Linear Voltage Regulators (LDO)

A linear voltage regulator (LDO) is a type of power management integrated circuit (IC) that is used to regulate the voltage of a power supply. An LDO typically consists of a voltage reference, an error amplifier, and a pass transistor. The voltage reference sets the output voltage of the LDO, while the error amplifier compares the output voltage to the reference and adjusts the pass transistor to maintain the output voltage at the desired level. LDOs are commonly used in portable electronic devices, such as smartphones and laptops, where they are used to regulate the voltage of the battery or other power source. They are also used in other applications, such as automotive electronics and industrial control systems, where a stable, low-noise power supply is required.