any cases, this can increase battery run time 25% versus a buck regulator. The LTC3536’s switching frequency is user programmable from 300kHz to 2MHz and can be synchronized to a system clock, optimizing the trade-off between efficiency and external component size. The combination of 1% output voltage accuracy, low noise, tiny externals and a 3mm x 3mm DFN package provides a very small solution footprint, typically required in many handheld RF and precision measurement applications.
The LTC3536 includes two N-channel MOSFETs and two P-channel MOSFETs (RDS(ON) of 0.06 Ohm and 0.08 Ohm, respectively) to deliver efficiencies up to 95%. Burst Mode® operation is user programmed to improve efficiency at light loads and requires only 28uA of quiescent current. Shutdown current is less than 1uA, further extending battery run time. Other features include soft-start, short circuit protection, current limiting and thermal shutdown.