Overview
The MC34063ADR2G is a monolithic control circuit designed for DC-to-DC converters, produced by onsemi. This device is part of the MC34063A series, which includes the MC33063A, SC33063A, and NCV33063A. It is specifically designed to be used in Step-Down, Step-Up, and Voltage-Inverting applications with a minimal number of external components. The MC34063ADR2G features an internal temperature-compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver, and a high-current output switch.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3 to 40 | V |
| Output Switch Current | Up to 1.5 | A |
| Oscillator Frequency | Up to 100 | kHz |
| Internal Reference Precision | 2% | |
| Operating Junction Temperature | 0 to 150 | °C |
| Operating Ambient Temperature Range | 0 to 70 | °C |
| Storage Temperature Range | -65 to 150 | °C |
| Supply Current (VCC = 5 V to 40 V) | Up to 4 | mA |
| Line Regulation (VCC = 3 V to 40 V) | 1.4 to 5 | mV |
| Load Regulation (Vin = 12 V, IO = 75 mA to 175 mA) | 10 mV (±0.017%) | |
| Output Ripple (Vin = 12 V, IO = 175 mA) | 400 mVpp |
Key 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
- Minimal External Components Required
Applications
The MC34063ADR2G is versatile and can be used in various DC-to-DC converter applications, including:
- Step-Down (Buck) Converters
- Step-Up (Boost) Converters
- Voltage-Inverting Converters
- Power Supplies for Electronic Devices
- Battery-Powered Systems
- Industrial Control Systems
Q & A
- What is the input voltage range of the MC34063ADR2G?
The input voltage range is from 3 V to 40 V. - What is the maximum output switch current of the MC34063ADR2G?
The maximum output switch current is up to 1.5 A. - What is the oscillator frequency range of the MC34063ADR2G?
The oscillator frequency can go up to 100 kHz. - What is the precision of the internal reference voltage?
The internal reference voltage has a precision of 2%. - What are the operating temperature ranges for the MC34063ADR2G?
The operating ambient temperature range is from 0°C to 70°C, and the operating junction temperature range is from 0°C to 150°C. - What is the storage temperature range for the MC34063ADR2G?
The storage temperature range is from -65°C to 150°C. - How much supply current does the MC34063ADR2G typically consume?
The supply current is typically up to 4 mA when VCC is between 5 V and 40 V. - What is the line regulation of the MC34063ADR2G?
The line regulation is between 1.4 mV and 5 mV over the input voltage range. - Can the MC34063ADR2G be used in safety-critical applications?
No, it is not recommended for use in safety-critical applications without proper evaluation and validation. - What types of DC-to-DC converters can be built using the MC34063ADR2G?
The MC34063ADR2G can be used to build Step-Down (Buck), Step-Up (Boost), and Voltage-Inverting converters.
