ON Semiconductor MC33762DM-3030R2: Ultra-Low Noise, High PSRR Linear Regulator

The MC33762DM-3030R2 from ON Semiconductor is a highly efficient linear voltage regulator designed to deliver exceptional performance for noise-sensitive applications. This advanced component is an ideal solution for powering precision analog circuits, RF systems, and other applications where a stable and clean power supply is critical.

Key Features

• Ultra-Low Output Noise: The MC33762DM-3030R2 boasts an ultra-low output noise level of just 13.2 µVRMS over a 10 Hz to 100 kHz bandwidth, making it one of the best choices for applications demanding minimal interference and noise.
• High Power Supply Rejection Ratio (PSRR): With a high PSRR of 70 dB at 1 kHz, this regulator effectively suppresses variations in the input voltage, ensuring a consistent and reliable output.
• Wide Input Voltage Range: The device can operate with an input voltage range from 4.5 V to 20 V, providing flexibility in various system designs and ensuring compatibility with a broad range of input sources.
• Fixed Output Voltage: This particular model offers a fixed output voltage of 3.0 V, suitable for a wide array of low-voltage applications.
• Thermal Protection: It includes thermal shutdown protection, safeguarding the device from potential damage due to overheating.
• Current Limit Protection: The built-in current limit protection prevents excessive current draw that could otherwise harm the regulator or the powered device.
• Small Package Size: The compact DFN-8 package (3 mm x 3 mm) allows for a minimal footprint on the PCB, making it ideal for space-constrained applications.

Applications

The MC33762DM-3030R2 is particularly suited for powering high-precision analog circuits such as ADCs, DACs, and audio amplifiers, where a noise-free power supply is crucial. It is also an excellent choice for RF applications, including wireless communication devices, where a clean power source can significantly enhance performance by reducing signal interference. Additionally, its high PSRR and low noise characteristics make it a preferred choice for sensitive instrumentation and medical equipment that require a stable and interference-free power supply.

With its combination of low noise, high PSRR, and robust protection features, the MC33762DM-3030R2 from ON Semiconductor is a top-tier power management solution for designers looking to optimize the performance and reliability of their sensitive electronic systems.