RT6337
Description
The RT6337 family are high efficiency synchronous step-down DC-DC converters with pseudo constant switching frequency 500k Hz and deliver up to 9A output current. The RT6337A/B and RT6337AH/BH operate from 4.5V to 23V input voltage. The output voltage of RT6337A/AH is programmed between 0.6V to 5.5V and RT6337B/BH is fixed to 3.3V output voltage. The input voltage of RT6337C/CH ranges from 5.2V to 23V and the output voltage of RT6337C/CH is fixed to 5.1V.
The RT6337 adopts Advanced Constant On-Time (ACOT® ) control architecture that provides ultra-fast transient response and further reduces the external ponent count. In steady states, the ACOT® operates at nearly constant switching frequency over line, load and output voltage ranges and makes the EMI filter design easier.
By setting the voltage of the EN/MODE pin, RT6337 operates either in diode emulation mode (DEM) or ultrasonic mode (USM) at light load. The USM maintains operation frequency above 25k Hz, which eliminates...
