LT3758MPMSE#TRA1PBF

LT3758MPMSE#TRA1PBF Application Field and Working Principle

LT3758MPMSETRA1PBF is a type of DC to DC switching controller, an integrated power-management IC (PMIC) and voltage regulator, that is designed to simplify flyback power-conversion designs at optimized efficiency and low system cost. Using an intelligent time-based peak current-mode control scheme with internal loop compensation and full power-stage diagnostics, the device enables very simple and cost-effective designs that meet the needs of specific applications .

Application Fields

The LT3758MPMSE#TRA1PBF PMIC is suitable for a wide range of applications, including telecommunication systems, industrial systems, servers, embedded systems, set-top boxes, point-of-load applications, and many more. The device also features a robust and reliable protection scheme including overvoltage, output short-circuit, overcurrent and thermal protection.

Working Principle

The LT3758MPMSE#TRA1PBF device converts an input DC voltage of up to 45V to the desired output voltage without the need for loop compensation. It does so in a very efficient manner, utilizing a peak current-mode control scheme that is based on wattage regulation. The device monitors the output load current and adjusts the switching frequency, thus ensuring optimal control of the power-conversion process.

The internal oscillator of the device enables flexible switching frequency selection. It ranges from 250kHz to 2MHz, allowing excellent design flexibility and maximizing the efficiency of the power-conversion stage. The device supports an extensive range of power topologies including buck-derived, flyback and boost-mode topologies.

The device provides a full set of protection features including output overvoltage, output short circuit protection, current limit and thermal protection, increasing system reliability and protection. In addition, the device features an adjustable soft-start input that enables easily-configurable startup times.

LT3758MPMSE#TRA1PBF is an excellent choice for a wide range of power-conversion designs, offering optimum flexibility, robust protection, and excellent performance. Its inherent versatility, coupled with the simplicity of its configuration, provides the perfect solution for many applications.