Step-down converter simplifies multi-output design
Texas Instruments has announced what is claimed to be the industry’s first 65V synchronous step-down converter that provides isolated bias supplies up to 15W – without the need for an optocoupler. The LM5160A converter features a constant on-time control that requires no loop compensation and supports high step-down ratios with fast transient response.
The LM5160A improves power density and addresses higher power needs more efficiently and reliably in industrial and automotive applications such as three-phase AC motor drives, PLCs, smart metering, renewable energy or grid infrastructure, factory automation, PoE IP cameras and EVs. Programmable soft start reduces in-rush currents when powering up into heavy loads or large capacitance, while internal ±1% voltage reference and VOUT error correction improve accuracy across line, load and temperature.
The innovative converter, which supports a wide-input voltage of 4.5-65V, can generate positive and negative bias-supply rails in non-isolated designs or single and multiple isolated outputs, while minimising solution size and simplifying the design compared to traditional flyback solutions. Used in conjunction with award-winning WEBENCH online design tools, the LM5160A speeds time to market of high-power DC/DC designs.
The LM5160A is available now in volume production, priced at $1.80 in 1,000 unit quantities.
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