Texas Instruments

REG104GA-3.3  

Linear & Switching Voltage Regulators

REG104GA-3.3 Description

The REG104GA-3.3 is a high-performance, fixed-output linear voltage regulator from Texas Instruments, designed to deliver a stable 3.3V output at up to 1A of continuous current. With a wide input voltage range of up to 15V, this regulator is optimized for applications requiring efficient power conversion with minimal dropout voltage (0.48V @ 1A). Its low quiescent current (0.7 mA) and high PSRR (65dB at 120Hz) ensure reliable operation in noise-sensitive environments. Packaged in a SOT223-6 surface-mount form factor, the REG104GA-3.3 is ideal for space-constrained designs.

REG104GA-3.3 Features

• Fixed 3.3V Output: Precision-regulated voltage for stable power delivery.
• High Efficiency: Low dropout voltage (0.48V @ 1A) minimizes power dissipation.
• Robust Protection: Integrated over-current and over-temperature safeguards enhance reliability.
• Low Quiescent Current: 0.7 mA typical, optimizing battery-powered applications.
• Enable Control: External enable pin for power management flexibility.
• High PSRR: 65dB at 120Hz ensures clean output in noisy environments.
• RoHS3 Compliant & REACH Unaffected: Meets environmental and regulatory standards.
• Wide Input Range: Supports up to 15V, accommodating diverse power sources.

REG104GA-3.3 Applications

• Industrial Automation: Powering sensors, microcontrollers, and communication modules.
• Consumer Electronics: Voltage regulation for portable devices, IoT nodes, and embedded systems.
• Automotive Systems: Auxiliary power for infotainment and telematics (non-safety-critical).
• Medical Devices: Low-noise power supply for diagnostic equipment and wearable monitors.
• Telecommunications: Baseband processing and RF modules requiring stable voltage rails.

Conclusion of REG104GA-3.3

The REG104GA-3.3 stands out as a reliable, high-efficiency linear regulator for demanding applications. Its combination of low dropout, high PSRR, and robust protection makes it superior to basic LDOs, particularly in noise-sensitive or power-constrained designs. While classified as Last Time Buy, its performance and Texas Instruments' pedigree ensure it remains a compelling choice for legacy or new designs requiring a proven 3.3V regulator solution. Ideal for engineers seeking a balance of performance, size, and cost in industrial, consumer, and automotive applications.

REG104GA-3.3 Documents

Download datasheets and manufacturer documentation for REG104GA-3.3

PCN Assembly/Origin :

Assembly/Test Site Add 18/Nov/2011      

Datasheets :

REG104 Datasheet      

PCN Obsolescence/ EOL :

EOL NOTICE 15/Nov/2023      

PCN Design/Specification :

Mult Devices 20/Jul/2017       Die Attach Update RevB1 18/Apr/2017