MC33363ADWR2

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Adjustable output voltage - Thermal shutdown protection - Overcurrent protection

Package: SOIC-16

Essence: The MC33363ADWR2 is a voltage regulator IC that provides a stable output voltage for various electronic devices. It offers low dropout voltage, high output current capability, and adjustable output voltage, making it suitable for a wide range of applications.

Packaging/Quantity: The MC33363ADWR2 is available in a SOIC-16 package. It is typically sold in reels containing 250 units.

Specifications

• Input Voltage Range: 4.5V to 28V
• Output Voltage Range: 1.25V to 26V
• Dropout Voltage: 0.6V at 1A
• Output Current: Up to 1.5A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The MC33363ADWR2 has a total of 16 pins. The pin configuration is as follows:

1. Enable (EN)
2. Feedback (FB)
3. Ground (GND)
4. Output (OUT)
5. Compensation (COMP)
6. Soft Start (SS)
7. Error Amplifier Inverting Input (EA-)
8. Error Amplifier Non-Inverting Input (EA+)
9. Error Amplifier Output (EAOUT)
10. Current Sense (CS)
11. Current Limit (CLIM)
12. Thermal Shutdown (TSD)
13. VCC
14. VCC
15. VCC
16. VCC

Functional Features

• Low Dropout Voltage: The MC33363ADWR2 has a low dropout voltage of 0.6V at 1A, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 1.5A, this voltage regulator can handle high current loads without sacrificing stability.
• Adjustable Output Voltage: The output voltage can be adjusted from 1.25V to 26V using external resistors, providing flexibility for different applications.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents damage due to excessive temperature by shutting down the regulator temporarily.
• Overcurrent Protection: The MC33363ADWR2 features overcurrent protection, safeguarding the circuit and load from excessive current.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - High output current capability allows for powering a wide range of electronic devices. - Adjustable output voltage provides versatility for various applications. - Thermal shutdown and overcurrent protection enhance reliability and safety.

Disadvantages: - Limited output voltage range compared to some other voltage regulators on the market. - Requires external components (resistors) for adjusting the output voltage.

Working Principles

The MC33363ADWR2 operates as a linear voltage regulator. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal pass transistor accordingly to maintain a stable output voltage. The error amplifier amplifies the difference between the output voltage and the reference voltage, driving the pass transistor to regulate the output voltage.

Detailed Application Field Plans

The MC33363ADWR2 is widely used in various electronic devices and systems that require a stable and regulated power supply. Some common application fields include:

1. Consumer Electronics: Used in televisions, audio systems, and gaming consoles to provide regulated power to different components.
2. Automotive Electronics: Employed in automotive applications such as infotainment systems, lighting control, and engine management systems.
3. Industrial Control Systems: Used in industrial automation, motor control, and power supply units for stable operation.
4. Telecommunications: Utilized in networking equipment, routers, and communication devices to ensure a reliable power source.
5. Medical Devices: Incorporated into medical equipment like patient monitors, diagnostic devices, and infusion pumps.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with a wide input voltage range and adjustable output voltage.
2. LT1083: A high-current linear voltage regulator with low dropout voltage and adjustable output voltage.
3. LM7805: A fixed-output voltage regulator that provides a stable 5V output for various applications.
4. LM1117: A low dropout voltage regulator available in fixed and adjustable output voltage versions.
5. MAX667: A precision voltage regulator with low dropout voltage and high output current capability.

These alternative models offer similar functionality