LP2950-02YZ TR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - High output voltage accuracy - Thermal shutdown protection - Short circuit current limit

Package: TO-220

Essence: The LP2950-02YZ TR is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in electronic devices to regulate and maintain a constant voltage level.

Packaging/Quantity: The LP2950-02YZ TR is available in a TO-220 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 4.2V to 30V
• Output Voltage: 2.0V
• Dropout Voltage: 380mV at 100mA
• Quiescent Current: 75µA
• Output Current: 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LP2950-02YZ TR has three pins:

1. Input (IN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (OUT): This pin provides the regulated output voltage.

Functional Features

• Low Dropout Voltage: The LP2950-02YZ TR has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: The IC consumes very low quiescent current, making it suitable for battery-powered applications where power efficiency is crucial.
• High Output Voltage Accuracy: The LP2950-02YZ TR provides high output voltage accuracy, ensuring a stable and precise voltage level.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• Short Circuit Current Limit: The LP2950-02YZ TR has built-in short circuit current limiting, protecting the device from damage in case of a short circuit.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with low input voltages. - Low quiescent current makes it suitable for battery-powered applications. - High output voltage accuracy provides a stable voltage supply. - Thermal shutdown protection prevents overheating and damage. - Short circuit current limit protects the device from damage during short circuits.

Disadvantages: - Limited output current capability (100mA). - Restricted input voltage range (4.2V to 30V).

Working Principles

The LP2950-02YZ TR is a linear voltage 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 constant output voltage. The dropout voltage is minimized by using a PNP pass transistor.

Detailed Application Field Plans

The LP2950-02YZ TR can be used in various applications, including but not limited to: 1. Battery-powered devices 2. Portable electronic devices 3. Automotive electronics 4. Industrial control systems 5. Power management circuits

Detailed and Complete Alternative Models

1. LM1117-2.0
2. LT1763-2.0
3. MCP1702-2002E/TO

These alternative models offer similar functionality and specifications to the LP2950-02YZ TR and can be considered as alternatives depending on specific requirements.

In conclusion, the LP2950-02YZ TR is a voltage regulator IC that provides stable output voltage with low dropout. Its low quiescent current, high output voltage accuracy, and thermal protection make it suitable for various applications. However, its limited output current capability and input voltage range should be taken into consideration. Alternative models such as LM1117-2.0, LT1763-2.0, and MCP1702-2002E/TO can also be considered for similar applications.