MIC5283YME: A 500mA Low-Dropout Linear Regulator Engineered for Modern Power Management

In the realm of power management, efficiency and control are paramount. The MIC5283YME stands out as a robust, high-performance solution, delivering a stable 500mA output current with minimal power loss. As a low-dropout (LDO) linear regulator, its primary advantage is its remarkably low dropout voltage, which allows it to maintain regulation even when the input voltage is only slightly higher than the output voltage. This characteristic is crucial for battery-powered applications, extending operational life by efficiently utilizing the available energy until the battery is nearly depleted.

A key feature of the MIC5283YME is its integrated enable circuit. This allows an external logic signal, typically from a microcontroller or system logic, to seamlessly turn the regulator on or off. This capability is indispensable for advanced power sequencing and for implementing power-saving modes in portable electronics, industrial devices, and networking equipment. By shutting down the regulator completely, the enable pin reduces the device's quiescent current to less than 1µA, virtually eliminating standby power consumption.

The device is designed for an input voltage range up to 16V and offers a fixed output voltage, with common values like 3.3V or 2.5V, providing a simple and reliable power rail. Its high Power Supply Rejection Ratio (PSRR) effectively filters out noise and ripple from the input supply, ensuring a clean and stable output voltage critical for noise-sensitive components like analog sensors and RF circuits. Furthermore, built-in protection features such as current limiting and thermal shutdown safeguard both the regulator and the load from damage under fault conditions. Housed in a space-efficient 8-pin MSOP package, the MIC5283YME is an ideal choice for compact, power-conscious designs.

ICGOOODFIND: The MIC5283YME is a highly efficient and compact 500mA LDO regulator, distinguished by its ultra-low dropout voltage and logic-controlled enable pin, making it a superior choice for optimizing power efficiency and management in space-constrained, battery-operated systems.

Keywords: Low-Dropout (LDO), Enable Circuit, 500mA Output Current, Power Supply Rejection Ratio (PSRR), Thermal Shutdown.