Overview
The MC33063ADG4 is a versatile and highly integrated switching regulator from Texas Instruments. This device is part of the MC33063A series, which includes 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 conversion applications.
The MC33063ADG4 is packaged in an SOIC (D) package with 8 pins and is designed to operate over a temperature range of –40°C to 85°C. It features a precision internal reference, short-circuit current limiting, and a low standby current, which are essential for efficient and reliable power management.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| 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 | ||
| Current-Limit Sense Voltage | 250 | 300 | 350 | mV |
| Supply Current (ICC) | 4 | mA | ||
| Junction-to-Ambient Thermal Resistance (RθJA) | 97 | °C/W |
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 settings
- Oscillator Frequency: Up to 100 kHz
- Precision Internal Reference: 2% accuracy
- Short-Circuit Current Limiting: Protects the device from overcurrent 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 telecommunications equipment for power conversion
- Consumer & Computing: Applied in consumer electronics and computing devices for reliable power management
- Test & Measurement: Utilized in test and measurement equipment for precise voltage regulation
- HMIs (Human Machine Interfaces): Used in HMIs for stable and efficient power supply
- Cable Solutions: Employed in cable solutions for reliable power delivery
- Blood Gas Analyzers: Used in medical devices such as blood gas analyzers for precise voltage control
Q & A
- What is the input voltage range of the MC33063ADG4?
The input voltage range is from 3 V to 40 V.
- What is the maximum output switch current of the MC33063ADG4?
The maximum output switch current is up to 1.5 A.
- What is the oscillator frequency range of the MC33063ADG4?
The oscillator frequency range is up to 100 kHz.
- Does the MC33063ADG4 have short-circuit current limiting?
Yes, it has short-circuit current limiting to protect the device from overcurrent conditions.
- What is the operating temperature range of the MC33063ADG4?
The operating temperature range is from –40°C to 85°C.
- What type of package does the MC33063ADG4 come in?
The MC33063ADG4 comes in an SOIC (D) package with 8 pins.
- What is the junction-to-ambient thermal resistance of the MC33063ADG4?
The junction-to-ambient thermal resistance (RθJA) is 97 °C/W.
- Does the MC33063ADG4 have a precision internal reference?
Yes, it has a precision internal reference with 2% accuracy.
- What are some typical applications of the MC33063ADG4?
Typical applications include portable devices, telecommunications, consumer and computing devices, test and measurement equipment, HMIs, cable solutions, and medical devices like blood gas analyzers.
- How should the feedback loop be laid out for the MC33063ADG4?
The feedback loop layout should keep trace lengths to a minimum to avoid unnecessary IR drop.
