Ultra Low Power Synchronous Step-Down PFM DC/DC Converter
The XC9265 series from TOREX are Ultra Low Power synchronous-rectification type PFM step down DC/DC converters with built-in 0.40Ohms Pch driver and 0.40 Ohms Nch synchronous switching transistors, designed to allow use of ceramic capacitor.
PFM control enable a low quiescent current, making these products ideal for battery operated devices that require high efficiency and long battery life. Only an inductor and two capacitors are needed as external parts to make a step down DC/DC circuit. Operation range is from 2.0V to 6.0V. This product has fixed output voltage from 1.0V to 4.0V (+/-2%) in increments of 0.1V. During stand-by, all circuits are shut down to reduce consumption to as low as 0.1uA or less.
The XC9265 series comes in 2 packages, a small SOT-25 and an ultra small USP-6EL package.