Published:2011/9/13 2:59:00 Author:Zoey | Keyword: Regulator, DC-DC Circuit, CMOS, Boost Converter | From:SeekIC
MAX631/632/633 CMOS DC-DC boost converter is a switched regulator, it has a interior MOS FET that has a peak of 325mA, this FET can constitute a DC-DC converter with a fixed output. Therein, MAX 631 5V, MAX632 12Vand MAX633 15V.For this converter, typical efficiency is 80%, typical working current 135µA, output voltage error 5% and 10%, oscillation frequency 45kHz. Maximum voltage of VOUT, LX and LBO terminal is 18V, peak of output current of LX is 325mA, 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 MAX631C/632C/633C is 0~+70℃, MAX631E/632E/633E -40~+85℃, MAX631M/632M/633M -65~+125℃. This converter has an interior circuit for low input voltage-detection and an output pump for spare negative ouput.
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