STMicroelectronics Buck Converter Surface Mount, 35V Output, 300 μA Current, 2.25W Power L5973D

STMicroelectronics L5973D Buck Converter is a compact, high-efficiency DC-DC switching regulator designed for stepped-down voltage applications. It features a 35V output voltage capability and delivers an output current of 300 μA with a power rating of 2.25W, making it suitable for low-power industrial electronic systems and embedded applications.

This surface mount device comes in an HSOP package, offering a low-profile form factor with dimensions of 5mm length, 4mm width, and 1.7mm depth, providing ease of integration into densely packed circuit boards. The monolithic switching regulator incorporates 8 pins to support efficient electrical connections and optimal circuit design flexibility.

The L5973D operates efficiently with typical efficiency of 90%, reducing thermal dissipation and improving energy utilization. Its robust temperature tolerance from -40°C to 150°C ensures reliable performance in harsh industrial and commercial environments. The device complies with JEDEC standards guaranteeing quality and consistency for professional applications.

Electrical characteristics include a minimum input voltage of 4V and a maximum input voltage of 36V, enabling it to work with a wide range of power inputs. The regulator provides excellent line regulation of 10 mV and load regulation of 15 mV to maintain a stable and precise output voltage under varying load and input conditions.

High efficiency of 90% for minimal power loss. Surface mount HSOP packaging for compact PCB layout. Wide temperature range from -40°C to 150°C for diverse environmental conditions. Compliance with JEDEC standards for reliability.

Low line and load voltage regulation ensuring output stability. Compatible with input voltages from 4V to 36V. 8-pin configuration supports flexible circuit design.

This Buck Converter is ideal for use in industrial automation systems, embedded electronics, instrumentation, power management circuits, and other electronic devices requiring stable step-down voltage conversion. Its high efficiency and compact footprint make it a preferred choice for power supply designs where space and thermal performance are critical.

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