Texas Instruments UA78M33QDCYRG4Q1 Linear Voltage Regulator, SOT-223-4, 3.3V 0.

The Texas Instruments UA78M33QDCYRG4Q1 is a robust and reliable fixed-voltage linear regulator engineered for a broad spectrum of applications. Designed to provide on-card regulation, it effectively eliminates noise and distribution issues that are common with single-point regulation systems. This device is capable of delivering a steady output current of up to 500mA, making it suitable for powering a variety of circuits and components.

A key strength of this regulator is its comprehensive built-in protection. It features internal current-limiting and thermal-shutdown mechanisms, rendering it highly resistant to overload conditions and enhancing its long-term reliability. The internal short-circuit current limiting and output transistor safe-area compensation provide further safeguarding for both the regulator and the connected load.

This component is versatile; while its primary function is as a fixed 3.3V regulator, it can also be employed with external components to create adjustable output voltages and currents. Furthermore, it serves excellently as the power-pass element in precision regulator designs, offering designers flexibility.

Key Features & Specifications

• Output Voltage: A fixed 3.3V nominal output.
• Input Voltage Range: Accepts a wide input from 5.3V to 25V.
• Maximum Output Current: Capable of delivering up to 500mA.
• Integrated Protection: Includes internal thermal-overload protection, short-circuit current limiting, and safe-area compensation.
• High Power Dissipation: Designed with a high power-dissipation capability.
• Mounting & Package: Supplied in a compact, 4-pin SOT-223-4 surface-mount package for efficient PCB integration.
• Operating Temperature Range: Functions reliably from -40°C to 125°C.
• Environmental Compliance: A green product manufactured without antimony or bromine (no Sb/Br).

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