FAN1086DX

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

The FAN1086DX is a discontinued adjustable positive low dropout linear regulator manufactured by onsemi. It provides a maximum output current of 1.5A with a maximum input voltage rating of 7.5V. The device delivers an adjustable output voltage range from 1.25V to 6V. It features a maximum dropout voltage of 1.5V at full load and offers a power supply rejection ratio of 72dB at 120Hz. The component is housed in a TO-252AA surface-mount package and operates within a temperature range of 25°C to 125°C.

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

• Adjustable positive output voltage configuration
• Integrated thermal limiting protection
• Trimmed current limit for controlled short-circuit behavior

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

• Active Terminators for SCSI bus applications
• Low voltage transient response circuits
• General purpose linear regulation systems

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

This component has been officially declared obsolete and is no longer in production. Procurement must rely on secondary market distributors or verified surplus stock. Verify the manufacturing date code and physical condition carefully, as availability varies significantly among suppliers. Ensure that any sourced units match the original specifications before integration into designs.

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

Designers requiring this specific regulator profile should consider alternative components due to the part's end-of-life status. Evaluate replacement options based on matching electrical parameters such as output current capability, dropout voltage characteristics, and package compatibility. Confirm that substitute devices meet the required thermal management and protection feature requirements for the target application environment.

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

The FAN1086DX belongs to the FAN1086 family of three-terminal low dropout regulators. This series includes both adjustable and fixed voltage variants optimized for low voltage applications where minimum input voltage and transient response are critical design factors. The family utilizes standard SOT-223, TO-263, and TO-252 packages to support various mounting and thermal dissipation needs.

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

Publicly confirmed substitute part numbers include LD1086DTTR and LD1086DTTRY from STMicroelectronics. These alternatives are listed as similar replacements for the discontinued FAN1086DX.