Published:2011/9/13 2:45:00 Author:Zoey | Keyword: Regulator, DC-DC Circuit, CMOS, Buck Converter | From:SeekIC
MAX638 CMOS DC-DC buck converter is a switched regulator, it has a interior MOS FET that has a peak of 375mA, this FET can constitute a DC-DC converter. Its voltage output can be adjusted by external resistance. For this converter, typical efficiency is 85%, typical static current 135µA, oscillation frequency 65kHz. Maximum voltage of LX terminal and LBO terminal is 18V, peak of output current of LX is 375mA, LBO 50mA. If room temperature drops to below 50℃, power of DIP platic encapsulation will be 625mW, micro platic encapsulation will be 450mA, and ceramic encapsulation 800mW. Working temperature range of MAX638 is 0~+70℃, MAX638 -40~+85℃, MAX638M -55~+125℃. This converter has an interior circuit for input voltage-detection.
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