BU25JA3DG-CTR

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

The BU25JA3DG-CTR is a fixed-output CMOS LDO regulator from ROHM Semiconductor, designed for automotive applications. It provides a stable 2.5V output with a maximum current of 300mA. The device operates within an input voltage range of 1.7V to 6V and features a typical ripple rejection ratio of 60dB at 1kHz. Key electrical parameters include a maximum dropout voltage of 240mV at full load, a line regulation of 4mV, and a load regulation of 15mV. It supports a junction temperature range from -40°C to +150°C and is housed in a compact SSOP-5 package.

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

• Integrated shutdown function controlled by the EN pin for power management
• Built-in overcurrent protection and thermal shutdown circuits for fault safety
• Capable of driving low ESR ceramic capacitors for output stabilization
• AEC-Q100 qualified for automotive reliability standards

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

• Automotive infotainment system power supplies
• Sensor module voltage regulation in vehicle electronics
• Body control module (BCM) peripheral power distribution
• Instrument cluster logic circuit powering

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

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout compatibility and functional specifications. Ensure the ordering code matches the required tape-and-reel quantity or cut-tape availability. Cross-reference the RoHS status and environmental compliance data with current regulatory requirements before finalizing procurement orders.

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

Select this component when a fixed 2.5V rail is required for automotive-grade circuits with moderate current demands up to 300mA. Consider the SSOP-5 package constraints for PCB layout space. Evaluate the 60dB PSRR performance against system noise sensitivity requirements. Confirm that the input voltage remains above the minimum threshold while accounting for dropout voltage under maximum load conditions.

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

This part belongs to the BUxxJA3DG-C series of automotive-grade linear regulators. The series is characterized by low quiescent current consumption and high output voltage accuracy. These devices are engineered to support functional safety analysis and are suitable for demanding automotive environments requiring robust power management solutions.

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

Check for other variants within the BUxxJA3DG-C family offering different fixed output voltages such as 1.2V, 1.5V, or 3.3V if system requirements change. Verify pin-to-pin compatibility with alternative packages like SOT-23-5 if footprint modifications are permissible.