The ME6231C18M5G is a low-dropout (LDO) linear voltage regulator, which is a power-management integrated circuit (PMIC). This device is manufactured by Micro One and comes in a SOT-23-5 surface-mount package with ROHS-lea compliant construction. It operates over a wide input voltage range of 2.5V to 18V, and provides an accurate output voltage of 1.8V, while allowing a maximum output current of 500mA. The device is also designed with built-in current limit and thermal shutdown features, ensuring current and thermal safety in applications. Additionally, it offers very low-dropout voltage and low quiescent current, making it a highly efficient device. The ME6231C18M5G is suitable for use in a wide range of applications including wireless communications, handheld devices, computers, and consumer electronics.