MC33167D2TR4G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Capability
• Package: D2PAK-5
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.5V to 26V
• Output Voltage Range: 1.25V to 20V
• Dropout Voltage: 1.3V (typical)
• Output Current: Up to 1A
• Line Regulation: ±0.05% (typical)
• Load Regulation: ±0.1% (typical)
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The MC33167D2TR4G has a total of five pins:

1. IN: Input voltage pin.
2. GND: Ground reference pin.
3. OUT: Output voltage pin.
4. ADJ: Adjustable pin for setting the output voltage.
5. NC: No connection pin.

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High current capability allows for stable operation under heavy loads.
• Built-in thermal shutdown protection prevents damage due to excessive temperature.
• Short-circuit protection safeguards the regulator and connected components.
• Adjustable output voltage provides flexibility in various applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage enables efficient power conversion. - High current capability supports demanding load requirements. - Thermal shutdown and short-circuit protection enhance reliability. - Adjustable output voltage offers versatility.

Disadvantages: - Limited output current compared to some other voltage regulators. - Higher quiescent current compared to certain low-power regulators. - Requires external components for proper operation.

Working Principles

The MC33167D2TR4G is a linear voltage regulator that operates by maintaining a constant output voltage despite variations in the input voltage and load conditions. It achieves this through a pass transistor that adjusts its resistance to regulate the output voltage. The regulator compares the output voltage with a reference voltage and adjusts the pass transistor accordingly. This feedback loop ensures a stable output voltage.

Detailed Application Field Plans

The MC33167D2TR4G finds applications in various fields, including:

1. Automotive: Used in automotive electronics for voltage regulation in engine control units, infotainment systems, and lighting systems.
2. Industrial: Employed in industrial automation equipment, power supplies, and motor control circuits.
3. Consumer Electronics: Utilized in portable devices, such as smartphones, tablets, and digital cameras, for efficient power management.
4. Telecommunications: Integrated into communication infrastructure equipment, such as routers, switches, and base stations, to maintain stable voltages.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable linear voltage regulator with similar specifications and pin configuration.
2. LT1084: High current, low dropout linear regulator suitable for demanding applications.
3. LM1117: Low dropout voltage regulator available in various fixed output voltage options.
4. L78xx: Series of fixed output voltage regulators with different current ratings.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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