Content for MAX743

The MAX743 DC-DC converter IC contains all the active circuitry needed to build small, dual-output power sup- plies. Relying on simple two-erminal inductors rather than transformers, the MAX743 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current The MAX743 typically provides 75% to 82% efficiency over most of the load range. It operates with current-mode feedback at 200kHZ. 50 it can be used with small, lightweight external components. Also, ripple and noise are easy to fiter The MAX743 s inherently reliable due to its internal power transistors and monolithic construction. Thermal shutdown prevents overheating, and cycle-by-cycle current sensing protects the power-swich transistors. Other features include undervoltage lock-out and programmable soft-start