LMR14020SQDDARQ1

The LMR14020SQDDARQ1 is a quasi-resonant DC/DC controller designed for meeting the demands of consumer electronics, automotive, telecom, server, and other industrial applications. The device is ideal for low output power applications with tight performance and current requirements, such as voltage regulation and powering on/off of the core, peripherals, and standby loads. The LMR14020SQDDARQ1 integrates several advanced features to simplify the design of auto-transformer configuration, reduce external component count and cost, and improve system reliability.

The LMR14020SQDDARQ1 is a high-performance, integrated DC-DC converter consisting of a power boost controller, PWM generator, 3.2-MHz oscillator, integrated logic level FET, error amplifier, and current sense comparator. Additionally, it includes additional features such as undervoltage lockout (UVLO), cycle-by-cycle current limit, programmable soft start, programmable turn-on/standby, programmable soft-stop, and a selectable input voltage range. The LMR14020SQDDARQ1 can operate over a wide input voltage range of 4.5 V to 32 V and provide a typical output of 20 V at 0.5 A with a 1.5 W maximum power rating.

The LMR14020SQDDARQ1 is a flexible, energy-efficient DC/DC power solution that can be tailored to address a wide range of output power requirements. It is designed to operate in a quasi-resonant mode, which helps to eliminate switching losses and reduces the output voltage ripple while still maintaining high efficiency to save power and extend battery life. Additionally, the LMR14020SQDDARQ1 integrates several control features including cycle-by-cycle current limit, overvoltage protection, and adjustable soft start and soft stop for improved power supply design reliability and flexibility.

The LMR14020SQDDARQ1 provides multiple operating modes in order to cover a wide range of power requirements. Its operating modes include continuous conduction mode (CCM), discontinuous conduction mode (DCM), and quasi-resonant (QR) mode. The discrete PWM controller and the high-frequency oscillator integrated in the LMR14020SQDDARQ1 can efficiently operate the converter in all three modes while maintaining high efficiency. Additionally, the integrated logic level FET provides high-side/low-side control flexibility, reducing component count and cost.

The LMR14020SQDDARQ1 is an ideal DC/DC power solution for a variety of automotive, telecommunication, server, industrial, and consumer applications. Its wide input voltage range and integrated features make it an ideal replacement for linear regulators, offering improved system efficiency, lower cost, and reduced space requirement. The device features an adjustable soft start and soft stop to ensure transient performance, and can be programmed to provide optimal system performance. Additionally, its wide operating temperature range and extended run time make it suitable for various applications.