Datasheet Summary
Order this document by MC34129/D
High Performance Current Mode Controllers
The MC34129/MC33129 are high performance current mode switching regulators specifically designed for use in low power digital telephone applications. These integrated circuits feature a unique internal fault timer that provides automatic restart for overload recovery. For enhanced system efficiency, a start/run parator is included to implement bootstrapped operation of VCC. Other functions contained are a temperature pensated reference, reference amplifier, fully accessible error amplifier, sawtooth oscillator with sync input, pulse width modulator parator, and a high current totem pole driver ideally...