onsemi

MC33375ST-5.0T3G

MC33375ST-5.0T3G Description

The MC33375ST-5.0T3G from onsemi is a fixed-output, low-dropout (LDO) linear voltage regulator designed for precision power management in space-constrained applications. Delivering a stable 5V output at up to 300mA, it features a low dropout voltage of 0.5V (max) @ 300mA, ensuring efficient operation even with input voltages as low as 5.5V. Its 13V maximum input voltage rating makes it suitable for a wide range of power sources, including automotive and industrial systems. The device boasts a 75dB PSRR (120Hz), minimizing noise in sensitive circuits, and a low quiescent current of 200 µA, enhancing energy efficiency. Packaged in a SOT-223 surface-mount form factor with tape-and-reel (TR) delivery, it is optimized for automated assembly.

MC33375ST-5.0T3G Features

• Fixed 5V Output: Precision-regulated voltage for stable power delivery.
• Low Dropout Voltage: 0.5V (max) @ 300mA, enabling operation near the output voltage.
• High PSRR (75dB): Superior noise rejection for sensitive analog/digital loads.
• Enable Control: On/off functionality via enable pin for power sequencing.
• Protection Features: Over-current and over-temperature safeguards.
• Low Quiescent Current (200 µA): Ideal for battery-powered applications.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.
• Wide Input Range (Up to 13V): Compatible with 12V automotive/industrial rails.

MC33375ST-5.0T3G Applications

• Automotive Electronics: Infotainment, sensors, and control modules requiring stable 5V rails.
• Industrial Systems: PLCs, instrumentation, and low-noise power supplies.
• Consumer Electronics: Portable devices, IoT nodes, and battery-backed circuits.
• Embedded Systems: Microcontroller power regulation in space-constrained designs.
• Medical Devices: Precision analog circuits where noise immunity is critical.

Conclusion of MC33375ST-5.0T3G

The MC33375ST-5.0T3G stands out for its low dropout, high PSRR, and robust protection features, making it a reliable choice for demanding environments. While marked obsolete, its performance remains competitive for legacy designs or inventory-based projects. Its balance of efficiency, noise suppression, and compact packaging suits applications from automotive to portable electronics, particularly where 5V regulation with minimal headroom is essential. Engineers should verify alternative active models for new designs but can leverage this regulator’s proven performance in existing systems.