Flyback controller with clock sync and 96% duty cycle
The MAX1847EEE+T is a current-mode flyback controller from Analog Devices that handles step-up/step-down conversion in a single topology. Its 96% maximum duty cycle means it can maintain regulation through deep input dips — useful when the primary-side rail sags under load.
Supply rails and output configuration
Operating from a 3 V to 16.5 V Vcc supply, this controller drives an external transistor (the output type is Transistor Driver) and produces a negative output configuration — the flyback action inverts the polarity relative to the input. No synchronous rectifier on-chip, so the secondary-side diode drop and its thermal budget are design variables you own. Single output phase, one output channel, with Enable and Frequency Control as the control features.
Package and lifecycle
Active lifecycle status per Analog Devices, ROHS3 compliant.