LTC3890MPUH#TRPBF

The LTC3890MP, part number UH#TRPBF, is a monolithic DC-DC switching controller designed for synchronous buck converters. This device serves as the controller for synchronous buck applications up to 20 A and is ideal for use in fast transient applications like DSPs and microprocessors. The LTC3890MP is also suitable for a variety of other applications such as distributed power systems, battery chargers, as well as active ORing and tracking applications. As a current mode controller, the LTC3890MP provides an easy and accurate way to regulate the output voltage.

The LTC3890MP is a high performance, easy to use DC-DC switching controller featuring a wide input voltage range (10 V to 60 V), fast transient response, excellent load and line regulation, and adjustable switching frequency. The device includes many features to simplify synchronization capability and to improve noise immunity, including an integrated precision high-side current sense with independent gain adjustment and adjustable cycle-by-cycle current limit with auto restart. An optional PWM dimming input is also included to support LED lighting applications.

The integrated high voltage buck regulator can be configured for a wide range of output voltage and current levels, making the LTC3890MP an ideal solution for advanced high current power systems. The output can be optimized for high efficiency over a wide range of load levels and input voltages. The device also includes several integrated safety features such as over voltage, over current and thermal shutdown.

The LTC3890MP is a highly efficient DC-DC switching controller with an integrated 3.3 V LDO to power digital logic. The device features a secondary feedback voltage loop, allowing it to precisely regulate output voltages up to 60 V. Slew rate control eliminates large output voltage overshoots during start-up and noise pulses during operation. The device includes an integrated differential remote sense circuit, which ensures accurate voltage control even over long wires and cables.

The LTC3890MP is an ideal choice for all types of DC-DC switching applications. Its combination of high performance and low cost allows designers to achieve maximum performance while still controlling costs. The device’s integrated safety features makes it an ideal choice for a wide range of applications, from distributed power systems to battery chargers and from active ORing and tracking applications to LED lighting.