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The PWD0315-221M0T is designed to deliver stable high inductance energy storage in ultra compact buck and boost converters where low ripple current and smooth output regulation are required. Its open magnetic circuit structure enables cost efficient manufacturing while maintaining predictable inductance behavior under DC bias. The low profile 3.3 × 3.0 mm footprint supports dense PCB integration in notebook electronics, display power modules, embedded control systems, consumer devices, and miniature power rails operating in space constrained layouts.