Pololu Robotics & Electronics
Menu
My account Comments or questions? About Pololu Contact Ordering information Distributors

Pololu Forum

Wiring for S10V3F9

Hello, I want to use the Pololu 9V Step-Up/Step-Down Voltage Regulator S10V3F9 for using an 11.1 volt LiPo battery to power devices that run on 9 volts. I am wondering if it will work if I do not use the SHDN (shutdown) connection.

Attached is a wiring diagram that I drew, my apologies for the nonstandard notation.

Hello.

Your proposed connections look okay, but as mentioned at the bottom of the product page description (under the “LC Voltage Spikes” header) you might consider adding a 33 μF or larger electrolytic capacitor close to the regulator between VIN and GND to suppress any LC voltage spikes from connecting your battery. The S10V3F9 is enabled by default, so you do not need to connect the nSHDN pin unless you want put it in low power sleep mode.

- Patrick

Thank you!