ON Semiconductor MC33761SNT1-028G - Ultra-Low Noise, High PSRR LDO Regulator

The ON Semiconductor MC33761SNT1-028G is a high-performance, ultra-low noise, low dropout voltage regulator designed for applications that demand minimal power supply noise and high power supply rejection ratio (PSRR). This device is ideal for powering noise-sensitive circuits such as RF applications, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and other high-fidelity audio and instrumentation equipment.

Key Features

• Ultra-Low Output Noise: The MC33761SNT1-028G provides an exceptionally low output noise of just 9 μVRMS (typical) over a 10 Hz to 100 kHz bandwidth, ensuring clean and stable voltage for sensitive circuits.
• High PSRR: With a high PSRR of 80 dB at 1 kHz, this LDO regulator significantly attenuates input voltage ripple and transient, maintaining a consistent output even in the presence of supply fluctuations.
• Low Dropout Voltage: The low dropout feature allows for efficient operation with a minimal difference between the input and output voltages, making it suitable for battery-operated devices.
• Adjustable Output Voltage: The output voltage is adjustable from 1.2 V to 6.0 V with the use of external resistors, providing design flexibility for various applications.
• Thermal Protection: The device includes thermal shutdown protection, safeguarding it from potential damage due to overheating.
• Wide Operating Temperature Range: The MC33761SNT1-028G operates over an industrial temperature range of -40°C to +125°C, making it suitable for harsh environments.

Applications

The ON Semiconductor MC33761SNT1-028G LDO regulator is versatile and can be used in a broad range of applications, including:

• Portable and battery-powered devices
• Wireless and RF systems
• Medical equipment
• Audio equipment
• Precision instrumentation
• Automotive electronics

With its combination of ultra-low noise performance, high PSRR, and wide operating temperature range, the MC33761SNT1-028G from ON Semiconductor is an excellent choice for any application where power supply noise can impact the performance and reliability of the system.