FAN1084T

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

The FAN1084T is a low dropout three-terminal linear regulator manufactured by Fairchild Semiconductor, designed for applications requiring high output current capability up to 4.5A. This device belongs to the FAN1084 series, which includes adjustable and fixed voltage variants optimized for low voltage environments where transient response and minimum input voltage are critical parameters. The component provides stable regulation from an input supply of 5V or less, making it suitable for powering sensitive digital logic and microprocessor circuits in compact power management designs.

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

• Fast transient response capability ensures stability under dynamic load conditions
• Low dropout voltage performance maintained at maximum output current levels
• On-chip thermal limiting protects against excessive junction temperatures during overload
• Standard TO-220, TO-263 center cut, and TO-252 package options available

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

• Desktop PCs, RISC and embedded processors' supply
• GTL, SSTL logic reference bus supply
• Low voltage VCC logic supply
• Battery-powered circuitry
• Post regulator for switching supply

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

Verify the specific suffix designation associated with the FAN1084T part number to confirm whether the unit represents the adjustable version or a specific fixed voltage variant. Confirm package type compatibility with the target PCB footprint. Check manufacturer documentation for any end-of-life notices or recommended replacement components due to potential product lifecycle changes.

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

Select this regulator when designing systems that require a robust 4.5A current capacity with minimal voltage drop between input and output. Ensure the application operates within the specified input voltage range of 5V or less. Consider the thermal management requirements dictated by the chosen package style, as on-chip thermal limiting activates if junction temperatures exceed safe operating limits during sustained high-load operation.

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

The FAN1084T is part of the broader FAN1084 family of low dropout regulators produced by Fairchild Semiconductor. This series is engineered specifically for low voltage microprocessor applications and bus termination tasks. The T suffix typically denotes a specific package configuration or temperature grade within the standard TO-220, TO-263, or TO-252 industrial standard power packages offered by the manufacturer.

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

Public confirmed substitute part numbers: FAN1084D33, FAN1084-1.5, FAN1084-3.3.