用這顆MAX668去評估看看. 輸出電壓是用電阻去調整
Setting the Output Voltage
The output voltage is set by two external resistors (R2
and R3, Figures 2, 3, 4, and 5). First select a value for
R3 in the 10kΩ to 1MΩ range. R2 is then given by:
R2 = R3 [(VOUT / VREF) – 1]
where VREF is 1.25V.