Online Store

Products

LakeSemi's product portfolio is built around the QST GaN platform — covering three layers: chip-level (GaN HEMTs, SiC, IGBTs, MOSFETs), co-packaged power ICs (LGMA family), and controllers (PFC, SR, motor driver, gate driver). The lineup below is organized into two top-level groups.

Power Devices & Modules

Power Devices & Modules View all ›

GaN HEMT DevicesLakeSemi GaN FETs

650V / 100V / 1200V GaN HEMTs based on the QST™ process platform, available in both enhancement-mode and cascode topologies. Low output capacitance and low gate charge push the switching frequency ceiling above 1 MHz — perfect for PFC, LLC and hard-switched flyback converters.

Explore

Gate DriversGate Drivers & Isolated Drivers

GaN-/IGBT-/SiC-specific half-bridge and low-side driver ICs with 5V/12V/15V input and built-in Miller clamp. Paired with digital isolators, they deliver 1 ns-level timing accuracy and robust negative-transient protection in industrial servos, PV-storage converters and UPS systems.

Explore

Silicon MOSFETsSilicon MOSFETs

LakeSemi silicon MOSFETs precisely control source-drain current via the gate voltage and offer industry-leading RDS(on) × Qg FOM in the 30V–250V range. Widely used in power amplifiers, voltage regulators, battery protection and switching circuits — cooler, faster and more durable systems.

Explore

IGBTsIGBTs

Insulated-gate bipolar transistors deliver high current density and short-circuit ruggedness in motor drives, induction heating and high-voltage power conversion. LakeSemi IGBTs combine low Vce(sat) with strong short-circuit protection for industrial inverters and welding power supplies.

Explore

Power Modules / IPMPower Modules & IPMs

Intelligent Power Modules (IPMs) integrate IGBT/MOSFET, gate driver, and under-voltage / over-current / over-temperature protection with built-in fault diagnostics. Coverage spans inverter home appliances, industrial servos, UPS and energy conversion systems. SiC hybrid modules excel in EV OBC and PV inverters.

Explore

Power & Driver Controllers

Active PFC · SR · Motor Driver · Gate Driver View all ›

QST GaN Combo Power IC LakeSemi Combo Power IC

The QR flyback controller and 650V GaN HEMT are co-packaged into a single chip, eliminating heatsinks and optocouplers — smaller BOM, lower EMI. With 100–200W output, end-to-end efficiency reaches 94%+. Ideal for high-end fast chargers, laptop adapters and home-appliance SMPS.

Explore

Active Power Factor Correction (PFC) Controllers

LakeSemi's active PFC controllers cover CCM, CRM and DCM operating modes with an adaptive mode-switching algorithm that keeps the converter at peak efficiency. Combined with 650V GaN HEMTs, the PFC stage can switch above 200 kHz and clear the 80 Plus Titanium threshold with margin.

Explore

Secondary-Side Synchronous Rectification (SR) Controllers

Secondary-side synchronous rectification controllers tailored for QR flyback, active-clamp flyback and LLC resonant topologies. The adaptive drive-timing shut-off algorithm squeezes an extra 1–2 efficiency points from the rectification stage — pairing perfectly with the LGMA family of co-packaged power ICs.

Explore

BLDC Motor Driver ICs

Single- and three-phase BLDC motor driver ICs with built-in FOC hardware acceleration and sensorless position estimation — eliminating external MCUs from BLDC designs. From home-appliance fans, power tools and industrial servos to robotic joints.

Explore

Brushed-DC Motor Driver ICs

Fully-integrated single- and dual-channel H-bridge brushed-DC motor driver ICs with built-in charge pump, current sensing and overcurrent/thermal protection. Minimal BOM, minimal design effort — power tools, automotive wipers, appliance fans and motorized valves made simple.

Explore