REG104FA-2.5/500G3

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

The REG104FA-2.5/500G3 is a fixed-output low-dropout (LDO) linear regulator manufactured by Texas Instruments, belonging to the REG104 series. It provides a fixed output voltage of 2.5 V with a maximum continuous output current of 1 A. The device utilizes DMOS technology and features a positive polarity configuration. Key electrical parameters include a typical dropout voltage of 230 mV at full load and a quiescent current of 1.7 mA. It operates within an ambient temperature range of -40 °C to +85 °C and is housed in a TO-263-5 surface-mount package.

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

• Integrates DMOS pass element for efficient power regulation
• Includes internal protection mechanisms against overcurrent and thermal overload
• Provides stable fixed voltage output without external feedback components

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

• Battery-powered portable electronic devices requiring stable 2.5 V rails
• Embedded systems utilizing microcontrollers or logic circuits operating at 2.5 V
• Industrial control modules needing reliable linear voltage regulation

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

Verify the complete part number including the G3 suffix to ensure compliance with RoHS directives and lead-free manufacturing standards. Confirm that the TO-263-5 package variant matches your PCB footprint requirements. Cross-reference the specific output voltage tolerance and thermal characteristics against your system's power budget and heat dissipation capabilities before finalizing procurement.

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

Select this component when a 1 A current capacity is required at a fixed 2.5 V output. Ensure the input voltage remains sufficiently above the output to maintain regulation within the specified dropout voltage. Consider the thermal performance in the TO-263-5 package under maximum load conditions to determine if additional heatsinking is necessary for your enclosure design.

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

This device is part of the Texas Instruments REG104 family of high-current LDO regulators. The family offers various fixed output voltages and current ratings, designed for applications demanding low noise and high line/load regulation. The REG104 series is characterized by its robust DMOS architecture, providing reliability in industrial and consumer electronics environments.

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

Direct replacements must match the 2.5 V output, 1 A current rating, and TO-263-5 package. Verify pin compatibility and thermal resistance values. Alternative parts from other manufacturers may require schematic adjustments due to differences in pinout or control characteristics.