FAN1086D285X

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

The FAN1086D285X is a fixed-output positive linear regulator manufactured by onsemi, formerly Fairchild Semiconductor. It provides a fixed output voltage of 2.85V with a maximum continuous output current of 1.5A. The device features a maximum dropout voltage of 1.5V at full load and supports a maximum input voltage of 7.5V. It incorporates internal protection mechanisms including thermal limiting and current limiting. The component is housed in a TO-252AA surface-mount package and operates within a junction temperature range of -40°C to 125°C.

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

• Optimized for low voltage applications requiring critical transient response and minimum input voltage performance.
• Includes on-chip thermal limiting to protect against excessive junction temperatures under overload conditions.
• Features trimmed current limit to ensure specified output current capability and controlled short-circuit current.

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

• Active Terminators for SCSI bus systems
• Low voltage power supply circuits
• Portable electronic devices

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

Verify the manufacturer designation carefully, as the part was originally produced by Fairchild Semiconductor and is now managed by onsemi following corporate acquisition. Confirm the specific suffix 'D285X' corresponds to the 2.85V fixed output variant in the TO-252AA package. Check current product status, as availability may be limited or discontinued depending on the distribution channel.

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

Select this component when a precise 2.85V rail is required for high-current loads up to 1.5A. Ensure the input voltage does not exceed the 7.5V maximum rating. Consider the thermal management requirements given the TO-252AA package and potential power dissipation. Verify that the fixed output voltage meets the target circuit specifications without need for external adjustment resistors.

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

This device belongs to the FAN1086 family of low dropout linear regulators. The family includes adjustable versions and other fixed voltage options such as 2.5V, 3.3V, and 5.0V. These regulators are designed for three-terminal applications offering high output current capability with low dropout voltage characteristics suitable for battery-powered and noise-sensitive systems.

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

Consult official cross-reference data for direct substitutes. Potential equivalents include other 2.85V LDOs from manufacturers like STMicroelectronics (e.g., LD1086 series) if pinout and electrical parameters align. Verify package compatibility and thermal performance before substitution.