MC34063A Series 40V 1.5A 100kHz Step-Up/Down/Inverting Switching Regulator-SOIC8

Mfr Part#: MC34063ADR2G
Mounting Method:  Surface Mount
Package Style:  SOIC-8
Packaging:  REEL
Std Packaging Qty:  2,500




$0.1790 USD (each)
2500 $0.1790
5000+ $0.1770 (Save 1%)


Qty in Stock : 7,500
On Order :
Min. Order Qty: 2,500
Multiple of: 2,500
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Product Highlight

  • Topology: Buck/Boost/Inverting
  • Input Voltage: 3 to 40 V
  • Output Current-Max: 1.5 A
  • Output Type: Adjustable
  • Switching Frequency-Max: 100 kHz
  • Operating Temp Range: 0 to 70 °C
  • Efficiency: 87.7 %
  • No. of Outputs: 1
  • Storage Temperatue Range: -65 to +150 °C
  • Load Regulation: 10 mV
  • Load Regulation (%): 0.017 %

The MC34063A Series are switching regulators with 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. The MC33063 is an extended temperature version. The NCV33063 is an extended temp version for automotive.

Key Features:

  • 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
  • Pb−Free Packages are Available
  • MC33063A = -40 to +85 °C


  • Wide input voltage range usable for many applications
  • <100 uA Collector Off-State Current
  • Adjustable current limit provides improved protection
  • Large 1.5A peak current capability provides up to ~1A of average current output
  • External resistor divider for various output voltage options
  • Optimize frequency for size or efficiency
  • Accurate system level performance
  • Exposed pad package allows for higher output current and improved thermal performance


  • Higher Switching Frequency
  • Fan Controller
  • DC-DC Power Supply 

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