STMicroelectronics

ST2054BD

ST2054BD Description

The ST2054BD is a high-side power switch manufactured by STMicroelectronics, designed for general-purpose applications. This IC features a 2 x 1:2 ratio, offering four outputs with a maximum current capacity of 500mA per output. It operates within a load voltage range of 2.7V to 5.5V and is optimized for surface-mount applications. The ST2054BD is housed in a tube package and is REACH unaffected, RoHS3 compliant, and classified under ECCN EAR99. It also has a moisture sensitivity level (MSL) of 1, indicating it is suitable for unlimited exposure to moisture.

ST2054BD Features

• Output Configuration: High Side
• Current - Output (Max): 500mA
• Voltage - Load: 2.7V to 5.5V
• Rds On (Typ): 80mOhm
• Number of Outputs: 4
• Fault Protection: Current Limiting (Fixed), Over Temperature, UVLO
• Mounting Type: Surface Mount
• Package: Tube
• Interface: On/Off
• Base Product Number: ST2054

The ST2054BD stands out with its low on-state resistance (Rds On) of 80mOhm, which minimizes power loss and enhances efficiency. The device also includes robust fault protection mechanisms such as fixed current limiting, over-temperature protection, and under-voltage lockout (UVLO), ensuring reliable operation in various conditions.

ST2054BD Applications

The ST2054BD is ideal for applications requiring efficient power switching and management. Its high-side configuration and multiple outputs make it suitable for:

• Power Distribution: Efficiently managing power distribution in systems with multiple loads.
• Battery Management: Ensuring safe and reliable power delivery to battery-operated devices.
• Consumer Electronics: Providing power switching in devices such as smartphones, tablets, and laptops.
• Industrial Equipment: Managing power in industrial control systems and automation equipment.

Conclusion of ST2054BD

The ST2054BD is a versatile and reliable power switch designed for general-purpose applications. Its high-side configuration, low on-state resistance, and comprehensive fault protection make it an excellent choice for power management in various electronic systems. Despite being marked as obsolete, the ST2054BD remains a robust solution for applications requiring efficient power switching and management.