LT3089IDF

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High current, low dropout linear regulator
• Package: DFN (Dual Flat No-Lead)
• Essence: Provides a regulated output voltage from an unregulated input voltage source
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Input Voltage Range: 1.2V to 36V
• Output Voltage Range: 0.6V to 34.5V
• Maximum Output Current: 800mA
• Dropout Voltage: 350mV
• Quiescent Current: 1.5mA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3089IDF has the following pin configuration:

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

Functional Features

• High current capability with low dropout voltage
• Adjustable output voltage through the ADJ pin
• Built-in thermal shutdown and current limit protection
• Low quiescent current for improved efficiency
• Wide input voltage range for versatile applications

Advantages and Disadvantages

Advantages: - High current capability allows for powering demanding loads - Low dropout voltage minimizes power dissipation - Adjustable output voltage provides flexibility in various applications - Thermal shutdown and current limit protection enhance reliability - Low quiescent current improves overall efficiency

Disadvantages: - Limited maximum output current compared to some other regulators - Dropout voltage may still be relatively high for certain low-power applications

Working Principles

The LT3089IDF is a linear voltage regulator that maintains a stable output voltage regardless of variations in the input voltage. It achieves this by using a pass transistor to regulate the voltage drop between the input and output terminals. The adjustable output voltage is set using an external resistor connected to the ADJ pin.

Detailed Application Field Plans

The LT3089IDF can be used in various applications, including but not limited to: - Power supplies for industrial equipment - Battery-powered devices - Automotive electronics - Audio amplifiers - LED lighting systems

Detailed and Complete Alternative Models

Some alternative models to the LT3089IDF include: - LT3080: Similar functionality with higher maximum output current (1.1A) - LM317: Widely used adjustable linear regulator with lower maximum output current (1.5A) - LT1763: Low dropout linear regulator with fixed output voltage options

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

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