RT8100 pdf datasheet (Synchron

The RT8100 is an advanced DC/DC synchronous buck PWM
controller with several innovative functions for specific
customer’ s ASIC only. The part features RichTek’ s
innovative design and topology say “analogous current
mode” for current sensing and full functions for various
applications including adjustable soft start, free-run and
adjustable operation frequency and enable; the part is with
design of 12V+12V boot strapped driver which is capable
to drive up to 20Amp output current; moreover the part is
with implementation of accuracy DCR current sensing
topology. There are several specific features implemented
and reserved for the specific customer’ s special
applications including dual VCORE control mode including
tracking and stand-alone mode, and output current
indication. The part is proposed with a small footprint of
VQFN-16L 3x3 package.