BU18JA3DG-CTR

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

The BU18JA3DG-CTR is a fixed-output CMOS LDO regulator from the BUxxJA3DG-C series, designed for automotive applications. It provides a 1.8V output with a maximum current of 300mA. The device features a typical quiescent current of 37µA and a ripple rejection ratio of 60dB. It operates within an input voltage range of 1.7V to 6V and supports a junction temperature up to 150°C. The unit is housed in a compact SSOP-5 package.

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

• High accuracy fixed output voltage with ±2.0% tolerance
• Integrated shutdown function for power management
• Built-in overcurrent and thermal protection circuits
• Capable of supporting functional safety analysis

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

• Automotive electronic systems
• Low-power sensor supply rails
• ECU peripheral circuitry
• Battery-powered automotive modules

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

Verify the specific suffix 'CTR' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure the part number matches the exact 1.8V output variant required for the design. Cross-reference the AEC-Q100 qualification status and RoHS compliance details directly with the latest datasheet before finalizing procurement orders.

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

Select this component when a stable 1.8V rail is needed for automotive-grade environments requiring low static current consumption. The 300mA output capability suits moderate load requirements. Consider the SSOP-5 footprint for space-constrained PCB layouts. Verify that the 60dB PSRR meets the noise sensitivity requirements of the downstream circuitry.

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

This regulator belongs to the BUxxJA3DG-C series, which are specialized low-dropout regulators engineered specifically for automotive use. The series emphasizes high reliability and low power consumption, making it suitable for demanding vehicle electronics. The BU18JA3DG-CTR represents the 1.8V fixed-output configuration within this family.

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

Consult the manufacturer's replacement guide for direct pin-compatible alternatives. Other variants within the BUxxJA3DG-C series may offer different output voltages or current ratings while maintaining the same package and functionality.