BL2556 Power Management IC, 5V USB High-Side Current Limited Load Switch, 2.7–5.5V, 2A, SOT23-5

The BL2556 is a high-performance 5V USB high-side load switch with integrated current limiting. Designed for USB peripheral power management, it offers low quiescent current and low on-resistance to ensure efficient power delivery and enhanced system protection.

Key Specifications

• Function: USB High-Side Current Limited Load Switch

• Input Voltage (VIN): 2.7V – 5.5V

• Quiescent Current (IQ): 50µA

• Current Limit Threshold: 2A

• On Resistance (R_ON): 70mΩ

• Package: SOT23-5

Applications

• USB peripherals

• USB power distribution

• Consumer electronics

• Embedded systems

Features

• High-side load switching for USB power

• Low quiescent current operation

• Low on-resistance for high efficiency

• Integrated over-current protection