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Manufacturer Part #


MC34063 Series 40 V 1.5 A DC / DC Monolithic Converter Control Circuit - SOIC-8

Mfr. Name: STMicroelectronics
Standard Pkg:
Product Variant Information section
Date Code: 1912
Product Specification Section
Technical Attributes
Attributes Table
Topology: Buck/Boost/Inverting
Input Voltage: 3V to 40V
Output Current-Max: 1.5A
Output Type: Adjustable
Switching Frequency-Max: 100kHz
Operating Temp Range: 0°C to 70°C
Efficiency: 89%
No. of Outputs: 1
Quiescent Current: 2.5mA
Storage Temperature Range: -40°C to +150°C
Load Regulation: 10mV
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features and Applications

The MC34063ACD-TR is a monolithic control circuit delivering the main functions for DC/DC voltage converting.

The device contains an internal temperature compensated reference, comparator, duty cycle controlled oscillator with an active current limit circuit, driver and high current output switch. Output voltage is adjustable through two external resistors with a 2 % reference accuracy. Employing a minimum number of external components the MC34063A/E devices series is designed for step-down, step-up and voltageinverting applications.


  • Output switch current in excess of 1.5 A
  • 2 % reference accuracy
  • Low quiescent current: 2.5 mA (typ.)
  • Operating from 3 V to 40 V
  • Frequency operation to 100 kHz
  • Active current limiting
Pricing Section
Web Price:
$0.53 USD Each
Cost Per Unit
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Tariff charges may apply if shipping to the United States. An estimate of tariff charges will be calculated at checkout.

$7.00 reeling fee is amortized over the number of components for each reel.
Mini-Reels are a custom product and are non-cancelable and non-returnable.

Product Variant Information section