LTC3809EDD#TRPBF

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

The LTC3809EDD#TRPBF is application-specific integrated circuit (ASIC) that belongs to the category of PMIC (power management IC) voltage regulators, more specifically, DC-DC switching controllers. It is designed to adjust and monitor the output voltage of DC-DC buck converters, enabling control over n-channel MOSFETs or integrated switches of up to 3A, with a modest quiescent current of 100 μA. It also provides an analog voltage feedback to ensure that the output voltage remains consistent with the desired target.

The LTC3809EDD is a dedicated high performance, integrated control IC that includes many unique features. It provides stable switching with an adjustable soft-start, an adjustable current limit, built-in loop compensation so there is no need of external capacitors or inductors. It is also equipped with thermal and current-limit protection and fault detection circuitry that provides a robust design.

The LTC3809EDD’s high-gain adjustable loop enables fast load transient response and optimal efficiency. It is capable of providing up to 3A of output current with a wide output voltage range of 0.8V to 6V. The small size of the chip facilitates easier board routing and reduced power consumption. The IC supports both fixed-Frequency and Burst-Mode operation with an adjustable frequency from 0.6MHz to 6MHz.

The LTC3809EDD#TRPBF application field includes consumer electronics, mobile communications, portable devices, computer peripherals, and automotive applications. It is suitable for general purpose voltage regulation, post-regulator circuits in notebook computers, power supplies, and other applications. In addition, LTC3809EDD#TRPBF is able to control voltage in a wide range of applications including DC-DC converters, DC-DC battery-charging systems, and USB powered devices.

The working principle of the LTC3809EDD#TRPBF can be broken down into two parts. First, the device detects the output voltage and compares it to the pre-determined reference voltage. When the device detects a difference between the two, it uses Pulse Width Modulation (PWM) to adjust the power supply current and thus, the output voltage to match the reference voltage. Second, the adjustable loop, in conjunction with the current limit, is used to control the output voltage under load transients.

To sum up, the LTC3809EDD#TRPBF is a DC-DC Switching Controller belonging to the family of PMIC Voltage Regulators. It is designed to adjust and monitor the output voltage of DC-DC buck converters, enabling control over n-channel MOSFETs or integrated switches of up to 3A. It provides excellent performance in applications such as consumer electronics, mobile communications, computer peripherals, and automotive applications. Its working principle consists of detecting the output voltage and comparing it to the pre-determined reference voltage, followed by the application of Pulse Width Modulation. Additionally, the adjustable loop, in combination with the current limit, controls the output voltage under load transients.

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