LT1129CST-5#TRPBF

Product Overview

Category

The LT1129CST-5#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate and stabilize voltage levels.

Characteristics

• Voltage regulation: The LT1129CST-5#TRPBF provides a stable output voltage, ensuring consistent performance of connected devices.
• Low dropout voltage: This regulator has a low dropout voltage, allowing it to operate efficiently even when the input voltage is close to the desired output voltage.
• High current capability: The LT1129CST-5#TRPBF can handle high currents, making it suitable for applications that require significant power delivery.
• Thermal shutdown protection: It incorporates thermal shutdown protection, which prevents damage due to excessive heat.

Package

The LT1129CST-5#TRPBF comes in a small surface-mount package, making it suitable for compact circuit designs.

Essence

The essence of the LT1129CST-5#TRPBF lies in its ability to provide reliable and regulated voltage output, ensuring the proper functioning of electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Input voltage range: 2.7V to 15V
• Output voltage: 5V
• Maximum output current: 800mA
• Dropout voltage: 300mV at 800mA
• Line regulation: ±0.02%
• Load regulation: ±0.1%
• Operating temperature range: -40°C to 125°C

Detailed Pin Configuration

The LT1129CST-5#TRPBF has the following pin configuration:

1. VIN (Input voltage)
2. GND (Ground)
3. VOUT (Output voltage)

Functional Features

• Voltage regulation: The LT1129CST-5#TRPBF maintains a constant output voltage regardless of changes in the input voltage or load conditions.
• Current limiting: It incorporates current limiting protection to prevent excessive current flow and protect connected devices.
• Thermal shutdown: In case of excessive temperature, the regulator shuts down to prevent damage.

Advantages and Disadvantages

Advantages

• High current capability allows it to power demanding electronic circuits.
• Low dropout voltage ensures efficient operation even with low input-output voltage differentials.
• Thermal shutdown protection prevents overheating and subsequent damage.

Disadvantages

• Limited output voltage options, as it only provides a fixed 5V output.
• Relatively high quiescent current compared to some other voltage regulators.

Working Principles

The LT1129CST-5#TRPBF operates based on the principle of feedback control. It compares the output voltage to a reference voltage and adjusts the internal circuitry to maintain a stable output voltage. This is achieved through a combination of error amplification, voltage reference, and pass transistor control.

Detailed Application Field Plans

The LT1129CST-5#TRPBF finds applications in various fields, including:

1. Power supply modules for microcontrollers and digital circuits.
2. Battery-powered devices requiring regulated voltage levels.
3. Automotive electronics, such as infotainment systems and engine control units.
4. Industrial automation systems, where stable voltage is crucial for reliable operation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LT1129CST-5#TRPBF include:

1. LM317T: A popular adjustable voltage regulator with a wide input voltage range.
2. L7805CV: Fixed 5V voltage regulator with high current capability.
3. ADP3339AKC-5: Low dropout voltage regulator with adjustable output voltage.

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

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