FAN1117AT25

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

The FAN1117AT25 is a fixed positive low dropout linear regulator providing a stable 2.5 V output with a maximum current capacity of 1 A. It features a typical dropout voltage of 1.1 V at full load and supports input voltages up to 18 V. The device utilizes a TO-220-3 through-hole package, ensuring robust thermal performance for power dissipation applications. It includes internal current limiting and thermal shutdown protection mechanisms to safeguard against overload conditions.

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

• Provides a fixed 2.5 V regulated output voltage
• Supports continuous output current up to 1 A
• Operates with an input voltage range extending to 18 V
• Includes integrated thermal shutdown and current limit protection

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

• General-purpose linear voltage regulation in electronic circuits
• Power supply stages requiring stable 2.5 V rails
• Battery-powered systems utilizing through-hole mounting

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

Verify the manufacturer origin, as this component was originally developed by Fairchild Semiconductor and is now managed by onsemi. Confirm that the specific part number corresponds to the TO-220-3 through-hole package variant rather than surface-mount alternatives. Ensure compliance with relevant environmental standards if required for your specific application context.

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

Select this component when a fixed 2.5 V output is required with high current capability in a through-hole configuration. It is suitable for applications where the input voltage remains within the 18 V maximum limit. Consider the thermal requirements of the TO-220 package for adequate heat dissipation during operation under full load conditions.

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

This regulator belongs to the FAN1117 series of 1 A adjustable and fixed low dropout linear regulators. The series offers various fixed voltage options and package types, including surface-mount and through-hole configurations. The AT25 designation specifically identifies the 2.5 V fixed output version housed in the TO-220-3 package.

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

Compatible substitutes include other 1 A LDO regulators with similar voltage and current ratings. Verify pinout compatibility and thermal characteristics before substitution. Check for equivalent dropout voltage specifications to ensure performance parity in the target circuit design.