BD50GA3WNUX-TR

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

The BD50GA3WNUX-TR is a fixed-output low-dropout (LDO) voltage regulator manufactured by ROHM Semiconductor. It provides a stable 5V output with a maximum continuous current of 300mA. The device operates within an input voltage range of 4.5V to 14V and features high accuracy with ±1% output voltage tolerance at 25°C. Key electrical parameters include a typical dropout voltage of 0.6V at full load, a quiescent circuit current of 0.6mA, and a ripple rejection ratio of 60dB. Load regulation is specified at 25mV from no-load to full-load conditions.

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

• Integrates overcurrent protection, thermal shutdown, and soft-start functionality to ensure operational safety under fault conditions.
• Includes an ON/OFF switch function that reduces circuit current to 0µA during shutdown for effective power management.
• Designed for use with ceramic output capacitors, supporting system miniaturization and enhanced long-term reliability.

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

• Digital home appliances requiring stable 5V logic supply
• Portable electronic devices utilizing battery or adapter power sources
• General-purpose embedded systems needing compact linear regulation

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

Verify the specific suffix -TR indicates tape-and-reel packaging configuration when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure input voltage does not exceed the 14V absolute maximum rating to prevent device damage. Check thermal dissipation requirements based on ambient temperature and load current to maintain operation within the -25°C to +85°C range.

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

Select this component for applications requiring a fixed 5V rail with moderate current demands up to 300mA. The VSON008X2030 package offers a small footprint suitable for space-constrained designs. Consider the 0.6V dropout voltage when designing for low headroom scenarios. The integrated soft-start feature aids in reducing inrush current during system initialization compared to regulators without this function.

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

This part belongs to the BDxxGA3WNUX series of LDO regulators from ROHM Semiconductor. The series includes both fixed and adjustable output variants with 300mA capability. The BD50GA3WNUX-TR specifically denotes the 5V fixed output version in the VSON-8 package. This family is designed for standard commercial applications rather than automotive environments.

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

BD50GA3WEFJ-E2: Fixed 5V output, 300mA, but uses HTSOP-J8 package instead of VSON-8. Pinout and performance are similar, but physical dimensions differ. Verify board layout compatibility before substitution.