BL2554 Power Management IC, Adjustable USB Load Current Switch, 2.6–5.5V, 1.3A, SOT23-5 / SOT23-6

The BL2554 is an adjustable USB load current switch designed for power distribution and protection in portable electronics. It integrates current limiting and power switching in a compact package, enabling safe and efficient control of USB-powered loads such as STB and MID devices.

Key Specifications

• Function: Adjustable USB Load Current Switch

• Input Voltage (VIN): 2.6V – 5.5V

• Quiescent Current (IQ): 150µA

• Current Limit Threshold: Max. 1.3A

• On Resistance (R_ON): 250mΩ

• Packages: SOT23-5, SOT23-6

Applications

• Set-top boxes (STB)

• Mobile Internet Devices (MID)

• USB-powered systems

• Portable consumer electronics

Features

• Adjustable current limit for USB loads

• Integrated high-side power switch

• Compact SOT23 package options

• Suitable for low-power portable devices