MAGMA is a high temperature Pulse Width Modulation (PWM) Controller. It operates at constant frequency, adjustable from 50KHz up to 500KHz. MAGMA can operate with input voltages from 6 to 30V. It also features an internal voltage reference, input feed forward compensation making it less sensitive to input voltage variations, and a soft start activated whenever MAGMA comes out of stand-by or the output is enabled. An under-voltage lockout function maintains the PWM output low until the controller has sufficient supply voltage for proper operation. A “power good” comparator returns a “good” signal when the DC-DC converter output voltage has reached a programmable threshold. A synchronization pin can be driven by an external clock while the internal clock is available on CKOUT pin.

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