MAX13253

MAX13253 EVALUATION KIT AVAILABLE 1A, Spread-Spectrum, Push-Pull, Transformer Driver for Isolated Power Supplies General Description The MAX13253 is a 1A, push-pull, transformer driver designed to provide a simple solution for low-EMI isolated power supplies. The MAX13253 has an internal oscillator and operates from a single +3.0V to +5.5V supply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing selection of virtually any isolated output voltage with galvanic isolation. The MAX13253 features an integrated oscillator driving a pair of n-channel power switches. The driver includes pin-selectable spread-spectrum oscillation and a wellcontrolled slew rate to reduce EMI. The MAX13253 can optionally be driven by an external clock to further manage EMI. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer, regardless of which clock source is used. The MAX13253 operates with up to 1A of continuous c...