Texas Instruments UA78M33CDCYR 3.3V 500mA Linear Voltage Regulator, SOT-223-4

The Texas Instruments UA78M33CDCYR is a robust, fixed 3.3V positive linear voltage regulator engineered for a diverse array of electronic applications. It is designed to provide stable, on-card regulation, effectively eliminating noise and distribution issues often associated with single-point regulation systems. This device is capable of delivering a continuous output current of up to 500mA, making it suitable for powering a wide range of low to moderate-power circuits.

A key benefit of this regulator is its comprehensive suite of integrated protection features. These include internal current-limiting and thermal-shutdown mechanisms, which make the device highly resistant to overload conditions and potential damage from excessive heat. This built-in resilience ensures reliable operation and enhances the longevity of both the regulator and the end application.

The UA78M33CDCYR operates from a wide input voltage range of 5.3V to 25V, offering significant flexibility in design. Beyond its primary function as a fixed-voltage regulator, the device can be used with external components to create adjustable output voltages and currents, or serve as the power-pass element within more complex precision regulator circuits.

Packaged in a compact, surface-mount SOT-223-4 case, it is ideal for modern, space-constrained PCB designs. The device is also classified as a green product, manufactured without antimony or brominated flame retardants (no Sb/Br), aligning with environmentally conscious manufacturing practices.

Key Features & Specifications

• Output Voltage: Fixed at 3.3V.
• Maximum Output Current: 500mA.
• Input Voltage Range: 5.3V to 25V.
• Integrated Protections: Internal thermal-overload protection, short-circuit current limiting, and output transistor safe-area compensation.
• Package: SOT-223-4 (Surface Mount).
• Operating Temperature Range: 0°C