Controller IC Chip - MOSFET RT7238DGQUF RT7238D RT7238 4V= chip for laptop - Ολοκληρωμένο τσιπ φορητού υπολογιστή (Κωδ.1-CHIP0901) 8A, 23V, 500kHz Synchronous Step-Down Converter with 3.3V/5V LDO The RT7238B/C/D/E is an advanced constant on-time (ACOTTM) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOTTM) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V  Advanced Constant On-Time (ACOT) Control  8V to 23V (RT7238B/C/D/E) Input Voltage Range @ 8A Output Current  ACOTTM Mode Performs Fast Transient Response  ACOTTM Architecture to Enable all MLCC Output Capacitor Usage  Fixed 500kHz Switching Frequency  High Efficient Internal Power MOSFET Switch  27mΩ (High-Side) and 10mΩ (Low-Side)  Adjustable Output Voltage from 0.6V to 5V (RT7238D)  Fixed 3.3V (RT7238B/D) or 5V (RT7238C/

https://www.itsys.gr/controller-ic-chip-mosfet-rt7238dgquf-rt7238d-rt7238-4v-chip-for-laptop-olokliromeno-tsip-foritoy-ypologisti-kod-1-chip0901-html