PMP1903, Buck-Boost for RS-232 (-12V @ 0.3A)

Reference design by: Texas Instruments

PMP1903, Buck-Boost for RS-232 (-12V @ 0.3A)
PMP1903, Buck-Boost for RS-232 (-12V @ 0.3A). Buck-Boost for RS-232 (-12V @ 0.3A)