More Power Products at APEC 2025

Infineon is looking to meet the power challenges of data centers as artificial intelligence (AI) becomes more important and more power-hungry. Power modules are needed to support AI accelerators, FPGAs, and GPGPUs.

The latest offering is the OptiMOS TDM24545S quad power module. It's a small, high-frequency (up to 2 MHz) DC-DC converter optimized for operation between 500 kHz and 1.5 MHz. The module includes on-board decoupling capacitors.

There are four stages and a power inductor block that provide an independent pair of output rails with four phase synchronous buck converters. The 9- × 10- × by 5-mm package is optimized for heat transfer and PCB layout. It supports driver/MOSFET control timing with minimal switch node ringing.

The module supports IC temperature reporting, overtemperature protection, cycle-by-cycle overcurrent protection (OCP), control MOSFET short detection, and V_CC undervoltage protection.

Transient surge protection diodes are needed to protect electronic systems ranging from 48-V buses in hybrid electric vehicles to battery-management systems and chargers in EVs. Industrial and avionic applications are other application areas.  

Taiwan Semiconductor (TSMC) introduced the SUPER CLAMP Snapback transient voltage suppressor (TVS)  LTD7S24CAH, a 7,700-W, 24-V, bidirectional, TVS diode that meets AEC-Q101 automotive qualification and the ISO 7637 electromagnetic compatibility vehicle standard. They have a 1.0 to 1.05 clamping ratio between their breakdown and clamping voltage. The bidirectional aspect allows for AC and DC designs.

The diode’s lower clamping voltage offers protection at a much higher peak pulse current versus conventional TVS diodes. This enables the use of less costly components with a lower-working-voltage to meet design requirements.

Sam Wang, vice president at TSMC Products, notes “Our new SUPER CLAMP advanced snapback TVS devices offer a superior approach to using conventional TVS devices when designers need to reduce system bus transient voltage stress. Thanks to their exceptional protection characteristics, they also help them avoid overdesign—which can cut system costs.”

The diodes, which come in a DO-218AB-package, are rated for –55 to 175°C. They're RoHS compliant and halogen-free.

TDK’s FS1606 DC-DC micro point-of-load (microPOL/μPOL) module is designed to support high-power-density applications such as power support for FPGAs and AI accelerators. The modules have a power density of 1 W/mm³. Multiple modules can be connected in parallel to deliver more current.

The compact, 3.3- × 3.3- × 1.35-mm devices can deliver up to 6 A. There are fixed 3.3- and 5.0-V versions plus variable versions supporting 0.6 to 5.0 V. The module design minimizes parasitic inductance by incorporating the inductor and passives, including boot and V_CC capacitors, into the module. This also helps minimize resistance and inductance to deliver faster response times and more accurate regulation when dealing with dynamic load currents.

The FS1606 series supports full telemetry using an I²C interface. It includes voltage and current readings as well as access to the temperature sensor.

The module’s operating range is –40 to 125°C. It can be air-cooled up to 30 W. The modules, which target industrial applications, are lead-free and ROHS compliant.