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Torex debuts 30V, 2A Stepdown DC/DC converter

Posted: 28 Jun 2013 ?? ?Print Version ?Bookmark and Share

Keywords:Torex Semiconductor? converter? industrial equipment? PWM control?

Torex Semiconductor recently unveiled its XC9250/XC9251 series of 30V, 2A step-down DC/DC converters. The company's latest offering is a high breakdown voltage DC/DC converter with 30V operation, 2A output, and an internal driver Tr.

With an input voltage of up to 30V, input rating of 36V, peak voltage of 46V for 400ms and an operating ambient temperature range of -40C to 105C, Torex's latest series of step-down DC/DC converters are designed for a wide range of in-vehicle applications and industrial equipment applications. A 0.8V reference voltage source is incorporated and the output voltage can be set within a range of 1.2V to 12.0V using external resistors (RFB1, RFB2). 300kHz or 500kHz can be selected for the switching frequency. By synchronising to an external clock, the generation of unwanted noise can be suppressed.

Control methods are PWM control (XC9250 series) and PFM/PWM auto switching control (XC9251 series). The soft start time can be set as desired by adding an external capacitor to the SS pin. For the current limiting function, either latch type or auto recovery type can be selected. In addition to the current limiting function, a thermal shutdown circuit is incorporated to enable safer circuit design. A SOP-8FD package is used and greater integration of the power components is achieved. In addition, a high-side driver is incorporated so that fewer peripheral components are needed, making it possible to reduce the mounting area.

This series is an environment-friendly product that complies with the EU RoHS Directive and is Pb-free.

Further information on the XC9250/XC9251 series can be found here.





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