LT3083IDF#PBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High current, low dropout voltage regulator - Adjustable output voltage - Low quiescent current - Thermal shutdown protection - Current limit protection

Package: DFN-12 (Dual Flat No-Lead)

Essence: The LT3083IDF#PBF is a high-performance voltage regulator IC designed to provide a regulated output voltage with high current capability and low dropout voltage.

Packaging/Quantity: The LT3083IDF#PBF is available in a DFN-12 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 1.2V to 36V
• Output Voltage Range: 0.6V to 34V
• Maximum Output Current: 3A
• Dropout Voltage: 350mV at 3A
• Quiescent Current: 60µA
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3083IDF#PBF has a total of 12 pins. The pin configuration is as follows:

1. IN: Input voltage pin
2. GND: Ground pin
3. ADJ: Adjust pin for setting the output voltage
4. OUT: Output voltage pin

5-12. NC: No connection pins

Functional Features

• High current capability: The LT3083IDF#PBF can deliver up to 3A of continuous output current.
• Low dropout voltage: With a dropout voltage as low as 350mV at 3A, it minimizes power dissipation and improves efficiency.
• Adjustable output voltage: The output voltage can be adjusted from 0.6V to 34V using an external resistor divider.
• Low quiescent current: The device has a low quiescent current of only 60µA, making it suitable for battery-powered applications.
• Thermal shutdown protection: The LT3083IDF#PBF includes thermal shutdown circuitry to prevent damage from excessive heat.
• Current limit protection: It also features current limit protection to safeguard against overcurrent conditions.

Advantages and Disadvantages

Advantages: - High current capability - Low dropout voltage - Adjustable output voltage - Low quiescent current - Thermal and current limit protection

Disadvantages: - Limited number of pins for additional functionality - Requires external components for proper operation

Working Principles

The LT3083IDF#PBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage obtained from the adjust pin. The pass transistor adjusts its resistance to maintain a constant output voltage despite changes in load or input voltage.

Detailed Application Field Plans

The LT3083IDF#PBF can be used in various applications, including: 1. Power supplies for industrial and automotive systems 2. Battery-powered devices 3. Audio amplifiers 4. LED lighting systems 5. Portable electronic devices

Detailed and Complete Alternative Models

1. LT3080: Similar to LT3083IDF#PBF but with a lower maximum output current of 1.1A.
2. LT3081: Similar to LT3083IDF#PBF but with a higher maximum output current of 1.5A.
3. LT3086: Similar to LT3083IDF#PBF but with a higher maximum output current of 5A.

These alternative models offer different current capabilities to suit specific application requirements.

In conclusion, the LT3083IDF#PBF is a high-performance voltage regulator IC with excellent current capability, low dropout voltage, and adjustable output voltage. It is suitable for various applications and offers thermal and current limit protection. Alternative models provide options with different current capabilities.