ST2S06A33 ST2S06B - ST2S06D33 Dual synchronous rec.
STMicroelectronics
ST2S06B - (ST2S06xxx) Dual synchronous rectification
ST2S06A33 ST2S06B - ST2S06D33 Dual synchronous rectification with reset or inhibit, 0.5 A, 1.5 MHz adjustable step-down switching regulator Features ■.