LTC3890EUH-2#PBF - Dual Output Synchronous Step-Down DC/DC Controller

The LTC3890EUH-2#PBF is a robust, high-performance dual output synchronous step-down DC/DC controller designed by Linear Technology, now part of Analog Devices. This advanced power management integrated circuit (IC) is engineered to drive high current output stages with efficiency and precision, making it an ideal choice for a wide array of applications, including telecommunications, industrial systems, and automotive power supplies.

The device operates over a wide input voltage range of 4.5V to 60V, which enables it to manage a variety of power sources, from standard 12V or 24V rails to unregulated or fluctuating inputs. This wide input range, coupled with its ability to survive transients up to 100V, makes the LTC3890EUH-2#PBF exceptionally versatile and resilient in challenging environments.

Each of the two outputs can be independently set to a voltage ranging from 0.8V to 24V, providing the flexibility necessary to power different components within a system. The IC employs a constant-frequency, current mode architecture, which delivers stable operation over a wide range of supply and output voltages. Moreover, the LTC3890EUH-2#PBF features a phase-lockable frequency of up to 850kHz, allowing users to optimize the balance between efficiency and component size.

This controller ensures high efficiency with its low RDS(ON) integrated MOSFET drivers. Additionally, it offers selectable Burst Mode operation for improved efficiency at light loads, further extending battery life for portable applications. For applications demanding the lowest possible noise, the LTC3890EUH-2#PBF can be configured to run in pulse-skipping or forced continuous mode, minimizing ripple and potential interference.

The LTC3890EUH-2#PBF is housed in a 5mm x 5mm QFN package, which is designed to minimize footprint and allow for compact, thermally efficient layouts. It also includes a range of protective features such as overvoltage, overcurrent, and over-temperature protection, ensuring reliable performance under a variety of conditions.

With its combination of durability, flexibility, and high efficiency, the LTC3890EUH-2#PBF is an excellent choice for designers looking to create sophisticated power systems that require dual outputs with high reliability and performance.