BU12JA3DG-CTR

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

The BU12JA3DG-CTR is a CMOS LDO regulator designed for automotive applications, manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.2 V with a maximum output current of 300 mA. The device operates within an input voltage range of 1.7 V to 6 V and withstands up to 6.5 V. Key electrical parameters include a typical ripple rejection of 60 dB, a shutdown circuit current of 37 µA, and an output voltage accuracy of ±2.0%. It functions reliably across a temperature range of -40°C to +125°C.

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

• Integrated shutdown function allows output control via the EN pin.
• Built-in overcurrent protection prevents damage from output short circuits.
• Thermal shutdown circuit protects against thermal damage during overload conditions.
• Compatible with low ESR ceramic capacitors for output phase compensation.

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

• Automotive electronic systems requiring low power consumption
• Voltage regulation for sensitive automotive sensors
• Power management in vehicle infotainment units

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

Verify the specific suffix (CTR) corresponds to the required tape and reel packaging configuration. Confirm that the SSOP-5 package variant matches your PCB footprint requirements. Ensure the component meets AEC-Q100 automotive grade standards for your specific application environment. Cross-reference the datasheet revision date to confirm compatibility with your design specifications.

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

Select this component when a fixed 1.2 V output is required for automotive-grade designs. It is suitable for applications needing low quiescent current and robust protection features. Consider the SSOP-5 package size constraints and the 300 mA current limit. Verify that the input voltage range of 1.7 V to 6 V aligns with your system's power supply characteristics.

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

This part belongs to the BUxxJA3DG-C series of low-power linear regulators optimized for automotive use. The series offers various fixed output voltages ranging from 1.2 V to 3.3 V while maintaining consistent performance characteristics. These regulators are designed to support functional safety analysis and meet stringent automotive reliability standards.

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

The BD5212G-1 is listed as a similar level replacement with the same SSOP-5 package. Verify pinout compatibility and parameter alignment before substitution. Check if the alternative meets the same automotive qualification requirements.