LT3083MPDF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High performance, low dropout voltage, adjustable output voltage, current limiting, thermal shutdown protection
• Package: TO-220, TO-263, DDPAK, D2PAK
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape & Reel, 1000 pieces per reel

Specifications

• Input Voltage Range: 1.2V to 36V
• Output Voltage Range: 0.6V to 34V
• Output Current: Up to 1.5A
• Dropout Voltage: 350mV at 1A load current
• Line Regulation: ±0.02% typical
• Load Regulation: ±0.04% typical
• Quiescent Current: 1.5mA typical
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3083MPDF has three pins:

1. VIN (Pin 1): Input voltage pin.
2. GND (Pin 2): Ground reference pin.
3. VOUT (Pin 3): Output voltage pin.

Functional Features

• Adjustable output voltage through external resistors.
• Low dropout voltage allows operation with small input-output differentials.
• Current limiting protects the device and load from excessive currents.
• Thermal shutdown protection prevents overheating.

Advantages and Disadvantages

Advantages

• High performance and accuracy.
• Wide input and output voltage range.
• Low dropout voltage minimizes power dissipation.
• Current limiting and thermal shutdown protection enhance reliability.
• Multiple package options for flexibility in design.

Disadvantages

• Relatively high quiescent current compared to some other voltage regulators.
• Limited output current capability compared to higher power devices.

Working Principles

The LT3083MPDF is a linear voltage regulator that maintains a stable output voltage regardless of input voltage fluctuations. It achieves this by using a pass transistor to regulate the output voltage based on a feedback mechanism. The adjustable output voltage is set by external resistors connected to the VOUT pin.

Detailed Application Field Plans

The LT3083MPDF is suitable for various applications, including:

1. Power supplies for microcontrollers and digital circuits.
2. Battery-powered devices requiring stable voltage levels.
3. Automotive electronics.
4. Industrial control systems.
5. Audio amplifiers and preamplifiers.
6. Test and measurement equipment.

Detailed and Complete Alternative Models

1. LM317: Adjustable positive voltage regulator with similar specifications.
2. LT1084: High current, adjustable positive voltage regulator.
3. LM1117: Low dropout voltage regulator with fixed output voltage options.
4. LT1763: Ultra-low dropout voltage regulator with adjustable output voltage.

These alternative models offer different features and capabilities, allowing designers to choose the most suitable option for their specific requirements.

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