BA90BC0T

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The BA90BC0T is a fixed-output low-dropout (LDO) linear regulator manufactured by ROHM Semiconductor. It provides a stable 9V output with a maximum current capacity of 1A and an accuracy of ±2% at 25°C. The device operates within an input voltage range of 3V to 16V, featuring a typical dropout voltage of 0.3V at 0.2A load. It utilizes a TO-220FP-3 package and includes built-in thermal shutdown and overcurrent protection circuits for enhanced reliability.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Low saturation PNP output transistor design for minimal voltage drop
• Integrated thermal shutdown circuit prevents damage from overheating
• Built-in overcurrent protection safeguards against short-circuit conditions

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• General purpose DC-DC conversion requiring fixed 9V regulation
• Power supply stages in industrial control systems
• Voltage regulation for electronic equipment operating within -40°C to 105°C

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the specific datasheet version and ordering code before procurement. Confirm that the TO-220FP-3 package matches your PCB footprint requirements. Ensure the fixed 9V output aligns with your system design needs, as variable versions exist within the same family. Check for any end-of-life notices or alternative recommendations from the manufacturer.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 9V output is required with high current capability up to 1A. The low dropout characteristic makes it suitable for applications where the input voltage is close to the desired output. Consider the thermal performance in the TO-220FP-3 package for heat dissipation requirements. Verify that the ±2% accuracy meets your system's tolerance specifications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

The BA90BC0T belongs to the BAxxBC0 series of low-saturation regulators from ROHM. This family offers wide output voltage ranges from 1.5V to 10V with consistent 1A output current capability. The series is characterized by its PNP output stage, which enables lower dropout voltages compared to standard NPN-based LDOs, improving efficiency in power management designs.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

BA80BC0T: Variable output version in the same series. BA90CC0T: Higher withstand voltage variant. BA90DD0WT: Higher current 2A version with shutdown function.