6A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter with VID Control

Topology: Buck
Input Voltage (min.): 4.50 V
Input Voltage (max.): 18.00 V
Output 1: 0.68 V / 6.000 A

Original publication on 2019-03-07, revision 00


The RT6203E is an adaptive on-time mode synchronousBuck converter. The main control loop of the RT6203Euses an adaptive on-time mode control which provides avery fast transient response with no external components.The RT6203E operates from 4.5V to 18V VIN input.


  • VID Control Range Via I2C Compatible Interface:
  • 0.6V to 0.7V in 20mV Steps
  • 0.7V to 1.2V in 10mV Steps
  • 1.2V to 1.62V in 20mV Steps
  • Adjustable Current Limit
  • Adjustable Thermal Shutdown
  • Fast Transient Response
  • Steady 700kHz Switching Frequency
  • Optimized for All Ceramic Capacitors
  • Internal Soft-Start
  • Input Under-Voltage Lockout
  • Thermal Shutdown
  • RoHS Compliant and Halogen Free


  Order Code SPEC Product series L
RDC typ.
RDC max.
Bauform Version Samples
744770015 PDF WE-PD SMT Power Inductor 1.5 10 12 5 6 42 1280 Standard