**LTM4623IY#PBF: A High-Performance 13A Step-Down µModule Regulator with Advanced Thermal Management**

In the demanding world of power electronics, achieving high efficiency and power density while managing thermal performance is a constant challenge. The **LTM4623IY#PBF** from Analog Devices represents a significant leap forward, addressing these core issues with an integrated, system-in-package (SiP) approach. This device is not merely a DC/DC converter; it is a complete **13A step-down µModule regulator** that encapsulates the power train, inductors, and support components within a compact 15mm x 15mm x 4.41mm BGA package.

The defining feature of the LTM4623IY#PBF is its **advanced thermal management** capability. Unlike conventional regulators where heat from the inductor and silicon can create complex thermal challenges, this µModule is engineered to efficiently dissipate heat from both its MOSFET die and the integrated inductor. This is achieved through a sophisticated package design that allows heat to escape from the top side, making it highly compatible with external heat sinks and system airflow. This results in a superior thermal profile, enabling sustained full-load operation without derating in a wide range of ambient conditions.

Performance is paramount, and the LTM4623IY#PBF delivers. It operates over a wide input voltage range of 4.5V to 20V, making it suitable for a vast array of applications from intermediate bus conversion to point-of-load (POL) regulation in advanced FPGAs, ASICs, and processors. Its output voltage is programmable from 0.6V to 5.5V with ±1.5% maximum DC error over line, load, and temperature. The module incorporates fast switching MOSFETs and a high-frequency synchronous DC/DC controller, achieving peak efficiencies **exceeding 90%**. This high efficiency, combined with its thermal prowess, allows designers to push power density boundaries without compromising reliability.

Furthermore, the module includes features for robust and flexible operation. It offers programmable switching frequency, power-good indicator, output voltage tracking, and soft-start capabilities. Its current mode architecture ensures excellent transient response and stability. The built-in protection features, including over-current and over-temperature protection, safeguard both the module and the load it powers.

**ICGOOFind:** The LTM4623IY#PBF µModule regulator stands out as a premier solution for high-current, space-constrained applications. Its system-level integration eliminates the guesswork from layout and magnetics design, significantly reducing time-to-market. Most importantly, its **breakthrough thermal management** ensures high reliability and performance in the most demanding environments, making it an ideal choice for next-generation computing, telecommunications, and industrial equipment.

**Keywords:** µModule Regulator, Advanced Thermal Management, High Power Density, 13A Step-Down Converter, System-in-Package (SiP)