SLVU240B May 2008 – August 2018 MSP430F2131 , TPS62260
TPS6226x 2.25-MHz 600-mA Step Down Converter in 2 x 2 WSON and SOT Package data sheet
MSP430x2xx Family User's Guide
MSP430F21x1 Mixed-Signal Microcontrollers data sheet
MSP430F2131 Device Erratasheet