LP2950-02BZ TR

Product Overview

Category

The LP2950-02BZ TR belongs to the category of voltage regulators.

Use

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

Characteristics

• Low dropout voltage
• Low quiescent current
• High output voltage accuracy
• Thermal shutdown protection
• Short-circuit current limiting

Package

The LP2950-02BZ TR comes in a small SOT-223 package.

Essence

This voltage regulator is designed to provide a stable output voltage despite fluctuations in input voltage or load conditions.

Packaging/Quantity

The LP2950-02BZ TR is typically packaged in reels, with each reel containing a specific quantity of regulators.

Specifications

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

Detailed Pin Configuration

The LP2950-02BZ TR has three pins:

1. Vin (Pin 1): Input voltage pin
2. GND (Pin 2): Ground pin
3. Vout (Pin 3): Output voltage pin

Functional Features

• Low Dropout Voltage: The LP2950-02BZ TR has a low dropout voltage, allowing it to regulate voltage even when the input voltage is close to the desired output voltage.
• Thermal Shutdown Protection: In case of excessive heat, the regulator shuts down to prevent damage.
• Short-Circuit Current Limiting: It limits the current in case of a short circuit, protecting the regulator and the connected components.

Advantages and Disadvantages

Advantages

• Stable output voltage despite input voltage fluctuations
• Low quiescent current, minimizing power consumption
• Small package size, suitable for space-constrained applications
• Thermal shutdown protection ensures safety

Disadvantages

• Limited output current capacity (100mA)
• Dropout voltage may cause a slight loss of efficiency in certain applications

Working Principles

The LP2950-02BZ TR operates by comparing the output voltage to a reference voltage. It adjusts the pass transistor's resistance to maintain a constant output voltage, compensating for changes in input voltage and load conditions.

Detailed Application Field Plans

The LP2950-02BZ TR finds applications in various fields, including:

1. Battery-powered devices: It ensures a stable voltage supply for portable electronic devices.
2. Automotive electronics: It regulates voltage in automotive systems, protecting sensitive components from voltage fluctuations.
3. Industrial control systems: It provides reliable voltage regulation for control circuits in industrial applications.
4. Communication equipment: It stabilizes voltage in communication devices, ensuring consistent performance.

Detailed and Complete Alternative Models

1. LM1117-2.0: Similar voltage regulator with a TO-220 package and higher output current capacity.
2. LT1763-2.0: Voltage regulator with ultra-low dropout voltage and adjustable output voltage.
3. MCP1702-200: Low-cost voltage regulator with a fixed 2.0V output voltage.

(Note: This list is not exhaustive and other alternative models are available.)

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