Overview
The MC33063AP is a versatile switching regulator from Texas Instruments, designed to operate in boost, buck, and inverting topologies. This device is part of the MC3x063A family and is characterized by its wide input voltage range, high output switch current, and adjustable output voltage. The MC33063AP is particularly useful in applications requiring minimal external components and robust performance across various temperature ranges.
Key Specifications
| Parameter | Min | |||
|---|---|---|---|---|
| VCC Supply Voltage | 3 | 40 | V | |
| Operating Free-Air Temperature (MC33063A) | -40 | 85 | °C | |
| Oscillator Frequency | 24 | 33 | 42 | kHz |
| Output Switch Current | 1.5 | A | ||
| Switch Collector to Emitter Voltage | 40 | V | ||
| Supply Current (VCC = 5 V, CT = 1 nF) | 4 | mA | ||
| Saturation Voltage (VCE(sat)) | 1 | 1.3 | V |
Key Features
- Wide Input Voltage Range: 3 V to 40 V
- High Output Switch Current: Up to 1.5 A
- Adjustable Output Voltage: Allows for flexible output voltage configurations
- Oscillator Frequency Up to 100 kHz: High-frequency operation for various applications
- Precision Internal Reference: 2% accuracy for stable output voltage
- Short-Circuit Current Limiting: Protects the device from short-circuit conditions
- Low Standby Current: Minimizes power consumption in standby mode
Applications
- Portable Devices: Suitable for battery-powered devices due to its low standby current and high efficiency
- Telecommunications: Used in various telecom equipment for power conversion needs
- Consumer & Computing: Applied in consumer electronics and computing devices for efficient power management
- Test & Measurement: Utilized in test and measurement equipment for reliable power supply
- HMIs (Human Machine Interfaces): Used in HMIs for robust and efficient power conversion
- Blood Gas Analyzers: Employed in medical devices such as blood gas analyzers for precise power supply
Q & A
- What is the operating temperature range of the MC33063AP?
The MC33063AP operates from -40°C to 85°C.
- What is the maximum output switch current of the MC33063AP?
The maximum output switch current is up to 1.5 A.
- What is the oscillator frequency range of the MC33063AP?
The oscillator frequency can go up to 100 kHz, with a typical frequency of 33 kHz.
- Does the MC33063AP have short-circuit current limiting?
Yes, the MC33063AP features short-circuit current limiting to protect the device from short-circuit conditions.
- What is the recommended input decoupling capacitor for the MC33063AP?
A 1000-µF decoupling capacitor is recommended on the input.
- What are the typical applications of the MC33063AP?
The MC33063AP is used in portable devices, telecommunications, consumer and computing devices, test and measurement equipment, HMIs, and medical devices such as blood gas analyzers.
- What is the precision of the internal reference voltage of the MC33063AP?
The internal reference voltage has a precision of 2%.
- Can the MC33063AP be used in boost, buck, and inverting topologies?
Yes, the MC33063AP can be configured for boost, buck, and inverting topologies.
- What is the typical supply current of the MC33063AP at VCC = 5 V?
The typical supply current at VCC = 5 V and CT = 1 nF is 4 mA.
- What is the saturation voltage (VCE(sat)) of the MC33063AP?
The saturation voltage (VCE(sat)) is typically 1.3 V.
