REG104FA-3

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

The REG104FA-3 is a fixed positive low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It provides a fixed output voltage of 3V with a maximum output current capability of 1A. The device utilizes DMOS technology and features a TO-263-5 (D2PAK-5) surface-mount package. Key electrical specifications include a dropout voltage of 230mV at full load, an input voltage range from 2.1V to 15V, and a reference voltage of 1.295V. It operates within a temperature range of -40°C to +85°C.

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

• Fixed 3V output configuration for stable power supply applications
• High current capability of 1A using DMOS architecture
• Low dropout voltage performance for efficient power management
• Integrated thermal and overcurrent protection mechanisms

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

• Battery-powered portable electronic devices requiring stable 3V rails
• Embedded systems and microcontroller power supplies
• General-purpose low-noise linear regulation in industrial equipment

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

Verify the exact suffix code (e.g., /500, KTTT, G3) as these indicate specific packaging, tape-and-reel quantities, or RoHS compliance variations. Confirm availability status, as older revisions may be obsolete or restricted. Ensure the TO-263-5 footprint matches your PCB design constraints before procurement.

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

Select this component when a fixed 3V output is required with up to 1A load current. Consider the 230mV dropout voltage relative to your minimum input voltage. The TO-263-5 package offers good thermal dissipation compared to smaller SOT packages. Verify that the 15V maximum input rating aligns with your system's supply voltage.

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

This part belongs to the Texas Instruments REG104 series of low-dropout regulators. The series is characterized by its DMOS process technology, which enables high current drive capabilities while maintaining low quiescent current. The REG104 family includes various fixed output voltages and pin-compatible variants for different application needs.

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

Direct substitutes include other Texas Instruments LDOs with similar 1A current ratings and TO-263-5 packages, such as the LP2950 series or TPS7A series, provided the output voltage and pinout compatibility are verified. Cross-reference with equivalent parts from other manufacturers like STMicroelectronics or ON Semiconductor offering 3V fixed outputs.