DC770C

LINEAR TECHNOLOGY DC770C Evaluation Board, 3.3V 5A Buck Regulator, 3.3V Output, 6V-36V Input

The is a demonstration board featuring LT3782AEFE constant frequency current mode boost controller. The LT3782AEFE is a current mode two phase step up DC to DC converter controller. Its high switching frequency up to 500KHz and two phase operation reduce system filtering capacitance and inductance requirements. The DC770C demonstration board operates over 10V to 28V input and provides 4A of output current at 50V output. The 250KHz constant frequency operation results in a small and efficient circuit. The converter provides high output voltage accuracy typically ±3% over wide load range with no minimum load requirement. The demonstration circuit can be easily modified to generate different output voltages.

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High current gate drive of 4A

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Programmable soft start and current limit

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Programmable slope compensation for high noise immunity

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MOSFET gate signals with programmable falling edge delay for external synchronous drivers

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Programmable undervoltage lockout

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Programmable duty cycle clamp of 50% or higher