DC-DC Converter Control Circuits


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The RT34063A Series is a monolithic control circuit containing the primary functions required for DC-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 specially designed to be incorporated in step-down and step-up and Voltage-inverting applications with a minimum number of external components.


  • Saver for Cellular Phones
  • DC-DC Converter Module
Key Spec.
Status Obsolete
Vs (typ) (V) 12
Vin (min) (V) 3
Vin (max) (V) 30
Vout (min) (V) 2
Vout (max) (V) 5
Output Adj. Method Resistor
Accuracy (+/- %) 2
Freq (typ) (kHz) 100
Iq (typ) (mA) 3
Ext Sync No
Features Force PWM
Package Type DIP-8
  • Operation from 3.0V to 30V Input
  • Low Standby Current
  • Current Limiting
  • Internal Switch Current to 1.5A
  • Output Voltage Adjustable
  • Frequency Operation to 100kHz
  • Precision 2% Reference
  • RoHS Compliant and 100% Lead (Pb)-Free
Title Last Update ShareDownload
DC-DC Converter Control Circuits 2015/05/20