BD33GA3WNUX-TR

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

The BD33GA3WNUX-TR is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 3.3V output with a maximum current capacity of 0.3A. The device operates within an input voltage range of 4.5V to 14V and features a typical dropout voltage of 450mV at full load, with a maximum of 900mV. It maintains high accuracy with ±1% output voltage tolerance and includes line regulation of 1% and load regulation of 1.5%. The component is housed in a compact VSON-8 package and supports surface-mount installation. It functions reliably across an operating temperature range from -25°C to +85°C.

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

• Integrated overcurrent protection and thermal shutdown circuits prevent damage during short-circuit or overload conditions.
• Includes an ON/OFF switch function that reduces circuit current to 0µA when disabled, minimizing power consumption.
• Designed for use with ceramic output capacitors to support system miniaturization and long-term reliability.

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

• Digital home appliances
• Portable electronic devices requiring stable 3.3V logic supplies
• General-purpose power management in consumer electronics

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

Verify the specific suffix WNUX-TR against official ROHM documentation to confirm the VSON-8 packaging and tape-and-reel configuration. Ensure compatibility with RoHS directives as indicated in manufacturer specifications. Confirm that the application environment remains within the specified -25°C to +85°C operational temperature limits to maintain performance integrity.

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

Select this component for applications requiring a fixed 3.3V supply with moderate current demands up to 300mA. It is suitable where space constraints favor the VSON-8 footprint. Consider the 4.5V minimum input requirement when designing the power rail. Verify that ceramic capacitors are used for output stability as recommended by the manufacturer.

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

This part belongs to the BDxxGA3W series of LDO regulators from ROHM Semiconductor. The series offers both fixed and adjustable output variants in HTSOP-J8 and VSON packages. The BD33GA3WNUX-TR specifically denotes the 3.3V fixed output version in the smaller VSON-8 form factor, targeting cost-sensitive and space-constrained consumer markets.

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

Cross-reference with other BD33GA3WNUX variants if different packaging options are required. Check for automotive-grade equivalents like the BD33GA3VEFJ-ME2 if extended temperature ranges (-40°C to +105°C) or AEC-Q100 qualification are necessary for the target application.