Battery-free 5 volt project power

Step 3 Circuit Origami: MAX756 and storage capacitor

A. Identify the 8 pins on the MAX756 and orient the chip with pin 1 on the bottom left.

B. Flip the chip over (i.e. rotate 180 degrees through the long axis) and clip pins 4 and 5. These pins go to the MAX756's low-battery indicator feature and are not used in this Instructable. You could modify the circuit and use these pins to determine when the voltage on the storage capacitor (C1) is low. Flip the storage capacitor over so the negative pin is on the left.

C. Place the MAX756 on the storage capacitor so that the chip is roughly between the storage capacitor's negative C1(-) and positive C1(+) pins.

D. Bend the storage capacitor pins towards the MAX756 as if to clip the chip in place. Bend pins 2 and 7 on the MAX756 so they are nearly touching the storage capacitor's negative pin C1(-). Bend pin 6 so it is nearly touching the storage capacitor's positive pin C1(+).

E. Solder together C1(-) and pins 2 and 7 on the MAX756. Then solder together C1(+) and pin 6 on the MAX756.

F. Finally, cut a small piece of electrical tape roughly the size of the MAX756's height and width. Use this piece to cover the joints soldered in E.