Infineon’s latest OptiMOS 7 40V portfolio targets the exact pain point modern data centers, AI servers, and telecom designs face, squeezing higher power density out of increasingly tight board space.
Engineered specifically for high-frequency DC-DC conversion, these power MOSFETs comfortably support switching frequencies past 1 MHz in compatible topologies, making them a natural fit for both 48V intermediate bus converters (IBCs) and the low-voltage secondary stages of high-voltage 800V architectures.
What stands out here is how balanced the silicon is across key performance metrics. Infineon tuned the trade-offs between on-state resistance, output charge, and gate charge to tackle both conduction and switching overhead simultaneously.
Comparing the new source-down flagship (IQE010N04LM7CGSC) against its previous-gen OptiMOS 6 counterpart (IQE013N04LM6CGSC) highlights the generation jump:
- Max (at = 4.5V): Cut by up to 33%
- & Figures of Merit: Dropped by up to 35% each
Optimized for a 5V gate drive, they drop right into gate-drive ecosystems built for GaN, while maintaining a robust maximum junction temperature rating.
Layout-wise, Infineon offers strong thermal flexibility:
- 3.3 mm × 3.3 mm PQFN (Source-Down Center Gate): The IQE010N04LM7CG (overmolded) and IQE010N04LM7CGSC (dual-side cooling) both achieve a low max at = 10V.
- 5 mm × 6 mm PQFN (Drain-Down, Dual-Side Cooling):
- ISCH65N04LM7SC: max at 10V
- ISCH69N04LM7SC: max at 10V
- ISC011N04LM7SC: max at 10V
Leadership Comment
“With the OptiMOS 7 40 V, we give designers a MOSFET that cuts conduction and switching losses at the same time, so they can raise power density in the very limited space of an AI server,” said Richard Kuncic, Business Line Head Power Switches at Infineon. “It fits the secondary side of emerging 800 V DC architectures as well as today’s 48 V designs, which lets our customers move to the next architecture at their own pace.”
Availability
- The OptiMOS 7 40 V switching-optimized MOSFET portfolio is available and in mass production.
- Further information is available here.
- The application note provides application examples and detailed performance benchmarks.
