BD18GA3WNUX-TR

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

The BD18GA3WNUX-TR is a positive fixed-output linear low-dropout (LDO) voltage regulator manufactured by Rohm Semiconductor. It provides a stable 1.8V output with a maximum current capacity of 300mA. The device operates within an input voltage range up to 14V and features a typical dropout voltage of 0.6V at full load. It incorporates internal protection mechanisms including overcurrent, thermal shutdown, and short-circuit protection. The component supports enable control and soft-start functionality, ensuring reliable power management in compact surface-mount applications.

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

• Integrated overcurrent, thermal shutdown, and short-circuit protection circuits prevent IC damage under fault conditions.
• Features an ON/OFF switch function that reduces circuit current to zero during shutdown for energy efficiency.
• Includes soft-start capability to manage inrush currents and ensure stable power-up sequences.

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

• Digital home appliances
• Portable electronic devices requiring compact power regulation
• General-purpose low-noise power supply circuits

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

Verify the specific suffix WNUX-TR to confirm the VSON008X2030 package and tape-and-reel packaging format. Ensure compatibility with RoHS3 standards if required by your manufacturing process. Confirm that the fixed 1.8V output aligns with your system's voltage requirements, as this variant does not support external resistor adjustment for variable output voltages.

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

Select this component when a small footprint and high accuracy are prioritized over adjustable output ranges. The VSON008X2030 package offers excellent thermal dissipation relative to its size. Consider the 1.8V fixed output constraint; if variable voltage settings between 1.5V and 13.0V are needed, alternative variants within the BDxxGA3 series should be evaluated instead.

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

This part belongs to the BD18GA3 series of high-accuracy LDO regulators designed for digital equipment. The series distinguishes itself by offering both fixed-output versions like this one and adjustable versions using external resistors. The NUX suffix indicates the specific ultra-small VSON package, differentiating it from the HTSOP-J8 packaged counterparts in the same functional family.

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

Direct replacements include other BD18GA3 variants with identical electrical specifications but different packages, such as BD18GA3WEFJ-E2. Verify pinout compatibility and thermal performance characteristics when substituting across different package types within the same manufacturer's lineup.