+5V + 12V boost power supply MAX761


Posted on Mar 28, 2007

As shown in FIG grounds efficient, low-power step-up DC-DC converter MAX761 and a few external components, the + 5V + 12V boost power supply. Its characteristics are: the conve


+5V + 12V boost power supply MAX761
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rsion efficiency of 86%; quiescent current of 110 A; has a low battery voltage detection function, the figure R3, R4 battery voltage detection resistor divider according to the general empirical formula: R4 R3 (VTPIP/1.5-1 ) is calculated, VTPIP to detect a trigger voltage.




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