MIC5353YMT-TR: Powering Precision with Ultra-Low Noise Performance

In the realm of modern electronics, where sensitive analog circuits and high-resolution data converters coexist with digital noise sources, the demand for clean, stable power is paramount. The MIC5353YMT-TR from Microchip Technology stands out as a superior solution, an ultra-low noise LDO voltage regulator engineered specifically to meet the stringent requirements of noise-critical applications.

This high-performance regulator integrates advanced design with a minuscule 2mm x 2mm MLF® package, offering an impressive blend of miniaturization and power quality. Its core strength lies in its ability to deliver a pristine, stable output voltage with an exceptionally low output noise of just 12µVRMS (10Hz to 100kHz). This feature is absolutely critical for powering RF transceivers, precision sensors, audio codecs, and medical instrumentation, where any power supply noise can directly degrade signal integrity and overall system performance.

Beyond its ultra-quiet operation, the MIC5353YMT-TR boasts an excellent power supply rejection ratio (PSRR), exceeding 70dB at 1kHz. This high PSRR ensures that any ripple or noise present on the input voltage source is effectively blocked from reaching the regulated output, further insulating the load from power-related interference.

Despite its small stature, this LDO is capable of delivering up to 500mA of continuous output current with a minimal dropout voltage of only 110mV at 300mA. This efficiency makes it ideal for battery-powered devices, extending operational life by minimizing wasted energy. The device is stable with a small, space-saving 1µF ceramic output capacitor and includes essential protection features like current limit and thermal shutdown, safeguarding both the regulator and the downstream components.

ICGOOODFIND: The MIC5353YMT-TR is an exceptional component that masterfully combines ultra-low noise, high PSRR, and robust output capability in a microscale package. It is the definitive choice for designers who will not compromise on power quality in their most sensitive and advanced electronic systems.

Keywords: Ultra-Low Noise, LDO Voltage Regulator, High PSRR, 500mA Output, Miniature Package