1.5-A Boost/Buck/Inverting Switching Regulator - MC34063A

MC34063A (ACTIVE)

1.5-A Boost/Buck/Inverting Switching Regulator

 

Description

The MC33063A and MC34063A devices are easy-to-use ICs containing all the primary circuitry needed for building simple DC-DC converters. These devices primarily consist of an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch. Thus, the devices require minimal external components to build converters in the boost, buck, and inverting topologies.

The MC33063A device is characterized for operation from –40°C to 85°C, while the MC34063A device is characterized for operation from 0°C to 70°C.

Features

  • Wide Input Voltage Range: 3 V to 40 V
  • High Output Switch Current: Up to 1.5 A
  • Adjustable Output Voltage
  • Oscillator Frequency Up to 100 kHz
  • Precision Internal Reference: 2%
  • Short-Circuit Current Limiting
  • Low Standby Current

View more

Parametrics Compare all products in Buck/Boost, Inverting or Split-Rail Converter (Integrated Switch)

 
Topology
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Switch Current Limit (Typ) (A)
Duty Cycle (Max) (%)
Switching Frequency (Min) (kHz)
Switching Frequency (Max) (kHz)
Iq (Typ) (mA)
Operating Temperature Range (C)
Rating
Package Group
Approx. Price (US$)
MC34063A MC33063A MC33063A-Q1
Inverting    Inverting    Buck/Boost   
3    3    3   
40    40    40   
1.25    1.25    1.25   
40    40    40   
1.5    1.5    1.5   
80    80    90   
    33   
100    100    100   
4    4    4   
0 to 70    -40 to 85    -40 to 125   
Catalog    Catalog    Automotive   
PDIP
SOIC
SON   
PDIP
SOIC
SON   
SOIC   
0.17 | 1ku    0.18 | 1ku    0.19 | 1ku