The MC33063A-Q1 device is an easy-to-use IC containing all the primary circuitry needed for building simple DC-DC converters. The device primarily consists 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 device requires minimal external components to build converters in the boost, buck, and inverting topologies.
The MC33063A-Q1 device is characterized for operation from 40°C to 125°C.
| Topology | Boost, Buck, Flyback, Forward, SEPIC |
| Vin (min) (V) | 3 |
| Vin (max) (V) | 40 |
| Vout (min) (V) | 1.25 |
| Vout (max) (V) | 40 |
| Switch current limit (typ) (A) | 1.5 |
| Type | Converter |
| Regulated outputs (#) | 1 |
| Switching frequency (min) (kHz) | 33 |
| Switching frequency (max) (kHz) | 100 |
| Iq (typ) (mA) | 4 |
| Features | Nonsynchronous rectification |
| TI functional safety category | Functional Safety-Capable |
| Duty cycle (max) (%) | 90 |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Automotive |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |