**LT8361EMSE#TRPBF: A High-Performance Boost/SEPIC/Inverting Converter for Demanding Power Applications**

The demand for flexible and efficient power management solutions continues to grow across industries such as automotive, industrial, telecommunications, and medical electronics. Meeting these demands requires converters that not only deliver high performance but also offer topological versatility to handle diverse voltage requirements. The **LT8361EMSE#TRPBF** from Analog Devices is a current mode step-up DC/DC converter that excels in this exact role, providing exceptional capability in boost, SEPIC, and inverting configurations.

A key strength of the LT8361 is its **wide input voltage range of 2.8V to 60V**, making it exceptionally robust for environments prone to high voltage transients, such as in automotive systems. This wide operating range allows designers to use a single IC for a multitude of applications, from low-voltage battery-powered devices to systems connected to industrial power rails.

The converter integrates a **high-efficiency 2A, 100V power switch**, which is fundamental to its performance. This internal switch minimizes external component count, saves board space, and simplifies design while enabling output voltages exceeding 100V. Its current mode architecture ensures excellent line and load regulation, providing stable performance even under dynamic operating conditions. Furthermore, its switching frequency is programmable from 200kHz to 2MHz, allowing designers to optimize for efficiency or component size and avoid critical noise-sensitive bands.

The **LT8361's unique capability to operate in SEPIC (Single-Ended Primary Inductance Converter) and inverting topologies** provides exceptional design flexibility. A SEPIC configuration allows the output voltage to be either above or below the input voltage, which is ideal for battery applications where the input voltage varies but a regulated output is required. Meanwhile, the inverting mode can efficiently generate negative voltages from a positive input, a common requirement for operational amplifiers, sensors, and display technologies.

To enhance system reliability, the IC is equipped with comprehensive protection features, including **programmable soft-start to manage inrush current and frequency foldback for safeguarding during short-circuit conditions**. Its MSOP-10 exposed pad package offers excellent thermal performance, which is critical for maintaining reliability in high-power applications.

**ICGOOODFIND:** The LT8361EMSE#TRPBF stands out as a highly versatile and robust monolithic converter. Its unique combination of a wide operating range, integrated switch, multi-topology support, and robust protection features makes it an superior choice for engineers designing power supplies for the most demanding applications.

**Keywords:** High Voltage Conversion, Multi-Topology DC/DC, Wide Input Range, Integrated Power Switch, Current Mode Control.