FAN1117AS285X

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

The FAN1117AS285X is a fixed-output Low Dropout (LDO) linear voltage regulator manufactured by onsemi. It provides a fixed output voltage of 2.85 V with a maximum continuous output current of 1 A. The device operates within an input voltage range of 2.5 V to 17 V and features a maximum dropout voltage of 1.2 V at full load. It is housed in a TO-261AA (SOT-223-4) surface-mount package. Internal protections include overcurrent limiting and thermal shutdown. The component supports operation across a junction temperature range of 0°C to +125°C.

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

• Provides stable fixed voltage regulation for sensitive electronic circuits
• Integrates internal thermal shutdown and overcurrent protection mechanisms
• Designed for surface-mount assembly using the SOT-223-4 package

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

• Portable battery-powered equipment requiring efficient power management
• Embedded systems utilizing microcontrollers and digital logic
• Communication modules needing regulated low-noise power supplies

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

Verify component authenticity through authorized distributors or direct manufacturer channels, as this part is obsolete. Confirm that the received unit matches the specific 2.85 V output specification and TO-261AA package type. Request original manufacturer documentation to validate performance characteristics against datasheet standards before integration into production designs.

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

Select this component only if a fixed 2.85 V output is strictly required and the 1 A current capacity meets system demands. Ensure the design accommodates the thermal dissipation limits inherent to the SOT-223-4 package under expected load conditions. Consider that the obsolete status necessitates evaluating long-term supply chain stability and potential redesign requirements for future manufacturing phases.

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

This device belongs to the FAN1117 family of LDO regulators from onsemi, designed for general-purpose power management applications. The series offers various fixed output voltages and packaging options to suit different board space and current requirements. As an obsolete product, it represents legacy technology previously used in consumer electronics and industrial control systems where reliable linear regulation was prioritized.

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

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult official manufacturer resources for current equivalent recommendations.