Step-Up / Step-Down Voltage Regulator S7V8A

PololuSKU: RB-Pol-221
Manufacturer #: 2118

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  • Compatible with standard solderless breadboards and perfboards and connectors
  • Operating Voltage: 2.7V - 11.8V
  • Has a typical efficiency of over 90% and can deliver 500mA to 1A
  • Integrated over-temperature and short-circuit protection
  • Size: 0.45'' × 0.65'' × 0.1''
  • Weight: 0.6g

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  • Maximum Output Current: 1A
  • Minimum Output Voltage: 2.5V
  • Maximum Output Voltage: 8V
  • Maximum Quiescent Current: 0.3mA

Customer Reviews

Based on 6 reviews
It works.

It worked well in my project.

Works Great!

I have used 5 of these in various projects from a desktop fountain to a Li-ion battery tester. So far they work great. Realizing that SMPSs are relatively delicate I am reasonably careful. I have accidentally shorted it out and it survived. I have only lost one due to reverse polarity on the supply leads. It didn't last a moment, but that was my fault.

Must have

This little regulator is a must have for micro quad builds using DIY FPV setup. The POT is a bit sensible, make sure to glue it down once you get your desired voltage.

Great product and at great price!

Instead of creating a circuit based on a 3.3v voltage regulator like the LD1117V33 IC that has a max output of 800ma, I prefer to use Pololu's little step-up/step-down regulators. It's smaller and has a 1amp max output. Great product and at great price!

Small size

These are great regulators for small projects. I use them as an alternative to the arduino power supply to power my project on a wide range of batteries.

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