TPS62250 - 用于 USB 应用的 2.25MHz 500mA 电流限制降压转换器

TPS62250是TI德州仪器公司的一款转换器（集成开关）产品，TPS62250是用于 USB 应用的 2.25MHz 500mA 电流限制降压转换器，本站介绍了TPS62250的封装应用图解、特点和优点、功能等，并给出了与TPS62250相关的TI元器件型号供参考。

TPS62250 - 用于 USB 应用的 2.25MHz 500mA 电流限制降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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.

产品特性

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

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