FAN1581DX

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

The FAN1581DX is a linear voltage regulator IC manufactured by onsemi, designed for high-current applications. It provides a fixed positive output of 2.5V with a maximum continuous output current capability of 5A. The device operates within an input voltage range up to 7V and features a typical quiescent current of 6 mA. Key electrical parameters include a maximum dropout voltage of 1.18V at full load and a power supply rejection ratio (PSRR) of 80dB at 120Hz. It is housed in a TO-252-5 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 regulated output for sensitive digital loads requiring high current
• Integrates overcurrent and overtemperature protection mechanisms for system reliability
• Utilizes low quiescent current design to minimize standby power consumption

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

• Power distribution networks in portable computing devices
• Voltage regulation for embedded systems and microcontrollers
• Point-of-load regulation in industrial control equipment

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

Verify the exact suffix designation against official documentation, as variations exist within the FAN1581 family. Confirm that the specific part number matches the required output voltage and package type. Check manufacturer status updates regarding obsolescence or lifecycle changes before finalizing procurement plans.

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

Select this component when a fixed 2.5V rail is required with up to 5A capacity. Ensure the input voltage does not exceed 7V to maintain safe operating conditions. Consider thermal management requirements due to the power dissipation inherent in linear regulation at high currents.

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

This component belongs to the FAN1581 series of low-dropout regulators. The series includes adjustable variants and different package options such as TO-263. The FAN1581DX specifically denotes the fixed 2.5V version in the DPAK/TO-252 form factor, targeting cost-sensitive high-current applications.

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

Consult official substitution guides for equivalent parts. Verify pin compatibility and thermal performance if replacing with other LDOs. No direct substitute part numbers are confirmed in the provided data.