DC-DC Converter Market Size & Forecasts 2026-2035, By Segments (Form Factor, Input Voltage, Output Voltage, Output Power, Product Type, Isolation Working Voltage, End Use, Output Number), Growth Opportunities, Innovation Landscape, Regulatory Shifts, Strategic Regional Insights (U.S., Japan, China, South Korea, UK, Germany, France), and Competitive Dynamics (Texas Instruments, Analog Devices, Vicor, Infineon, ON Semiconductor)