Texas Instruments

UA78M05IDCY

UA78M05IDCY Description

The UA78M05IDCY from Texas Instruments is a fixed 5V linear voltage regulator designed for surface-mount applications, delivering a reliable 500mA output current. With a wide input voltage range up to 25V, this regulator ensures stable power delivery while maintaining low dropout voltage (2V max at 350mA). It features high PSRR (80dB at 120Hz), making it suitable for noise-sensitive circuits. Packaged in a SOT-223-4 form factor, it is optimized for compact designs while offering robust over-current, over-temperature, and short-circuit protection. Compliant with RoHS3 and REACH, it is ideal for industrial, automotive, and consumer electronics.

UA78M05IDCY Features

• Fixed 5V Output: Ensures precise voltage regulation for 5V-dependent circuits.
• High Current Capability: Delivers 500mA continuous current, suitable for moderate-power applications.
• Low Dropout Voltage: 2V max at 350mA enhances efficiency in low-input scenarios.
• Robust Protection: Includes over-current, over-temperature, and short-circuit safeguards for reliability.
• High PSRR (80dB): Minimizes ripple in noisy environments, ideal for analog/digital systems.
• Wide Input Range (Up to 25V): Supports diverse power sources, including unregulated supplies.
• Surface-Mount (SOT-223-4): Compact footprint for space-constrained PCB designs.
• Industrial Compliance: RoHS3, REACH, and ECCN EAR99 certified for global use.

UA78M05IDCY Applications

• Embedded Systems: Powering microcontrollers, sensors, and low-power peripherals.
• Automotive Electronics: Stable voltage supply for infotainment, ECUs, and lighting systems.
• Industrial Controls: Reliable regulation in PLCs, motor drivers, and instrumentation.
• Consumer Devices: Used in set-top boxes, routers, and portable electronics.
• Noise-Sensitive Analog Circuits: Benefits from high PSRR in audio amplifiers and data converters.

Conclusion of UA78M05IDCY

The UA78M05IDCY stands out as a high-performance, compact linear regulator with exceptional PSRR and protection features. Its 500mA output, wide input range, and robust design make it a versatile choice for industrial, automotive, and consumer applications. Compared to similar models, it offers better thermal performance in surface-mount packages and superior noise rejection, ensuring stable operation in demanding environments. For engineers seeking a reliable, space-efficient 5V regulator, this TI component delivers durability, efficiency, and compliance in a single solution.