LT3021IS8-1.8#PBF

Product Overview

Category

The LT3021IS8-1.8#PBF belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• High output voltage accuracy
• Low quiescent current
• Thermal shutdown protection
• Adjustable output voltage

Package

The LT3021IS8-1.8#PBF comes in an 8-pin SOIC package.

Essence

This voltage regulator is designed to provide a stable and accurate output voltage for various electronic applications.

Packaging/Quantity

The LT3021IS8-1.8#PBF is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input Voltage Range: 2.5V to 20V
• Output Voltage: 1.8V
• Dropout Voltage: 300mV at 100mA
• Quiescent Current: 40µA
• Line Regulation: ±0.02%
• Load Regulation: ±0.1%
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT3021IS8-1.8#PBF has the following pin configuration:

1. IN: Input voltage pin
2. GND: Ground pin
3. ADJ: Adjust pin (for setting the output voltage)
4. NC: No connection
5. NC: No connection
6. NC: No connection
7. VOUT: Output voltage pin
8. NC: No connection

Functional Features

• Low dropout voltage ensures efficient regulation even when the input voltage is close to the desired output voltage.
• High output voltage accuracy provides precise voltage regulation for sensitive electronic components.
• Low quiescent current minimizes power consumption when the load is light.
• Thermal shutdown protection prevents damage to the regulator during excessive temperature conditions.
• Adjustable output voltage allows flexibility in meeting specific application requirements.

Advantages and Disadvantages

Advantages

• High output voltage accuracy ensures reliable performance of electronic circuits.
• Low dropout voltage enables efficient regulation even with low input voltages.
• Thermal shutdown protection safeguards the regulator from overheating.
• Adjustable output voltage provides versatility for various applications.

Disadvantages

• Limited output voltage options (only 1.8V in this model).
• Relatively high quiescent current compared to some other voltage regulators.
• The package size may not be suitable for space-constrained designs.

Working Principles

The LT3021IS8-1.8#PBF operates based on a linear voltage regulation principle. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a stable output voltage, regardless of changes in the input voltage or load conditions.

Detailed Application Field Plans

The LT3021IS8-1.8#PBF finds applications in various fields, including:

1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial automation: Ensures stable voltage supply for control systems, sensors, and actuators.
3. Automotive electronics: Regulates voltage for automotive components like infotainment systems, lighting, and engine control units.
4. Telecommunications: Used in networking equipment, routers, and modems to maintain consistent voltage levels.
5. Medical devices: Provides precise voltage regulation for medical instruments and implants.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT3021IS8-1.8#PBF include:

1. LM317T: A popular adjustable voltage regulator with a wide input voltage range.
2. LT1084CP-5: Fixed output voltage regulator with low dropout voltage and high current capability.
3. LM1117-3.3: Fixed 3.3V voltage regulator with low quiescent current and thermal shutdown protection.

These alternative models can be considered based on specific application requirements and desired specifications.

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