BU1AUA3WNVX-TL

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

The BU1AUA3WNVX-TL is a single-output low-dropout (LDO) linear voltage regulator manufactured by ROHM Semiconductor. It provides a fixed output voltage of 1.05 V with a maximum output current capability of 300 mA. The device is housed in a compact SSON-4 surface-mount package, designed for space-constrained applications. It operates within an ambient temperature range of -40°C to +85°C. As part of the BU1AUA3WNVX series, it functions as a CMOS LDO regulator intended for power management in portable electronic devices requiring stable, low-noise power supplies.

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

• Single-output fixed voltage regulation architecture
• Compact SSON-4 surface-mount packaging for space efficiency
• CMOS-based low-dropout regulator design

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

• Portable electronic devices requiring stable power rails
• Battery-powered equipment needing efficient voltage regulation
• General-purpose power management in consumer electronics

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

Verify component authenticity and datasheet alignment before integration. Confirm RoHS compliance status via official documentation. Check lifecycle status as some variants may be marked NRND. Ensure supply chain sources are authorized distributors to mitigate counterfeit risks. Validate package marking and pinout compatibility with existing PCB layouts during procurement planning.

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

Select this component when a fixed 1.05 V output is required with up to 300 mA load current. Consider the SSON-4 package size constraints and thermal performance requirements. Evaluate input voltage headroom against the specific dropout characteristics documented in the official datasheet. Compare against other fixed-voltage LDOs in the same series if alternative voltage outputs are needed.

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

This component belongs to the BUxAUAWNVX series of low-dropout regulators from ROHM Semiconductor. These devices are characterized by their small footprint and suitability for mobile applications. The BU1AUA3WNVX-TL specifically denotes the 1.05 V fixed output variant within this family, sharing common architectural features with other members like the BU12UA3WNVX-TL or BU15UA3WNVX-TL, differing primarily in output voltage setting.

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

What is the output voltage tolerance for the BU1AUA3WNVX-TL?

The official datasheet specifies the output voltage accuracy, which defines the tolerance band around the nominal 1.05 V output.

Does the BU1AUA3WNVX-TL include overcurrent protection?

ROHM LDO regulators in this series typically incorporate internal protection circuits; verify specific OCP details in the electrical characteristics section of the datasheet.