LTC3831EGN#TRPBF

PMIC - Voltage Regulators - Special Purpose

The LTC3831EGN#TRPBF is a high voltage, low quiescent current multiple-output regulator with integrated FETs that is perfect for applications involving Power Management ICs (PMICs). It offers excellent performance in many different applications and working conditions, including high voltage and low current operation. The LTC3831EGN#TRPBF has a wide operating range, low output voltage noise, fast transient response, and programmable output voltage and current.

The general purpose of the LTC3831EGN#TRPBF is to provide regulated output voltages and current levels in applications such as PMICs, motor controls, and general power conditioning. It is designed to be used in a variety of applications, such as providing a constant voltage supply to a microcontroller, driving LEDs in LED lighting systems, and powering transistors in motor control applications. It can also be used to regulate voltages for more complex applications such as ADC power, LCD backlighting, and other specialized applications.

Application Field

The LTC3831EGN#TRPBF is well-suited for a variety of applications that require multiple outputs and excellent voltage regulation. It is particularly well-suited for use in power management ICs that require high current supplies, as well as for providing a controlled environment for transistors used in motor control. It can also be used to provide a regulated voltage supply to an ADC, a microcontroller, or a microprocessor, or to power a wide range of other components in a custom power system.

The wide operating range of the LTC3831EGn#TRPBF makes it suitable for applications in battery powered systems or in applications that require high efficiency and low noise. Its low quiescent current also makes it particularly well-suited for applications where low power consumption is a must have, such as in medical and energy harvesting applications.

Working Principle

The LTC3831EGN#TRPBF is a current-mode voltage regulator, meaning that it uses the principles of current rather than voltage to control the output. In a current-mode voltage regulator, the output voltage is determined by the amount of current supplied to the device. The amount of current that is supplied to the device is dependent on the input voltage and the load current, which is based on the output voltage.

The LTC3831EGN#TRPBF has two operational modes, one for high current operation and one for low current operation. In high current operation, the output voltage is controlled by the regulation integrated circuit (RIC). The RIC adjusts the duty cycle of the power switches to maintain a stabilized output voltage when the input voltage, load or temperature changes. In low current operation, the output voltage is controlled by a bandgap reference to maintain a constant value.

The LTC3831EGN#TRPBF offers programmable output voltage and current, allowing the system designer to tailor the output voltage and current to the application requirements. The outputs are also protected against over-voltage and over-temperature conditions to ensure system stability. Additionally, the device features an input cycling function to reduce the average current draw when the input voltage drops below a certain threshold.

The LTC3831EGN#TRPBF is an excellent choice for applications that require multiple output voltage and current levels and excellent voltage regulation. Its wide operating range and low quiescent current make it a great choice for low power applications, and the programmable output voltage and current make it suitable for a wide range of applications such as motor control, power management, and LCD backlighting.