FAN1117AD18X

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

The FAN1117AD18X is a fixed-output low dropout (LDO) linear voltage regulator manufactured by onsemi. It provides a fixed output voltage of 1.8 V with a maximum 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. Key electrical specifications include a static current of 13 mA, line regulation of 0.2 %/V, and load regulation of 0.5 %. It is housed in a TO-252-3 surface-mount package and supports an operating temperature range from 0°C to +125°C.

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

• Provides stable 1.8 V regulated output for sensitive digital logic circuits
• Includes internal thermal overload and current limit protection mechanisms
• Designed for efficient power management with low quiescent current consumption

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

• Portable battery-powered equipment requiring efficient voltage regulation
• Consumer electronics utilizing 1.8 V logic families
• Embedded systems needing reliable linear power supply stages

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

Verify component authenticity through authorized distribution channels due to the part's obsolete status. Confirm RoHS compliance documentation matches specific manufacturing lot requirements. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to assembly. Validate that the TO-252-3 footprint aligns with existing PCB design constraints.

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

Select this component when a fixed 1.8 V output is required rather than adjustable configurations. Consider the TO-252-3 package for adequate thermal dissipation in space-constrained designs. Evaluate the 1 A current capability against peak load demands to ensure operation remains within safe operating area limits during transient conditions.

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

This component belongs to the FAN1117 series of LDO regulators, which are designed for general-purpose power management applications. The series offers various fixed output voltages and packages, including SOT-223 and TO-220 variants. The FAN1117AD18X specifically targets applications requiring a precise 1.8 V rail with high reliability and robust protection features.

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

Publicly confirmed substitute part numbers include LD1117DT18CTR and LD1117DT18TR from STMicroelectronics. These alternatives offer similar electrical characteristics and pin compatibility for direct replacement in existing designs.