Overview
The MC33063ADR, produced by Texas Instruments, is a versatile and highly integrated DC-DC converter IC. This device is part of the MC33063A and MC34063A family, designed to simplify the construction of boost, buck, and inverting switching regulators. The MC33063ADR contains all the primary circuitry necessary for these applications, including an internal temperature-compensated reference, a comparator, an oscillator, a PWM controller with active current limiting, a driver, and a high-current output switch. This integration minimizes the need for external components, making it an efficient choice for various power management needs.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | MC33063ADR |
| Package | SOIC-8 |
| Operating Temperature Range | -40°C to 85°C |
| Input Voltage Range | 3 V to 40 V |
| Output Switch Current | Up to 1.5 A |
| Oscillator Frequency | Up to 100 kHz |
| Precision Internal Reference | 2% |
| Short-Circuit Current Limiting | Yes |
| Standby Current | Low |
Key Features
- Wide Input Voltage Range: The device can operate with input voltages ranging from 3 V to 40 V.
- High Output Switch Current: Capable of handling up to 1.5 A of output switch current.
- Adjustable Output Voltage: Allows for adjustable output voltage configurations.
- Oscillator Frequency: The oscillator frequency can go up to 100 kHz.
- Precision Internal Reference: Features a precision internal reference with a 2% tolerance.
- Short-Circuit Current Limiting: Includes active current limiting to protect against short circuits.
- Low Standby Current: Designed to consume low current in standby mode.
Applications
The MC33063ADR is suitable for a variety of DC-DC converter applications, including:
- Boost Converters: Used to step up the input voltage to a higher output voltage.
- Buck Converters: Used to step down the input voltage to a lower output voltage.
- Inverting Converters: Used to generate a negative output voltage from a positive input voltage.
- General Power Management: Ideal for applications requiring efficient and reliable power conversion, such as in industrial, automotive, and consumer electronics.
Q & A
- What is the operating temperature range of the MC33063ADR?
The MC33063ADR operates from -40°C to 85°C.
- What is the input voltage range of the MC33063ADR?
The input voltage range is from 3 V to 40 V.
- What is the maximum output switch current of the MC33063ADR?
The maximum output switch current is up to 1.5 A.
- Does the MC33063ADR have short-circuit current limiting?
Yes, it includes active current limiting to protect against short circuits.
- What is the precision of the internal reference voltage?
The precision internal reference has a 2% tolerance.
- What types of DC-DC converters can be built using the MC33063ADR?
The device can be used to build boost, buck, and inverting switching regulators.
- What is the typical oscillator frequency range of the MC33063ADR?
The oscillator frequency can go up to 100 kHz.
- Does the MC33063ADR require many external components?
No, it requires minimal external components to build converters in various topologies.
- What is the standby current characteristic of the MC33063ADR?
The device has a low standby current.
- What package types are available for the MC33063ADR?
The MC33063ADR is available in SOIC-8 packages.
