FAN2512S285X

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

The FAN2512S285X is a fixed-output linear low-dropout (LDO) voltage regulator manufactured by Fairchild Semiconductor, now part of onsemi. It provides a stable 2.85V output with a maximum continuous current capability of 150mA. The device features a maximum dropout voltage of 0.18V at full load and maintains a quiescent current of 50µA. It operates within an input voltage range up to 6.5V and supports junction temperatures from -40°C to +125°C. Packaged in a compact SOT-23-5 surface-mount case, it includes internal protection against thermal overload.

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

• Provides a fixed 2.85V output voltage for precise power supply requirements
• Delivers up to 150mA of output current with low dropout characteristics
• Incorporates thermal shutdown protection to safeguard the device under fault conditions
• Utilizes a small SOT-23-5 package suitable for space-constrained designs

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

• Portable battery-powered electronic devices requiring efficient voltage regulation
• Embedded systems needing stable low-noise power rails for sensitive components
• Consumer electronics utilizing CMOS logic circuits powered by single-cell batteries

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

Verify component authenticity through official manufacturer channels or authorized distributors due to potential availability issues. Confirm the specific suffix 'X' indicates tape-and-reel packaging if required for automated assembly. Check for obsolescence status as Fairchild Semiconductor operations have transitioned to onsemi, which may affect long-term sourcing strategies and support availability.

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

Select this component when a fixed 2.85V rail is necessary with moderate current demands up to 150mA. Ensure the input voltage does not exceed the 6.5V maximum rating. Consider the 50µA quiescent current for battery life optimization. Verify that the SOT-23-5 footprint matches the PCB layout constraints and thermal management requirements of the target application environment.

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

This part belongs to the FAN2512 series of low-dropout regulators designed for portable applications. It shares architectural similarities with other variants in the family but differs in its fixed output voltage setting. The series is characterized by high PSRR and fast transient response, making it suitable for noise-sensitive digital and analog circuits in mobile and handheld equipment.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult onsemi technical support for direct replacements or evaluate generic LDOs with matching 2.85V output, 150mA current, and SOT-23-5 package specifications.