Analog Devices Inc. DC2846A Demonstration Circuit for LTC7804

Analog Devices DC2846A Demonstration Circuit is a DC/DC synchronous boost converter featuring the LTC7804 (MSE package), a spread spectrum, or constant frequency current mode synchronous boost controller. The DC2846A generates a 24V output voltage and provides up to 6A of output current. The 500kHz constant switching frequency operation results in a small and efficient circuit.

Features

Wide input voltage range: from 6V to 32V
Relatively high output power, up to 150W
Extremely low quiescent current, it’s 15μA at sleep mode and as low as 1μA at shutdown
Onboard low power bias supply
Ability to select spread-spectrum or fixed frequency
Pulse-skipping mode, forced continuous operation, or low ripple Burst Mode® operation at light loads

Synchronization with an external clock
If V_IN > V_O, the DC2846A practically eliminates usual for boost topology losses in forward biased rectifier by keeping top MOSFET enhanced in pulse-skipping and forced continuous modes

Analog Devices Inc. DC2846A Demonstration Circuit for LTC7804

Features

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