MC33063A Datasheet – Buck/Inverting Switching Regulator – TI

Part Number: MC33063A

Function: 1.5-A Peak Boost/Buck/Inverting Switching Regulator

Package: SOIC, SON, PDIP 8 Pin Type

Manufacturer: Texas Instruments


MC33063A datasheet


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


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


1. Blood Gas Analyzers: Portable
2. Cable Solutions
3. HMIs (Human Machine Interfaces)
4. Telecommunications
5. Portable Devices

Other data sheets are available within the file: MC33063, MC33063AD, MC33063ADE4, MC33063ADG4

MC33063A Datasheet PDF

MC33063A pdf