Analog Devices Inc. LTC3407EMSE-2 Dual-Channel, 1.5MHz Synchronous Step-Down Regulator

The LTC3407EMSE-2 is a high-performance, dual-channel synchronous step-down regulator from Analog Devices Inc., designed to provide efficient power management for portable and space-constrained applications. This compact, integrated circuit is engineered to deliver continuous output currents up to 600mA per channel while maintaining a constant frequency of 1.5MHz. With its high switching frequency, the LTC3407EMSE-2 allows for the use of small, low-cost capacitors and inductors, reducing the overall footprint and cost of the power supply design.

The device operates from an input voltage range of 2.5V to 5.5V, making it suitable for single-cell Li-Ion/Polymer, or multi-cell alkaline/NiMH applications. Each channel is capable of generating an adjustable output voltage as low as 0.6V, enabling it to power the latest generation of low-voltage digital ICs. The LTC3407EMSE-2's high efficiency is achieved through the use of low RDS(ON) internal switches and a constant-frequency, current-mode architecture, which provides fast transient response and excellent loop stability.

Additional features of the LTC3407EMSE-2 include independent shutdown and soft-start functions for each channel, which allow for sequencing and precise control over the power-up process. The device also offers over-temperature protection and is capable of automatic transitioning between Burst Mode operation at light loads and continuous mode at higher loads, optimizing efficiency across a wide range of operating conditions.

For design flexibility, the LTC3407EMSE-2 is housed in a compact 10-lead MSOP package with a thermally enhanced exposed pad. This package design ensures efficient thermal management, even under high power operation or in environments with limited airflow. The LTC3407EMSE-2 is an ideal choice for designers looking for a dual-channel regulator that combines small size, high performance, and ease of use for their power-constrained applications.

With its robust feature set and high level of integration, the LTC3407EMSE-2 from Analog Devices Inc. represents a superior solution for efficient, compact, and reliable power delivery in a variety of portable and space-limited electronic devices.