COVER STORY
Exploring the benefits of system-in-package power modules
As products become more compact whilst at the same time demanding greater power density and efficiency, there is a real need for smaller and more integrated power management devices. Today’s FPGA- or processor-based systems often require an array of power management devices, the number of which increases with complexity of the application. Typical devices can include step-down and step-up regulators to decrease or increase voltages levels for dedicated parts of a system, through to dedicated devices for managing battery charging circuits. Whilst these devices themselves can be relatively small in themselves, by the time the necessary associated support circuitry has been added they can occupy significant portions of PCB real estate. There is also careful consideration needed during the design stage concerning suitable components and track layouts to ensure optimal performance, efficiency and EMI compliance to take into account. This is where the new breed of integrated power management devices can really add value to a design and reduce the time to market. In this month’s issue Nitin Chaudhary, field applications engineer at Anglia, will introduce the features and benefits of the lineup of integrated power modules from Analog Devices.
Introduction to µModule regulators Analog Devices’ µModule (micromodule) regulators and dc-to-dc power products are complete system- in-package (SiP) power management solutions with integrated dc-to-dc controllers, power transistors, input and output capacitors, compensation components, and inductors, all self- contained within a compact, surface- mount BGA or LGA package.
µModule power products
help designers simplify implementation, verification, and manufacturing of complex power circuits by integrating the power function in a compact moulded plastic package.
µModule system-in-package cross section
Compact form factor: The compact form factor of µModule power products, facilitated by high levels of integration and ultrathin package technology, makes them very well-suited for applications where space is limited, such as portable electronics, IoT devices, and industrial equipment. Despite their small size, these modules are able to deliver high power density with devices in the range featuring output currents up to 160A in a surface mount package, allowing designers to achieve high performance in a small footprint. Some devices allow paralleling of up to 12 outputs optimising power density even further.
Reliability: Analog Devices is renowned for its high- quality, this is a cornerstone of their business serving
10 March 2024 Components in Electronics
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The µModule power product portfolio supports a range of power management functions such as step-down (buck), step-down and step-up (buck-boost), battery charger, isolated converter, and LED drivers. Inverting regulators and regulators with integrated digital power system management (PSM) are also included. These highly integrated µModule solutions have PCB Gerber files available for every device; they address time and space constraints while delivering a high efficiency, reliable, and, with select products, a low EMI solution compliant with EN 55022 Class B standards.
Key benefits Integration: This is one of the most obvious benefits of µModule power products, because they integrate multiple power components into a single package, simplifying design and reducing the overall footprint of power management circuits. This integration also helps to minimize external component count and bill
of materials management while greatly simplifying board layout, thereby saving valuable PCB space and reducing overall system complexity.
By combining the high-performance power components and optimized control circuitry into the SiP, μModules also offer high efficiency levels. Efficiency and power consumption is one of the most crucial aspects for many applications: designers are being pushed not only to minimise wasted energy and reduce heat dissipation in high-power systems, but also to maximize battery life and run-time in portable devices.
Ease of design: Analog Devices’ µModule power products are designed to be easy to use, with many featuring plug-and-play functionality. This helps to simplify the design process, particularly for engineers with less extensive experience in power management design. Additionally, many µModule products come with evaluation boards, reference designs, and software tools to further streamline the design process and speed up time to market.
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