FAN1117AD25X

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

The FAN1117AD25X is a fixed positive low dropout linear regulator manufactured by onsemi. It provides a fixed output voltage of 2.5 V with a maximum continuous output current of 1 A. The device operates within an input voltage range from 2.5 V to 17 V and features a typical dropout voltage of 1.2 V at full load. It incorporates internal thermal overload protection, current limiting, and safe operating area protection. The component is housed in a TO-252 (DPAK) surface-mount package and is rated for operation over a temperature range of 0°C to +125°C.

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

• Provides a stable fixed 2.5 V output voltage suitable for sensitive digital logic circuits
• Delivers up to 1 A of continuous output current for power-hungry applications
• Includes comprehensive internal protections against thermal overload, short circuits, and excessive power dissipation

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

• Power supply regulation for embedded systems requiring a 2.5 V rail
• Biasing and powering field-programmable gate arrays (FPGAs)
• Voltage regulation for microcontroller units (MCUs) and digital signal processors (DSPs)

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

Verify the specific manufacturer source, as this part number appears across multiple distributors including Fairchild and Rochester Electronics. Confirm that the received component matches the onsemi datasheet specifications regarding pinout and electrical characteristics. Ensure the package type corresponds to the required PCB footprint before integration into the design.

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. It is appropriate for designs where input voltages vary between 2.5 V and 17 V. Consider the thermal performance in the TO-252 package under maximum load conditions. Verify that the 1.2 V dropout voltage meets the minimum headroom requirements of the specific application circuit.

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

This device belongs to the FAN1117 series of low dropout regulators. The series offers various fixed output voltages and adjustable versions. The AD suffix typically denotes a specific output voltage variant, while the X suffix often indicates tape and reel packaging. This family is designed for general-purpose linear regulation tasks in consumer and industrial electronics.

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

Publicly confirmed substitute part numbers are not available in the provided documentation. Cross-reference with other 1 A LDO regulators offering a 2.5 V fixed output and compatible TO-252 packaging if direct substitution is necessary.