REG104FA-5KTTT

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

The REG104FA-5KTTT is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, providing a stable 5.0V output with a maximum load current of 1A. It utilizes a DMOS topology to achieve a typical dropout voltage of 320mV at full load. The device features very low output noise and high accuracy, maintaining regulation within ±2% over temperature variations from -40°C to +85°C. It includes an enable control pin for power management and internal protection against overcurrent and thermal overload.

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

• DMOS topology provides ultra-low dropout voltage and fast transient response without requiring a minimum output capacitor for stability
• Very low output noise characteristics suitable for sensitive portable communication equipment
• Integrated enable control allows for precise power management with minimal ground current in disabled mode
• Internal circuitry provides comprehensive protection including current limiting and thermal shutdown

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

• Portable communication devices
• Battery-powered equipment
• Modems
• Bar-code scanners
• Backup power supplies

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

Verify the specific ordering suffix KTTT corresponds to the DDPAK-5 package with a reel quantity of 50 units. Confirm RoHS compliance status and lead finish details via the latest Package Option Addendum or manufacturer datasheet before finalizing procurement specifications.

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

Select this component when a fixed 5V output is required with a 1A capacity and low dropout performance. Ensure the input voltage remains within the specified operating range of 2.1V to 15V. Consider the thermal resistance characteristics of the DDPAK-5 package for adequate heat dissipation under maximum load conditions.

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

This part belongs to the REG104 family of low-noise, low-dropout regulators. The 'F' indicates the DDPAK-5 surface-mount package, while '5' specifies the 5.0V fixed output version. The 'KTTT' suffix denotes the specific tape-and-reel packaging configuration used for automated assembly processes.

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

Direct substitutes include other REG104 variants such as REG104FA-5/500G3 or REG104GA-5 depending on package preference. Verify that any replacement maintains the same 5V output, 1A current rating, and compatible pinout configuration.