LT1117IST-3.3#TRPBF

Product Overview

Category

The LT1117IST-3.3#TRPBF belongs to the category of low dropout voltage linear regulators.

Use

It is commonly used to regulate and stabilize the output voltage in various electronic circuits.

Characteristics

• Low dropout voltage: The LT1117IST-3.3#TRPBF has a very low dropout voltage, which means it can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• High accuracy: It provides precise voltage regulation with low output voltage tolerance.
• Current limiting: The device incorporates current limiting circuitry to protect itself and the connected components from excessive current.
• Thermal shutdown: It includes a thermal shutdown feature that prevents the device from overheating and getting damaged.
• Adjustable output voltage: The LT1117IST-3.3#TRPBF allows for adjustable output voltage through external resistors.

Package

The LT1117IST-3.3#TRPBF comes in a surface mount SOT-223 package.

Essence

The essence of the LT1117IST-3.3#TRPBF is its ability to provide stable and regulated output voltage in various electronic applications.

Packaging/Quantity

The LT1117IST-3.3#TRPBF is typically packaged in reels or tubes, and the quantity per package depends on the manufacturer's specifications.

Specifications

• Input Voltage Range: 2.5V to 15V
• Output Voltage: 3.3V
• 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 LT1117IST-3.3#TRPBF has three pins:

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

Functional Features

• Voltage Regulation: The LT1117IST-3.3#TRPBF maintains a stable output voltage of 3.3V regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting circuitry to protect the device and connected components from excessive current.
• Thermal Shutdown: The thermal shutdown feature prevents the device from overheating, ensuring its longevity and reliability.
• Adjustable Output: The output voltage can be adjusted by using external resistors.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• High accuracy provides precise voltage regulation for sensitive electronic components.
• Current limiting protects the device and connected components from damage due to excessive current.
• Thermal shutdown prevents overheating and extends the lifespan of the device.

Disadvantages

• Limited maximum output current of 800mA may not be suitable for high-power applications.
• SOT-223 package may require surface mount soldering expertise.

Working Principles

The LT1117IST-3.3#TRPBF is a low dropout voltage linear regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage. The device also includes current limiting and thermal shutdown features to protect itself and the connected components.

Detailed Application Field Plans

The LT1117IST-3.3#TRPBF finds applications in various electronic circuits where stable and regulated voltage is required. Some common application fields include: - Battery-powered devices - Embedded systems - Consumer electronics - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

1. LM1117-3.3: A similar low dropout voltage linear regulator with a fixed output voltage of 3.3V.
2. LT1763: A low dropout voltage linear regulator with adjustable output voltage and higher maximum output current.
3. ADP3339: A low dropout voltage linear regulator with adjustable output voltage and built-in current limiting.

These alternative models offer similar functionality to the LT1117IST-3.3#TRPBF but may have different specifications and package options.

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