ADP7104ARDZ-3.3-R7: Low Noise, CMOS Linear Regulator

The ADP7104ARDZ-3.3-R7 is a high-performance, CMOS linear regulator offering a low noise, low dropout voltage and high power supply rejection ratio (PSRR), making it an ideal choice for sensitive RF or analog circuitry. Manufactured by Analog Devices Inc., this regulator is capable of delivering up to 500 mA of output current while maintaining a low 140 µV RMS noise performance.

Designed with advanced technology, the ADP7104ARDZ-3.3-R7 operates at a fixed output voltage of 3.3V, providing a stable and reliable power source for a variety of applications. The device features an input voltage range from 3.3V to 20V, allowing for flexibility in different system designs and ensuring compatibility with a wide range of input sources.

The regulator's dropout voltage is impressively low at only 135 mV at 500 mA load, which enhances efficiency and allows operation closer to the input voltage. This characteristic is particularly beneficial in battery-operated devices where maximizing the usage of battery voltage is crucial.

Additionally, the ADP7104ARDZ-3.3-R7 boasts a high PSRR of 75 dB at 1 kHz, which significantly reduces the sensitivity to variations in the input voltage, ensuring a stable output even in the presence of noise on the power supply line. This feature is critical for applications that demand a clean voltage supply, such as precision instrumentation, medical devices, and high-end audio equipment.

The device is offered in a compact 8-lead SOIC package, denoted by the 'ARDZ' suffix, and is specified over the industrial temperature range of −40°C to +125°C. The 'R7' suffix indicates the product is available in a 7-inch reel, facilitating automated manufacturing processes.

For protection features, the ADP7104ARDZ-3.3-R7 includes overcurrent protection and thermal overload protection, which safeguard the device and the load from adverse conditions. This linear regulator also supports a low power shutdown mode, further enhancing its suitability for power-sensitive applications.

In summary, the ADP7104ARDZ-3.3-R7 from Analog Devices Inc. is a robust, high-performance linear regulator that offers an optimal blend of low noise performance and high efficiency, making it an excellent choice for a wide range of precision applications.