The Demo circuit 2357A is a 2kV AC isolated flyback μModule® DC/DC converter featuring the LTM8067. The demo circuit is designed for a 5V flyback output from a 4.5V to 40V input. The typical current capability of the 5V flyback output varies with input voltage from about 200mA at 4.5VIN to about 500mA at 40VIN. Figure 1 shows the maximum output current on VOUT. R1 provides the necessary minimum load current to keep the output voltage in regulation throughout the entire input voltage range. Please see the typical performance characteristic curves in the LTM8067 data sheet to determine the minimum load current for other input/output configurations.
The LTM8067 data sheet gives complete description of the device, operation and application information. The data sheet must be read in conjunction with this quick start guide for demo circuit 2357A.