STMicroelectronics Power Load Switch High Side 500mA 5V SOT-23-5

This single-channel high-side power load switch from STMicroelectronics is designed for power distribution applications where heavy capacitive loads and short-circuits are likely to be encountered. It incorporates a 90mΩ N-channel MOSFET high-side power switch, which is controlled by an active low logic enable input.

When the output load exceeds the current limit threshold or a short circuit occurs, the device limits the output current to a safe level by switching into a constant current mode. If continuous heavy overloads and short circuits cause the junction temperature to rise, a thermal protection circuit shuts the switch off automatically to prevent damage. Recovery from a thermal shutdown is automatic once the device has cooled sufficiently. Internal circuitry ensures the switch remains off until a valid input voltage is present.

Key Features and Benefits

• 500mA continuous current
• Thermal and short-circuit protection with overcurrent logic output
• Operating voltage range from 2.7V to 5.5V
• CMOS and TTL compatible enable input
• Undervoltage lockout (UVLO)
• 12µA maximum standby supply current
• ESD protection: 8kV HBM
• Reverse current protection and fault blanking
• Ambient temperature range from -40°C to 85°C
• Compact 5-pin SOT-23 package

This robust power switch offers reliable performance for managing power distribution safely and efficiently in demanding electronic circuits.