Overview
The MC33063AD is a versatile DC-DC converter control circuit produced by Texas Instruments. This component is designed to operate in various switching regulator configurations, including boost, buck, and inverting topologies. It is characterized by its wide input voltage range, high output switch current, and adjustable output voltage, making it suitable for a variety of power supply applications.
The device is housed in an 8-pin SOIC package and is RoHS compliant. It operates over a temperature range of -40°C to 85°C, ensuring reliability in diverse environmental conditions. The MC33063AD requires minimal external components to build converters, thanks to its integrated PWM controller, active current limiting, driver, and high-current output switch.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 3 V to 40 V |
| Output Switch Current | Up to 1.5 A |
| Oscillator Frequency | Up to 100 kHz |
| Output Voltage Range | 1.25 V to 40 V |
| Package Type | 8-Pin SOIC |
| Operating Temperature Range | -40°C to 85°C |
| RoHS Compliance | Yes |
| Short-Circuit Current Limiting | Yes |
| Standby Current | Low |
Key Features
- Wide Input Voltage Range: Operates from 3 V to 40 V.
- High Output Switch Current: Up to 1.5 A.
- Adjustable Output Voltage: Allows for flexible output voltage settings.
- Oscillator Frequency: Up to 100 kHz.
- Precision Internal Reference: 2% accuracy.
- Short-Circuit Current Limiting: Protects against short-circuit conditions.
- Low Standby Current: Minimizes power consumption in standby mode.
- Minimal External Components: Requires few external components to build converters.
Applications
The MC33063AD is suitable for a wide range of DC-DC conversion applications, including:
- Boost Converters: For stepping up input voltage to a higher output voltage.
- Buck Converters: For stepping down input voltage to a lower output voltage.
- Inverting Converters: For generating a negative output voltage from a positive input voltage.
- Power Supplies: For various electronic devices requiring regulated DC power.
- Industrial and Automotive Systems: Where reliable and efficient power conversion is critical.
Q & A
- What is the input voltage range of the MC33063AD?
The input voltage range is from 3 V to 40 V.
- What is the maximum output switch current of the MC33063AD?
The maximum output switch current is up to 1.5 A.
- What is the oscillator frequency range of the MC33063AD?
The oscillator frequency can be up to 100 kHz.
- Is the MC33063AD RoHS compliant?
Yes, the MC33063AD is RoHS compliant.
- What are the typical applications of the MC33063AD?
Typical applications include boost, buck, and inverting converters, as well as various power supply systems.
- What is the operating temperature range of the MC33063AD?
The operating temperature range is from -40°C to 85°C.
- Does the MC33063AD have short-circuit current limiting?
Yes, it has short-circuit current limiting.
- What is the package type of the MC33063AD?
The package type is an 8-pin SOIC.
- How many external components are required to build a converter using the MC33063AD?
The MC33063AD requires minimal external components to build converters.
- Is the MC33063AD suitable for automotive applications?
No, it is not specifically qualified for automotive applications.
