BU33JA3DG-CTR

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

The BU33JA3DG-CTR is a fixed-output CMOS LDO regulator designed for automotive applications. It provides a 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 dropout voltage of 240mV at full load. It includes shutdown functionality, overcurrent protection, and thermal shutdown circuits. The IC is housed in an SSOP-5 package and supports operation from -40°C to +150°C.

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

• Integrated shutdown function controlled by the EN pin for power management
• Built-in overcurrent and thermal protection circuits for fault prevention
• Compatible with low ESR ceramic capacitors for output phase compensation

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

• Automotive electronic systems requiring low quiescent current
• Power supply stages for microcontrollers and sensors
• Battery-powered automotive modules needing efficient linear regulation

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

Verify the specific suffix against official ROHM documentation to confirm package type and tape/reel specifications. Ensure the component meets AEC-Q100 qualification requirements if intended for automotive safety analysis. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and revision status before procurement.

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

Select this component when a fixed 2.5V output is required in a compact SSOP-5 footprint. It is suitable for designs needing low standby current and robust protection features in automotive environments. Consider the input voltage range and dropout characteristics relative to the source supply. Verify thermal performance under maximum load conditions within the specified operating temperature range.

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 high voltage withstand capabilities and low consumption current. It is categorized under PMIC voltage regulators and supports functional safety analysis. The device integrates essential protection mechanisms for reliable operation in harsh automotive electrical environments.

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

Check for direct substitutes within the BUxxJA3DG-C family with different output voltages or packages. Verify compatibility with existing PCB footprints and thermal dissipation requirements. Confirm that alternative parts meet the same automotive qualification standards and protection feature sets.