An undervoltage lockout (UVLO) circuit with large hys-teresis coupled with low startup and operating currentreduce power dissipation in the startup resistor andallow use of ceramic bypass capacitors. The 262kHzswitching frequency is internally trimmed to士12%accuracy; this allows the optimization of the magneticand filter components resulting in compact, cost-effec-tive power supplies. The MAX5021 with 50% maximumduty cycle and MAX5022 with 75% maximum duty
cycle are recommended for forward converters and fly-back converters, respectively. The MAX5021/MAX5022are available in 6-pin SOT23, 8-pin AMAX, and 8-pinDIP packages and are rated for operation over the-400C to +850C temperature range......
cycle are recommended for forward converters and fly-back converters, respectively. The MAX5021/MAX5022are available in 6-pin SOT23, 8-pin AMAX, and 8-pinDIP packages and are rated for operation over the-400C to +850C temperature range......