LP2950-02YZ

Product Overview

Category

LP2950-02YZ belongs to the category of low-dropout voltage regulators.

Use

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

Characteristics

• Low dropout voltage: The LP2950-02YZ 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: This voltage regulator provides high precision in regulating the output voltage.
• Low quiescent current: LP2950-02YZ consumes minimal current when in standby mode, making it suitable for battery-powered applications.
• Thermal shutdown protection: It includes built-in thermal shutdown protection to prevent damage due to excessive heat.
• Short-circuit protection: The device is designed to protect against short circuits, ensuring the safety of the connected circuitry.

Package and Quantity

The LP2950-02YZ is available in a TO-92 package. It is typically sold in reels or tubes containing a specific quantity per package.

Specifications

• Input Voltage Range: 4.75V to 30V
• Output Voltage: 2.0V
• Dropout Voltage: 380mV at 100mA
• Quiescent Current: 75µA
• Maximum Output Current: 100mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LP2950-02YZ has three pins: 1. Vin (Input): Connects to the input voltage source. 2. Vout (Output): Provides the regulated output voltage. 3. GND (Ground): Connected to the common ground reference.

Functional Features

• Voltage Regulation: The LP2950-02YZ maintains a constant output voltage regardless of variations in the input voltage or load conditions.
• Low Dropout: It can operate with a very small voltage difference between the input and output, minimizing power dissipation.
• Current Limiting: The device limits the maximum output current to protect the connected circuitry from damage.
• Thermal Protection: Built-in thermal shutdown protection prevents overheating of the regulator.

Advantages

• Low dropout voltage ensures efficient regulation even with low input voltages.
• High accuracy in maintaining the desired output voltage.
• Low quiescent current consumption makes it suitable for battery-powered applications.
• Thermal and short-circuit protection enhance safety and reliability.

Disadvantages

• Limited maximum output current of 100mA may not be sufficient for high-power applications.
• TO-92 package may not be suitable for surface mount technology (SMT) assembly.

Working Principles

The LP2950-02YZ utilizes a voltage reference, error amplifier, pass transistor, and feedback mechanism to regulate the output voltage. It compares the actual output voltage with the desired voltage and adjusts the pass transistor accordingly to maintain a stable output.

Application Field Plans

The LP2950-02YZ is widely used in various electronic devices and systems, including: 1. Battery-powered devices: Portable electronics, such as smartphones, tablets, and wearable devices, benefit from its low quiescent current and efficient voltage regulation. 2. Automotive electronics: It finds application in automotive systems, such as infotainment systems, sensors, and control modules. 3. Industrial equipment: LP2950-02YZ is used in industrial automation, control systems, and instrumentation.

Alternative Models

There are several alternative models available that offer similar functionality to the LP2950-02YZ. Some popular alternatives include: - LM1117-2.0 - LT1763-2.0 - MCP1702-2002

These alternatives provide comparable voltage regulation, dropout characteristics, and package options.

In conclusion, the LP2950-02YZ is a low-dropout voltage regulator with excellent voltage regulation, low quiescent current, and built-in protection features. It finds application in various electronic devices and has alternative models offering similar functionality.