dc–to–dc converter
control circuits
the mc34063a series is a monolithic control circuit containing the
primary functions required for dc–to–dc 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 step–up and voltage–inverting applications with a
minimum number of external components. refer to application notes
an920a/d and an954/d for additional design information.
• 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