Texas Instruments

TPS79633DCQ  

Linear & Switching Voltage Regulators

TPS79633DCQ Description

The TPS79633DCQ from Texas Instruments is a high-performance, fixed-output 3.3V, 1A low-dropout (LDO) linear voltage regulator in a SOT-223-6 package. Designed for precision power management, it features a 5.5V maximum input voltage and a low dropout of 0.33V at 1A, making it ideal for applications with tight voltage margins. With a quiescent current of 385 µA and excellent PSRR (59dB to 42dB from 100Hz to 100kHz), it ensures stable power delivery in noise-sensitive environments. The device is ROHS3 compliant and rated for MSL 2 (1 Year) moisture sensitivity, ensuring reliability in industrial and consumer electronics.

TPS79633DCQ Features

• High Accuracy & Efficiency: Fixed 3.3V output with tight voltage regulation and low dropout (0.33V @ 1A).
• Low Noise & High PSRR: 59dB PSRR at 100Hz minimizes output ripple, critical for RF and analog circuits.
• Robust Protection: Integrated safeguards include over-current, over-temperature, reverse polarity, and UVLO (Under Voltage Lockout).
• Enable Control: Enable pin allows for power sequencing and low-power modes.
• Compact & Reliable: SOT-223-6 package offers a space-saving footprint with thermal performance suited for high-current applications.
• Wide Operating Range: Supports input voltages up to 5.5V, compatible with 5V and Li-ion battery systems.

TPS79633DCQ Applications

• Portable Electronics: Ideal for battery-powered devices like handheld instruments, IoT sensors, and wearables due to low Iq and dropout.
• Industrial Systems: Suitable for PLCs, motor control, and automation where stable voltage and protection features are critical.
• RF/Analog Circuits: High PSRR makes it perfect for powering noise-sensitive components like ADCs, DACs, and transceivers.
• Embedded Systems: Used in microcontrollers, FPGAs, and DSPs requiring clean, regulated 3.3V rails.
• Automotive Subsystems: Compliant with harsh-environment demands (non-automotive qualified but robust for ancillary systems).

Conclusion of TPS79633DCQ

The TPS79633DCQ stands out as a high-performance LDO regulator, combining low noise, high PSRR, and robust protection in a compact package. Its 1A output current, enable control, and wide input range make it versatile for portable, industrial, and precision analog applications. While marked as Last Time Buy, its reliability and efficiency ensure it remains a preferred choice for designs requiring stable 3.3V power with minimal dropout. Engineers should consider this regulator for noise-sensitive or space-constrained systems where TI’s proven performance is paramount.

TPS79633DCQ Documents

Download datasheets and manufacturer documentation for TPS79633DCQ

PCN Assembly/Origin :

Assembly/Test Site Add 18/Nov/2011      

Datasheets :

TPS79625DCQG4      

PCN Obsolescence/ EOL :

LDO Dev EOL 31/May/2023      

HTML Datasheet :

TPS79625DCQG4