TPS2501 - 具有升压转换器的集成 USB 电源开关

TPS2501是TI德州仪器公司的一款含升压转换器的开关产品，TPS2501是具有升压转换器的集成 USB 电源开关，本站介绍了TPS2501的封装应用图解、特点和优点、功能等，并给出了与TPS2501相关的TI元器件型号供参考。

TPS2501 - 具有升压转换器的集成 USB 电源开关 - 含升压转换器的开关 - USB电源和充电端口控制器 - 德州仪器

产品描述

The TPS2500 and TPS2501 provide an integrated solution to meet USB 5-V power requirements from a 1.8-V to 5.25-V input supply. The features include a Hi-Speed USB compliant power output, output switch enable, current limit, and overcurrent fault reporting.

The 1.8-V to 5.25-V input can be supplied by sources including dc/dc regulated supplies (e.g., 3.3 V), or batteries such as single-cell Li+ or three-cell NiCd, NiMH, or alkaline.

The USB power-switch current limit is programmable via an external resistor from as low as 130 mA to as high as 1400 mA (typical). Two standard USB ports can be supported from a single TPS2500 or TPS2501 at the 1400-mA setting.

Additionally, the boost converter output is available as an auxiliary 5.1-V output to power additional loads. The total current supplied by the USB output and the auxiliary cannot exceed 1148 mA at VIN = 3 V.

产品特性

Integrated Synchronous Boost Converter and USB Current-Limit Power Switch
Light-Load, High-Efficiency Eco-mode™ Control Scheme (TPS2500) or Constant Frequency (TPS2501)
1.8-V to 5.25-V Input Voltage (2.2-V Minimum Start-Up Voltage)
Adjustable USB Current Limit
- 130 mA to 1400 mA (Typical)
Accurate 20% Current Limit at 1.4-A Setting
Powers up to Two Standard USB Ports
Auxiliary 5.1-V Output
Fast Overcurrent-Response Time – 5 µs Typical
Small 3-mm × 3-mm × 0.9-mm SON-10 Package
15-kV / 8-kV System-Level ESD Capable
UL Listed - File No. E169910
APPLICATIONS
- Portable Applications Using Single Li+ Cell
- USB Hosts Without Native 5-V Supplies

Eco-mode, PowerPAD are trademarks of Texas Instruments. All other trademarks are the property of their respective owners.

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