Infineon BSC034N03LSG: A 30V Logic Level MOSFET for High-Efficiency Power Management

In the realm of modern electronics, achieving high efficiency in power management is a critical design objective. The Infineon BSC034N03LSG stands out as a pivotal component engineered specifically to meet this challenge. This logic-level N-channel MOSFET is designed to operate with low gate drive voltage, typically as low as 4.5V, making it an ideal choice for applications controlled directly by microcontrollers (MCUs), FPGAs, and other digital logic circuits without the need for an intermediate driver stage.

Built on Infineon's advanced OptiMOS™ technology, this 30V MOSFET is a benchmark for performance. Its most defining characteristic is its exceptionally low on-state resistance (RDS(on)) of just 3.4 mΩ max at a 10V gate drive. This ultra-low resistance is the key to minimizing conduction losses, which directly translates into higher system efficiency, reduced heat generation, and the potential for more compact designs by requiring less heatsinking.

The device's logic-level compatibility ensures robust performance even when driven by the lower output voltages of modern digital ICs. This capability is crucial for battery-powered and portable devices where every volt and every milliamp counts. By enabling direct drive from a microcontroller's GPIO pin, it simplifies circuit design, reduces component count, and lowers the overall bill of materials (BOM) cost.

Furthermore, the BSC034N03LSG boasts a high current handling capability, supporting continuous drain current (ID) up to 40A. This, combined with its low RDS(on), makes it exceptionally suited for demanding switching applications such as:

DC-DC converters (including synchronous buck and boost topologies)

Motor control circuits in consumer and industrial equipment

Load switching and power distribution systems

Battery management systems (BMS) and protection circuits

Its excellent switching performance also ensures low switching losses, which is vital for high-frequency power conversion circuits aiming for peak efficiency across a wide load range. The device is offered in the space-saving, thermally efficient PG-TSDSON-8 (SuperSO8) package, which offers a superior footprint-to-performance ratio.

ICGOOFind: The Infineon BSC034N03LSG is a superior logic-level MOSFET that delivers a powerful combination of ultra-low RDS(on), high current capability, and compatibility with low-voltage control signals. It is an optimal solution for designers striving to maximize power efficiency, reduce power losses, and create compact, reliable power management systems in a wide array of applications.

Keywords: Logic-Level MOSFET, Low RDS(on), High-Efficiency Power Management, OptiMOS™ Technology, Synchronous Rectification.