DC/DC converter addresses always-on automotive needs

The LT8495 starts up from an input voltage range of 2.5 to 32V and, once running, operates from inputs of 1 to 60V, making it suitable for applications with input sources ranging from a single-cell Li-Ion to automotive. The LT8495 can be configured as either a boost, SEPIC or flyback converter. Its switching frequency is programmable via a single resistor between 250kHz and 1.5MHz, minimising external component sizes. The combination of a thermally enhanced TSSOP-20E package and tiny externals ensures a very compact footprint while reducing solution cost.

The LT8495’s internal, high efficiency 2A switch delivers efficiencies of up to 83% while operating in a SEPIC configuration. A unique design using dual supply pins (V_IN and BIAS) enables the device to operate from the most efficient supply, optimising efficiency over a wide range of conditions. The LT8495 can operate with input supply voltages up to 60V for SEPIC topologies and up to 32V, with ride-through protection in boost and flyback topologies. The reset and watchdog timeout periods are independently adjustable using external capacitors. Other features include an FMEA tolerant package, programmable soft-start and thermal shutdown protection.

The LT8495 is available in a thermally enhanced TSSOP-20 package, priced starting at $2.95 each for 1,000 piece quantities. Industrial temperature (-40 to +125°C) versions are also available. Both versions are in stock.