Catalog > Internet of Things (IOT) Related Products > RFduino Rfduino Rfduino Single AAA Battery Shield Rfduino Single AAA Battery Shield Provides Stable 3.3V Step-up Switching Regulator RFDUINO SINGLE AAA SHIELD RFD22127 :: RFduino Single AAA Battery Shield with Step-up Switching Regulator providing a 3.3V stable voltage 407.99 ZAR inc for 1 Each 4 in Stock Add Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Overview Single AAA Battery Shield for RFduino. The shield has a step-up switching regulator which allows the batteries to be drained down to low voltages while still providing a stable 3.3V to the RFduino. Specifications Item : RFD22127 Output Voltage : 3.3V Output Current : 40mA Size – Width : 22.86mm (0.900 Inch) Size – Length : 75.69mm (2.980 Inch) Downloads PDB Layout - RFD22126 PDF File 2.17 MB Schematic - RFD22126 PDF File 153.42 KB Datasheet - RFduino. PDF File 1.55 MB References Product Page Videos