LT1117CM-3.3#TRPBF

Product Overview

Category

LT1117CM-3.3#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 Output: 3.3V
• Package Type: SOT-223
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

The LT1117CM-3.3#TRPBF voltage regulator has the following specifications:

• Input Voltage Range: 4.2V to 15V
• Output Voltage: 3.3V ± 2%
• Maximum Output Current: 800mA
• Dropout Voltage: 1.2V @ 800mA
• Line Regulation: 0.04% (Typical)
• Load Regulation: 0.1% (Typical)
• Quiescent Current: 5mA (Typical)

Detailed Pin Configuration

The LT1117CM-3.3#TRPBF voltage regulator 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

• Low dropout voltage: The LT1117CM-3.3#TRPBF has a low dropout voltage, allowing it to regulate voltage even when the input voltage is close to the desired output voltage.
• Overcurrent protection: This voltage regulator includes overcurrent protection, preventing damage to the circuit in case of excessive current flow.
• Thermal shutdown: The LT1117CM-3.3#TRPBF is equipped with thermal shutdown protection, which activates when the temperature exceeds a safe threshold, preventing overheating and potential damage.

Advantages and Disadvantages

Advantages

• High accuracy: The LT1117CM-3.3#TRPBF provides a stable and accurate output voltage, ensuring reliable performance of electronic devices.
• Low dropout voltage: This feature allows the regulator to operate efficiently even with low input voltages.
• Overcurrent and thermal protection: These built-in protections enhance the safety and reliability of the circuit.

Disadvantages

• Limited maximum output current: The LT1117CM-3.3#TRPBF has a maximum output current of 800mA, which may not be sufficient for high-power applications.
• SOT-223 package: The package type may require additional considerations during PCB layout and design.

Working Principles

The LT1117CM-3.3#TRPBF is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage from a voltage divider network. The pass transistor adjusts its resistance to maintain a constant output voltage, compensating for changes in the input voltage and load conditions.

Detailed Application Field Plans

The LT1117CM-3.3#TRPBF voltage regulator finds applications in various electronic devices, including:

1. Microcontrollers: Provides a stable power supply for microcontrollers, ensuring proper operation.
2. Sensors: Regulates voltage for sensor modules, maintaining accurate measurements.
3. Communication Systems: Used in communication circuits to stabilize voltage levels and prevent signal distortion.
4. Battery-Powered Devices: Enables efficient power management in battery-powered devices, extending battery life.

Detailed and Complete Alternative Models

1. LM1117-3.3: A popular alternative with similar specifications and pin configuration.
2. LP2985-3.3: Another alternative offering low dropout voltage and high accuracy.
3. MCP1700-3302E: A low-cost alternative with comparable performance characteristics.

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

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