MC34063A 1.5-A Boost/Buck/Inverting Switching Regulator | TI.com

MC34063A (ACTIVE)

1.5-A Boost/Buck/Inverting Switching Regulator

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

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

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Parametrics Compare all products in Buck-boost, inverting & split-rail converters (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)
Features
Iq (Typ) (mA)
Rating
Type
Operating Temperature Range (C)
Package Group
MC34063A MC33063A MC33063A-Q1
Boost
Buck
Flyback
Forward
Inverting
SEPIC    
Boost
Buck
Flyback
Forward
Inverting
SEPIC    
Boost
Buck
Flyback
Forward
Inverting
SEPIC    
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    
N/A     N/A     N/A    
4     4     4    
Catalog     Catalog     Automotive    
Converter     Converter     Converter    
0 to 70     -40 to 85     -40 to 125    
PDIP | 8
SOIC | 8
SON | 8    
PDIP | 8
SOIC | 8
SON | 8    
SOIC | 8