Linear Technology's LTM4619EV: A High-Performance DC/DC µModule

The LTM4619EV is a versatile and high-efficiency DC/DC µModule (micro module) designed by Linear Technology, a leader in the field of analog integrated circuits and power management. This compact, encapsulated product is a complete system-in-package (SiP) that includes a dual DC/DC regulator, inductors, MOSFETs, a DC/DC controller, and compensation circuitry. Its design is optimized to deliver a high level of performance with minimal external components, making it ideal for space-constrained applications.

With an operating input voltage range of 4.5V to 24V, the LTM4619EV is capable of providing two outputs that can be configured from 0.8V to 5V with an output current up to 4A for each channel. This flexibility makes it suitable for a wide range of applications, from simple point-of-load conversions to more complex, multi-rail systems in telecommunications, industrial, and medical equipment.

The LTM4619EV features high-efficiency operation with up to 95% efficiency, which helps to reduce power loss and improve system reliability. The module also includes a power good indicator, output overvoltage protection, and overcurrent protection, ensuring safe and stable operation even under adverse conditions.

One of the key advantages of the LTM4619EV is its ease of use. Its small footprint (15mm x 15mm x 4.32mm LGA package) and the inclusion of all necessary components within the module reduce the complexity of the design and accelerate the time to market for end products. Additionally, the module's design allows for a simple, single-resistor ratio-based output voltage tracking, which is beneficial for sequencing multiple rails in a system.

For thermal management, the LTM4619EV is designed with an internal temperature sensor and overtemperature protection. Its thermally enhanced package ensures that the device operates within its specified temperature range, maintaining performance and longevity.

In summary, the LTM4619EV from Linear Technology is a high-performance, easy-to-use DC/DC µModule that provides a compact and efficient power management solution for a diverse array of electronic devices and systems.