AC-DC and DC-DC Peak-Current-Mode Converters - Maxim Integrated Products
Description
EVALUATION KIT AVAILABLE
MAX17497A/MAX17497B
AC-DC and DC-DC Peak Current-Mode Converters with Integrated Step-Down Regulator
General Description
The MAX17497A/MAX17497B include both a currentmode fixed-frequency flyback converter and a synchronous step-down regulator.
They contain all the control circuitry required to design wide input-voltage nonisolated power supplies to supply multiple output rails for smart meters, industrial control, and other similar applications.
The MAX17497A has its rising/falling undervoltage lockout (UVLO) thresholds optimized for universal offline (85V AC to 265V AC) applications, while the MAX17497B supports undervoltage lockout (UVLO) thresholds suitable to low-voltage DC-DC applications.
Both devices also include a 3.
3V fixed-output synchronous step-down regulator that delivers up to 600mA load current.
The switching frequency of the MAX17497A flyback converter is 250kHz, while the MAX17497B flyback/ boost converter is 500kHz.
The internally compensa...
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