48-V constant on-time synchronous step-down converter is first for automotive, industrial apps

The 650-mA LM25017, 300-mA LM25018, and 100-mA LM25019 synchronous buck regulators with integrated high-side and low-side MOSFETs for single- and multi-output power supplies feature constant on-time (COT) control architecture that reduces board space by up to 40% when compared with traditional designs that require multiple dc/dc converters. They are suitable for automotive and industrial systems.

These parts enable non-isolated voltage regulators and multi-output solutions from input voltages as high as 48 V. Each Fly-Buck converter can be configured to provide positive and negative voltage rails, or isolated multiple outputs with excellent cross-regulation. Used in conjunction with TI's WEBENCH online design tool, the Fly-Buck converters simplify and speed high-voltage DC/DC designs in industrial and automotive systems.  They are housed in thermally-enhanced 8-pin LLP and PSOP packages. (ea/1,000, LM25017, $1.25; LM25018, $1.12,  LM25019, $1.00 – available now)