STMicroelectronics L6983N33QTR - Power Management IC

The L6983N33QTR from STMicroelectronics is a high-efficiency, synchronous monolithic step-down regulator that is designed to meet the stringent power requirements of modern applications. This compact and versatile power management integrated circuit (PMIC) is capable of delivering up to 3 A of continuous output current with an input voltage range of 3.5 V to 38 V, making it suitable for a wide array of products from industrial to consumer electronics.

Its output voltage is fixed at 3.3 V, providing a stable and regulated supply for components requiring a 3.3 V input. The L6983N33QTR utilizes a peak current mode architecture with internal compensation, which simplifies the design and reduces external component count. This feature, combined with a switching frequency that can be programmed from 200 kHz to 2.2 MHz or synchronized to an external clock, allows for the use of small-sized surface mount inductors and capacitors, thereby minimizing the solution footprint and optimizing the power density.

The device boasts high efficiency, which not only prolongs battery life but also reduces the need for thermal management, thanks to its low R<sub>DS(on) internal switches. Additionally, the L6983N33QTR offers a range of features to protect your design, including overcurrent protection, thermal shutdown, and a power good flag that indicates when the output voltage is within regulation.

The L6983N33QTR comes in a 16-pin QFN package, which is known for its small size and excellent thermal performance. Its compact form factor is ideal for space-constrained applications. Moreover, it is designed to meet the rigorous standards of the automotive industry, as evidenced by its qualification under the AEC-Q100 standard, making it an excellent choice for automotive power supplies.

Whether you're designing a power supply for an automotive application, an IoT device, or a portable consumer electronic, the L6983N33QTR offers the performance, reliability, and flexibility needed to meet the demands of your power design.