LT3091MPR#TRPBF

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low Dropout Voltage - High Output Current - Adjustable Output Voltage - Thermal Shutdown Protection

Package: MPR (Metal Power Resistor) Package

Essence: The LT3091MPR#TRPBF is a voltage regulator IC designed to provide a stable output voltage from a higher input voltage. It offers low dropout voltage, high output current capability, and adjustable output voltage, making it suitable for various applications.

Packaging/Quantity: The LT3091MPR#TRPBF is available in a standard MPR package. Each package contains one unit of the IC.

Specifications

• Input Voltage Range: 1.8V to 40V
• Output Voltage Range: 0.6V to 20V
• Dropout Voltage: 300mV at 1A Load
• Maximum Output Current: 1.5A
• Quiescent Current: 50µA
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LT3091MPR#TRPBF has the following pin configuration:

1. VIN: Input Voltage Pin
2. GND: Ground Pin
3. ADJ: Output Voltage Adjustment Pin
4. VOUT: Output Voltage Pin

Functional Features

• Low dropout voltage allows efficient regulation even with small input-output voltage differentials.
• High output current capability enables the IC to power devices with demanding current requirements.
• Adjustable output voltage provides flexibility in setting the desired voltage level.
• Thermal shutdown protection prevents the IC from overheating and ensures safe operation.

Advantages and Disadvantages

Advantages: - Wide input voltage range allows compatibility with various power sources. - High output current capability makes it suitable for powering a wide range of devices. - Adjustable output voltage provides versatility in different applications. - Thermal shutdown protection ensures safe operation even under high temperature conditions.

Disadvantages: - Limited maximum output current compared to some other voltage regulator ICs. - Requires external components for proper operation, which may increase the overall circuit complexity.

Working Principles

The LT3091MPR#TRPBF operates as a linear voltage regulator. It regulates the output voltage by maintaining a constant voltage drop across its internal pass transistor. The adjustable output voltage is set using an external resistor connected to the ADJ pin. The IC continuously monitors the input and output voltages to ensure stable regulation. In case of excessive heat, the thermal shutdown protection feature activates, temporarily disabling the IC until it cools down.

Detailed Application Field Plans

The LT3091MPR#TRPBF can be used in various applications, including but not limited to: - Power supply modules - Battery-powered devices - Industrial control systems - Automotive electronics - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3091MPR#TRPBF are: - LM317: Adjustable Voltage Regulator IC with higher maximum output current. - LT3080: Adjustable Voltage Regulator IC with lower dropout voltage. - LM1117: Fixed Voltage Regulator IC with various fixed output voltage options.

These alternative models can be considered based on specific requirements and design constraints.

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