MC34063A – Buck / Boost / Inverting Regulator



MC34063A Operation from 3.0 V to 40 V Input Low Standby Current  Current Limiting Output Switch Current to 1.5 A  Output Voltage Adjustable  Frequency Operation to 100 kHz  Precision 2% Reference  NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC Q100 Qualified and PPAP Capable These Devices are Pb Free, Halogen Free/BFR Free and are RoHS Compliant
The MC34063A Series is a monolithic control circuit containing the primary functions required for DCtoDC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This series was specifically designed to be incorporated in Step Down and StepUp and VoltageInverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information.


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