LTC3890EGN-1 Dual DC/DC Controller from Linear Technology

The LTC3890EGN-1 is a robust dual output synchronous step-down DC/DC controller that provides high efficiency power conversion for a wide range of applications. Manufactured by Linear Technology, now part of Analog Devices, this controller is designed to drive external MOSFETs for high current applications. Its versatile design and powerful features make it ideal for use in telecommunications, industrial systems, and automotive power systems.

The device operates over a wide input voltage range from 4.5V to 60V, making it suitable for use in systems with varying supply voltages, including those powered by automotive batteries, industrial supplies, or standard 12V, 24V, and 48V rails. The LTC3890EGN-1 ensures reliable operation even under harsh conditions, contributing to the robustness required in demanding environments.

One of the key features of the LTC3890EGN-1 is its constant frequency current mode architecture, which provides excellent line and load transient response. The device can also be configured for burst mode operation, which significantly improves efficiency at low output currents and reduces standby power consumption. This makes the LTC3890EGN-1 an energy-efficient solution for systems that require both high power operation and low power standby modes.

In addition to its high performance, the LTC3890EGN-1 offers a range of protective features to ensure the longevity and safety of the power system. These include overvoltage protection, overcurrent protection, and thermal shutdown. The device also features a tracking function that allows for the smooth sequencing of outputs, which is essential in systems with multiple supply voltages.

The LTC3890EGN-1 is available in a 28-lead SSOP package, which is designed for space-constrained applications while still providing adequate thermal performance. The device's compact size, combined with its powerful features, make it an excellent choice for designers looking to create efficient, reliable, and compact power systems.

Overall, the LTC3890EGN-1 from Linear Technology is a high-performance solution for modern power management challenges, delivering precision, efficiency, and reliability in a compact form factor.