SC2902DR2G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Regulator
• Characteristics: Low Dropout, High Current Capability
• Package: SOIC-8
• Essence: Linear Voltage Regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 1.25V to 13.2V
• Output Current: Up to 500mA
• Dropout Voltage: 300mV at 500mA
• Line Regulation: ±0.2% typical
• Load Regulation: ±0.4% typical
• Quiescent Current: 75µA typical
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The SC2902DR2G is an 8-pin integrated circuit with the following pin configuration:

1. GND (Ground)
2. IN (Input Voltage)
3. EN (Enable)
4. NC (No Connection)
5. NC (No Connection)
6. OUT (Output Voltage)
7. NC (No Connection)
8. VREF (Reference Voltage)

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output differentials.
• High current capability allows for powering a wide range of loads.
• Enable pin provides control over the regulator's operation.
• Reference voltage output can be used as a stable reference for other components.

Advantages and Disadvantages

Advantages

• Low dropout voltage minimizes power dissipation.
• High current capability enables the use of the regulator in various applications.
• Enable pin offers flexibility in controlling the regulator's operation.
• Reference voltage output provides additional functionality.

Disadvantages

• Limited output current compared to some other voltage regulators.
• Requires external capacitors for stability and noise reduction.

Working Principles

The SC2902DR2G is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor's resistance to maintain a stable output. The dropout voltage is minimized through the use of a low-resistance pass element.

Detailed Application Field Plans

The SC2902DR2G is suitable for a wide range of applications, including:

1. Battery-powered devices
2. Portable electronics
3. Automotive systems
4. Industrial equipment
5. Communication devices

Detailed and Complete Alternative Models

Some alternative models to the SC2902DR2G include:

1. LM1117-ADJ: Adjustable Voltage Regulator, TO-220 package
2. LT1763-3.3: Low Dropout Regulator, SOT-223 package
3. TPS79633: High Current Voltage Regulator, DFN package
4. MAX6035: Low Noise Voltage Regulator, SOT-23 package

These alternative models offer similar functionality and can be used as replacements based on specific requirements.

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