LTC3615MPUF#TRPBF

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The LTC3615MPUF#TRPBF is a power management integrated circuit (PMIC) for voltage regulators, specifically for DC-DC switching regulators. It is designed to decrease the size and complexity of a power supply design which helps reduce costs, simplify designs, and enable equipment to offer improved performance and more features.

Power Supply Component Requirement

The LTC3615MPUF#TRPBF is designed to be used as the front-end power regulator of the power supply system. It supports both isolated and non-isolated AC/DC power supply architectures, providing the ideal power solution for a broad range of applications. The device features a high input voltage regulator, a low drop-out regulator, a controller, and a synchronous buck switching regulator.

Feature Overview for LTC3615MPUF#TRPBF

The device includes a wide range of features that help reduce system parts count and ensure reliable operation. The LTC3615MPUF#TRPBF has a synchronous buck switching regulator that provides a high-efficiency solution for low output voltage applications. It also includes an adjustable current limit and over temperature protection, reducing the risk of system damage due to overload or overheating. It also incorporates a PMBus interface to enable control and monitoring through the serial communication port.

Design Specifications

The device can operate over a wide range of supply voltages, from 3.3V to 36V, providing output currents up to 4A. It has an excellent load regulation performance with a maximum output ripple of 70 mV. Its performance is optimized to provide high-efficiency over the entire input voltage range and is capable of delivering up to 90% efficiency.

Working Principle of LTC3615MPUF#TRPBF

The LTC3615MPUF#TRPBF is a switching regulator that operates in a pulse-width modulation (PWM) mode. The output voltage is regulated by varying the duty cycle of the switching pulses in response to changes in the output load. The device has an adjustable internal oscillator that controls the switching frequency and is capable of operating at frequencies up to 2MHz. A soft-start circuit ramping up the output voltage to the nominal operating level helps reduce inrush current and enables load sharing with multiple supplies.

Applications of LTC3615MPUF#TRPBF

The device is well-suited for applications such as automotive, medical, industrial, and consumer electronics. The high integration, small size, and user-configurable features make it an ideal solution for a variety of power management applications. Examples of applications the device can support include powering various microcontroller units, LCD and LED displays, digital radio receivers, automotive lighting systems, and portable medical equipment.

Conclusion

The LTC3615MPUF#TRPBF is an innovative PMIC power management integrated circuit for voltage regulators, specifically for DC-DC switching regulators. It provides great performance and feature set, enabling designers to create reliable and flexible power solutions for a wide range of applications. It is integrated with a high input voltage regulator, a low drop-out regulator, a controller, and a synchronous buck switching regulator, allowing for a single-stage power solution that eliminates the need for extra components. The device is designed to reduce system cost and simplify designs while improving performance and features, making it an ideal choice for a wide range of applications.

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