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36V DC-DC converter integrates controller and coil

36V DC-DC converter integrates controller and coil

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By Nick Flaherty



Torex Semiconductor has launched a 36V, 600mA step-down DC-DC converter with an integrated control IC and coil to simplify the board layout and minimise noise

The input voltage range of the XCL230/XCL231 Series is 3.0 to 36V, the switching frequency is 1.2MHz, and a synchronous rectification circuit is used to achieve a stable power supply at high efficiency. The device comes in a 3.0×3.0X1.6mm DFN3030-10B package.

The XCL230 DC-DC converter Series fixes the operation frequency using PWM control to suppress output ripple voltage, while the XCL231 Series automatically switches between PWM and PFM control to reduce loss by lowering the operation frequency during low loads to achieve high efficiency across the entire range from low to high loads.

A 0.75V standard voltage supply is built in, and the output voltage can be set to 1.0V to 5.0V using an external resistance. The soft start time is internally set to 2.0ms, and a time that is longer than the internal soft-start can be freely set depending on the resistance and capacity connected to the EN/SS pin. An over-current protection function and thermal shutdown function are built in as protective functions to ensure safe use in the event of a short circuit.

www.torexsemi.com

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