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

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

Parametrics

Compare all products in Buck-boost, inverting & split-rail converters (integrated switch) Email Download to Excel
Part number Order 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 Order now Boost
Buck
Flyback
Forward
Inverting
SEPIC    
3     40     1.25     40     1.5     80       100    
   
4     Catalog     Converter     0 to 70     PDIP | 8
SOIC | 8
SON | 8    
MC33063A Order now Boost
Buck
Flyback
Forward
Inverting
SEPIC    
3     40     1.25     40     1.5     80       100    
   
4     Catalog     Converter     -40 to 85     PDIP | 8
SOIC | 8
SON | 8    
MC33063A-Q1 Order now Boost
Buck
Flyback
Forward
Inverting
SEPIC    
3     40     1.25     40     1.5     90     33     100    
   
4     Automotive     Converter     -40 to 125     SOIC | 8