General Description The MAX742 DC DC converter is a controller for dual out put power supplies in the 3W to 60W range Relying on simple two terminal inductors rather than transformers the MAX742 regulates both outputs independently to within over all conditions of line voltage temperature and load current

Niveau: Secondaire, Lycée, Terminale
_______________General Description The MAX742 DC-DC converter is a controller for dual-out- put power supplies in the 3W to 60W range. Relying on simple two-terminal inductors rather than transformers, the MAX742 regulates both outputs independently to within ±4% over all conditions of line voltage, temperature, and load current. The MAX742 has high efficiency (up to 92%) over a wide range of output loading. Two independent PWM current- mode feedback loops provide tight regulation and opera- tion free from subharmonic noise. The MAX742 can operate at 100kHz or 200kHz, so it can be used with small and lightweight external components. Also ripple and noise are easy to filter. The MAX742 provides a regulated output for inputs ranging from 4.2V to 10V (and higher with additional components). External power MOSFETs driven directly from the MAX742 are protected by cycle-by-cycle overcurrent sensing. The MAX742 also features undervoltage lockout, thermal shut- down, and programmable soft-start. If 3W of load power or less is needed, refer to the MAX743 data sheet for a device with internal power MOSFETs. ________________________Applications DC-DC Converter Module Replacement Distributed Power Systems Computer Peripherals _________________________

• load current


• noise without


• applications dc-dc


• dual output


• pump


• charge-pump load


• duty-cycle limit