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

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Switch current limit (Typ) (A) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Duty cycle (Max) (%) Operating temperature range (C) Type Rating Package Group
MC34063A Order now 3     40     1.25     40     1.5       100     4         80     0 to 70     Converter     Catalog     PDIP | 8
SOIC | 8
SON | 8    
MC33063A Order now 3     40     1.25     40     1.5       100     4         80     -40 to 85     Converter     Catalog     PDIP | 8
SOIC | 8
SON | 8    
MC33063A-Q1 Order now 3     40     1.25     40     1.5     33     100     4         90     -40 to 125     Converter     Automotive     SOIC | 8