The TMI3411 is a 1.0MHz constant frequency,  current mode step-down converter. It is ideal for  portable equipment requiring very high current up  to 2A from single-cell Lithium-ion batteries while  still achieving over 90% efficiency during peak load  conditions. The TMI3411 also can run at 100% duty  cycle for low dropout operation, extending battery  life in portable systems while light load operation  provides very low output ripple for noise sensitive  applications. The TMI3411 can supply up to 2A  output load current from a 2.5V to 6V input voltage  and the output voltage can be regulated as low as  0.6V. The high switching frequency minimizes the  size of external components while keeping  switching losses low. The internal slope  compensation setting allows the device to operate  with smaller inductor values to optimize size and  provide efficient operation. The TMI3411 is offered  in a 5-pin, SOT package, and is available in an  adjustable version.  This device offers two operation modes, PWM  control and PFM Mode switching control, which  allows a high efficiency over the wider range of the  load.