LP2985AIM5-4.5

The LP2985AIM5-4.5 is a three-terminal low-dropout linear voltage regulator with a 150 mA drive capability, designed for a wide range of applications. It is a versatile power management tool for on-board supply regulation. The device can operate from input voltages up to 36V and provides excellent regulation accuracy and flexibility with low quiescent current and very low dropout voltage. This makes it an ideal solution for applications requiring very high efficiency and low power dissipation.

The LP2985AIM5-4.5 can be used in various applications, ranging from portable systems and industrial power supplies to automotive power systems. It has built-in shutdown control, soft-start, and thermal shutdown capabilities. Because it is a low dropout regulator, it has the ability to provide a steady output voltage even when input voltage drops. It is particularly suitable for situations where the output voltage needs to be kept constant as the input voltage fluctuates.

The working principle of the LP2985AIM5-4.5 is relatively simple. When the input voltage rises above the reference voltage, current flows through the pass transistor, transferring power to the output. This increases the output voltage until the pass transistor stops conducting and the output voltage reaches the desired level. The output voltage is regulated by adjusting the reference voltage. If the input voltage drops below the reference voltage, the pass transistor turns off, stopping the current flow and maintaining the output voltage.

The LP2985AIM5-4.5 has low quiescent current and low dropout voltage, making it suitable for a wide range of applications. Its 150 mA drive capability and excellent regulation accuracy make it an ideal choice for automotive, industrial, and portable system power management. The device offers flexibility, control and protection to ensure reliable, high performance operation.