The STMicroelectronics L6983i 10W isolated buck converter (iso-buck) ensures high efficiency and compact size – with advantages including low quiescent current and input voltage range of 3.5V-38V.
The L6983i is suitable for applications that require an isolated DC-DC converter. It implements an iso-buck topology, which uses fewer components than a conventional isolated flyback converter and requires no optocoupler, saving bill of materials costs and PCB space.
Other benefits of the L6983i include 2µA shutdown current and built-in functions such as adjustable soft start-up time, internal loop compensation and good power indicator, as well as overcurrent and thermal shutdown protection. The switchable spread spectrum feature improves EMC performance.
Capable of supplying/draining up to 4.5A of primary current, the L6983i allows the switching frequency to be adjusted from 200kHz to 1MHz and also to be synchronized externally. It can be used to power isolated gate drivers for IGBTs and silicon carbide (SiC) or gallium nitride (GaN) transistors, industrial automation, small traction systems and charging stations, and isolated safety equipment.
The evaluation board, STEVAL-L6983IV1, helps designers quickly explore the capabilities of the L6983i and accelerate time to market for new designs.
