB 布局的五个步骤 | 英语版 | 2015-5-1 | |||
| 模拟设计期刊 | DC/DC 转换器中电阻式反馈分压器设计考虑因素 | 英语版 | 2012-6-1 | |||
| 应用手册 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012-1-13 | ||||
| 模拟设计期刊 | IQ：它是什么、不是什么以及如何使用 | 英语版 | 2011-8-17 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
SLVC780 — Design Tool for Output Voltage Adjustment Using a DAC
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (DRV) | 6 | Ultra Librarian |