LT1587CM-3.3#PBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LT1587CM-3.3#PBF Application Field and Working Principle

The LT1587CM-3.3#PBF is a low-noise, low-dropout linear regulator manufactured by Linear Technology Corporation. It is a 3.3V voltage regulator capable of delivering up to 1A of current. The device is designed to provide a voltage supply that is highly accurate, stable, and free from noise while consuming very low quiescent current.

Application Field

The LT1587CM-3.3#PBF is ideal for low-noise, low-dropout linear regulation applications. It is suitable for powering analog and digital circuits, such as microcontrollers, D-A converters, mobile phones, and battery-powered equipment. When used as a pre-regulator in MPPT (maximum power point tracking) solar charge controllers, the regulator provides high accuracy and very low noise.

Working Principle

The LT1587CM-3.3#PBF voltage regulator employs a fully integrated, low-noise linear regulation design. It features a high gain, wide bandwidth internal error amplifier with a fast turn-off cycle. The device also utilizes fast-edge switching techniques to minimize power dissipation. The bias network within the circuit senses the output current and adjusts the control signal as required to maintain a constant output voltage.

The LT1587CM-3.3#PBF regulates the output through the feedback pin by comparing it with the reference voltage. It continuously monitors the feedback voltage and regulates the output voltage accordingly. The device is designed to operate in the presence of large input voltage variations while providing tight regulation throughout the operating range.

In order to increase the output current, the device utilizes a current-control loop. When the output current increases above a certain threshold, the control loop adjusts the on time of the internal transistors to reduce the output current. The LT1587CM-3.3#PBF also features a thermal shutdown circuit that turns off the device if the temperature exceeds a predetermined value.

Conclusion

The LT1587CM-3.3#PBF low-noise, low-dropout linear regulator from Linear Technology Corporation is an ideal solution for voltage regulation applications requiring low noise, low power consumption, and high accuracy. The device utilizes a high gain, wide bandwidth error amplifier, fast-edge switching techniques, and a current-control loop to regulate the output voltage. The device is highly suitable for powering analog and digital circuits, MPPT solar charge controllers, and other battery-powered equipment.

The specific data is subject to PDF, and the above content is for reference