FAN2512S28X

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

The FAN2512S28X is a low-dropout (LDO) linear voltage regulator manufactured by Fairchild Semiconductor, now part of onsemi. It provides a fixed output voltage of 2.8 V with a maximum continuous output current of 100 mA. The device is housed in a compact SOT-23-5 surface-mount package and operates within an extended temperature range from -40°C to +125°C. Designed for CMOS applications, it features fast start-up capabilities and low quiescent current to optimize power efficiency in battery-operated systems.

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

• Provides a stable fixed 2.8 V output regulated by internal feedback loops
• Delivers up to 100 mA load current capability for portable electronics
• Incorporates fast start-up circuitry to minimize initialization delays
• Operates reliably across industrial temperature ranges without thermal shutdown

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

• Portable consumer electronics requiring stable logic supply rails
• Battery-powered devices needing efficient power management
• Embedded systems utilizing CMOS logic families
• Wireless communication modules with strict voltage tolerance requirements

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

Verify the manufacturer status as onsemi acquired Fairchild Semiconductor; datasheets may bear either brand name. Confirm the specific suffix 'X' indicates tape-and-reel packaging if required for automated assembly. Check for obsolescence notices or lifecycle changes since the component originates from the legacy Fairchild portfolio. Ensure compatibility with RoHS directives if sourcing from secondary distributors.

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

Select this regulator when a precise 2.8 V rail is necessary for CMOS circuits. Compare dropout voltage specifications against input voltage variations to ensure regulation stability. Evaluate quiescent current consumption relative to battery life requirements. Consider the SOT-23-5 footprint constraints during PCB layout planning. Verify thermal dissipation needs based on expected load currents and ambient temperatures.

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

This component belongs to the FAN25xx series of low-power LDO regulators designed for portable applications. It shares architectural similarities with other members like the FAN2508 and FAN2513 but differs in output voltage and current ratings. The series emphasizes low noise and fast transient response suitable for sensitive analog and digital loads in space-constrained designs.

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

Direct substitutes include the FAN2512S30X for 3.0 V output or FAN2512S33X for 3.3 V output within the same package. Cross-brand equivalents such as the MIC5205 or NCP1117 require verification of pinout compatibility and electrical parameter alignment before integration.