LT1117CST-5#TRPBF

Product Overview

Category

The LT1117CST-5#TRPBF belongs to the category of voltage regulators.

Use

This product is commonly used in electronic circuits to regulate voltage levels and provide a stable power supply.

Characteristics

• Low dropout voltage: The LT1117CST-5#TRPBF has a low dropout voltage, which means it can regulate voltage even when the input voltage is close to the desired output voltage.
• High current capability: This voltage regulator can handle high currents, making it suitable for applications that require significant power.
• Thermal overload protection: The LT1117CST-5#TRPBF is equipped with thermal overload protection, ensuring safe operation even under high temperature conditions.
• Adjustable output voltage: The output voltage of this regulator can be adjusted within a certain range, providing flexibility for different applications.

Package

The LT1117CST-5#TRPBF comes in a small surface-mount package (SOT-223), which allows for easy integration into circuit boards.

Essence

The essence of the LT1117CST-5#TRPBF lies in its ability to regulate voltage levels efficiently and reliably, ensuring stable power supply for electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.5V - 20V
• Output Voltage Range: 1.25V - 18V
• Dropout Voltage: 1.2V (typical)
• Maximum Output Current: 800mA
• Line Regulation: ±0.2% (typical)
• Load Regulation: ±0.4% (typical)
• Operating Temperature Range: -40°C to 125°C

Detailed Pin Configuration

The LT1117CST-5#TRPBF has three pins:

1. VIN (Pin 1): This pin is used to connect the input voltage.
2. VOUT (Pin 2): This pin provides the regulated output voltage.
3. GND (Pin 3): This pin is connected to the ground reference.

Functional Features

• Voltage Regulation: The LT1117CST-5#TRPBF maintains a stable output voltage regardless of changes in the input voltage or load conditions.
• Current Limiting: This voltage regulator incorporates current limiting circuitry to protect against excessive current draw.
• Thermal Shutdown: In case of high temperature, the LT1117CST-5#TRPBF shuts down to prevent damage and resumes operation once the temperature returns to a safe level.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• High current capability makes it suitable for power-hungry applications.
• Thermal overload protection enhances reliability and safety.
• Adjustable output voltage allows for versatility in various circuit designs.

Disadvantages

• Limited maximum output current compared to some other voltage regulators on the market.
• SOT-223 package may require additional space on the circuit board compared to smaller packages.

Working Principles

The LT1117CST-5#TRPBF operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, the desired output voltage is achieved.

Detailed Application Field Plans

The LT1117CST-5#TRPBF finds applications in various electronic devices and systems, including but not limited to: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices requiring stable voltage levels - Audio amplifiers and signal processing circuits - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. LM317: A widely used adjustable voltage regulator with similar characteristics to the LT1117CST-5#TRPBF.
2. LDO50V: A low dropout voltage regulator capable of handling higher input voltages.
3. LT1763: A high-performance, low dropout linear regulator suitable for demanding applications.

These alternative models offer similar functionality and can be considered as substitutes for the LT1117CST-5#TRPBF depending on specific requirements.

In conclusion, the LT1117CST-5#TRPBF is a versatile voltage regulator that provides stable power supply in various electronic applications. Its low dropout voltage, high current capability, and thermal protection make it a reliable choice for designers seeking efficient voltage regulation.