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The term PMIC (Power Management IC) gets thrown around a lot when discussing power. In my experience it could mean anything from a dual output power regulator, to a full featured device with a dozen outputs, reset controllers, GPIO and more.   So how do I know what I’m looking for and where to go for information? Well, the answer to that question isn’t always easy. It varies by manufacturer based on how they categorize these devices on their websites which sometimes makes it di ...
I'm reviewing a Gallium Nitrate step-down converter for Point of Load (PoL) high power conversion. This design is intended to deliver low voltage (0.5 - 1.5V) at a power hungry point of load. It can source 50A. With a switching frequency of 600 kHz, the footprint can stay small.   Part 1 gives a high-level overview of the design. The converter is interesting for more reasons than just being GaN. There are a few advanced switch-mode conversion patterns used in the evaluation kit. One ...