LM2990S-15

The LM2990S-15 is a type of linear voltage regulator from the Precision Monolithic ICO Integrated Circuits (PMIC, or PMICO) family. It is a 3-terminal device that provides precise voltage regulation, and is intended for a wide variety of uses, ranging from computer applications to power supplies, and a number of other in-circuit applications.

The LM2990 operates with a power input between 3V and 35V, and can provide an output voltage range of 1.5V to 22V. It features a wide voltage range in order to provide stability even when operating in fluctuating voltages. The LM2990 has a high output current of up to 3A, making it an ideal choice for power supply and current control applications that require plenty of current.

The LM2990S-15 also has a low minimum operating current, making it perfect for low-power applications that require precise voltage regulation and precision current control. It also has a wide operating temperature range, which makes it suitable for a variety of operations and settings in which standard linear voltage regulators may not be suitable. This wide operating temperature range allows the device to provide reliable performance, even in harsh or extreme environments.

The LM2990S-15 is designed with built-in protection features that help protect it from potential damage from over-current, over-voltage and over-temperature. It also has an open-drain, logic-controlled shutdown feature that prevents output loading when the device is in shutdown mode. This ensures it will not draw excessive current, and lowers power consumption when the device is not actively providing output power.

As for its working principle, the LM2990S-15 is based on a three-terminal voltage regulator. It uses a reference voltage that is compared to an error amplifier. The error amplifier is the input voltage, while the output voltage is calculated by the regulator according to the reference voltage and error amplifier output. The output voltage can be adjusted by controlling the reference voltage. The device also includes a current limiter, which prevents current overloads when the output voltage exceeds a predetermined maximum value.

Overall, the LM2990S-15 is an ideal choice for applications that require precise voltage regulation and precision current control. Its wide voltage range and high output current make it suitable for a number of applications, and its protection features keep it safe against external interferences. Its wide operating temperature range ensures it can be used in a variety of different settings and with confidence.