TPS62272
- High Efficiency Step Down Converter
- Output Current up to 400 mA
- VIN Range From 2V to 6V for Li-Ion Batteries With Extended Voltage Range
- 2.25 MHz Fixed Frequency Operation
- Pin-Selectable Fixed Output Voltage
- Power Save Mode for Highest Efficiency
- Automatic transition between PFM and PWM Mode
- Voltage Positioning in PFM Mode
- Typical 15-µA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Available in 2×2×0,8 mm SON Package
- Allows <1 mm Solution Height
- APPLICATIONS
- Low Power Processor Supply
- Cell Phones, Smart-phones
- Navigation Systems
- Low Power DSP Supply
- Portable Media Players
- Digital Cameras
The TPS62270 device is a high efficiency synchronous step down DC-DC converter optimized for battery powered portable applications. It provides up to 400 mA output current from a single Li-Ion cell.
With an input voltage range of 2 V to 6 V the device supports Li-Ion batteries with extended voltage range, and is ideal to power portable applications like mobile phones and other portable equipment.
The TPS62270 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.
With the VSEL pin, two different fixed output voltages can be selected. This function features a dynamic voltage scaling for low power processor cores.
In the shutdown mode, the current consumption is reduced to less than 1µA. TPS62270 allows the use of small inductors and capacitors to achieve a small solution size.
The TPS62270 is available in a 2 mm × 2 mm, 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 | 2.25MHz 400mA Step Down Converter with selectable VOUT 数据表 (Rev. C) | 2009-1-5 | |||
| 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 | ||||
| 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 | ||||
| 应用手册 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015-8-17 | |||
| 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 | |||
| 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）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| WSON (DRV) | 6 | Ultra Librarian |