MIC5504-3.3YM5-T5: Powering Modern Electronics with 300mA of Reliable Performance

In the world of modern electronics, stable and efficient power management is a non-negotiable requirement. The MIC5504-3.3YM5-T5, a 300mA low-dropout (LDO) voltage regulator, stands out as a critical component for a vast array of applications where space is limited and performance is paramount. This tiny yet robust regulator is engineered to deliver a fixed, clean 3.3V output from a higher input voltage, ensuring that sensitive circuits operate without interruption or noise-induced errors.

A key advantage of the MIC5504 is its remarkably low dropout voltage. With a dropout of just 210mV at 300mA, it can continue to regulate its output effectively even when the input voltage dips very close to the output level. This feature is invaluable in battery-powered devices, such as Bluetooth modules, handheld instruments, and IoT sensors, as it maximizes battery life by allowing the system to operate until the battery is nearly depleted.

Despite its small SOT-23-5 package, the MIC5504-3.3YM5-T5 is packed with features that enhance system reliability. It offers excellent line and load regulation, maintaining a stable output despite fluctuations in the input voltage or changes in the current drawn by the load. Furthermore, it incorporates vital protection mechanisms like current limiting and thermal shutdown, safeguarding both the regulator itself and the downstream components from potential damage due to fault conditions.

The inclusion of an active-high Enable (EN) pin provides designers with direct control over the regulator's operational state. This allows for sophisticated power sequencing in complex systems and facilitates a true shutdown mode, reducing the quiescent current to less than 1µA and virtually eliminating power drain when the device is not in active use.

ICGOODFIND Summary: The MIC5504-3.3YM5-T5 is an exemplary LDO regulator that combines high performance, robust protection, and ultra-low power consumption in a miniature footprint. It is an ideal solution for powering core logic and RF components in space-constrained, battery-sensitive portable applications.

Keywords:

Low-Dropout (LDO) Regulator

300mA Output Current

3.3V Fixed Output

Thermal Shutdown

Ultra-Low Quiescent Current