LP2951-02BM

Product Overview

Category

The LP2951-02BM belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• Low quiescent current
• Wide input voltage range
• High output voltage accuracy
• Thermal shutdown protection

Package

The LP2951-02BM comes in a small outline package (SOT-23) which is suitable for surface mount applications.

Essence

The essence of LP2951-02BM lies in its ability to provide stable and regulated voltage output, ensuring reliable performance of electronic devices.

Packaging/Quantity

The LP2951-02BM is typically packaged in reels or tubes, with a quantity of 3000 units per reel/tube.

Specifications

• Input Voltage Range: 4.2V to 30V
• Output Voltage Range: 1.24V to 29V
• Dropout Voltage: 380mV at 100mA
• Quiescent Current: 75µA
• Output Current: 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LP2951-02BM has three pins:

1. Vin: This pin is used to connect the input voltage.
2. Vout: This pin provides the regulated output voltage.
3. GND: This pin is connected to the ground reference.

Functional Features

• Low dropout voltage ensures efficient regulation even with low input-output voltage differentials.
• Low quiescent current minimizes power consumption when the device is idle.
• Wide input voltage range allows flexibility in various applications.
• High output voltage accuracy ensures precise regulation.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages

• Compact SOT-23 package enables space-saving and surface mount compatibility.
• Stable and reliable voltage regulation for electronic circuits.
• Low power consumption enhances energy efficiency.
• Wide input voltage range accommodates diverse power sources.

Disadvantages

• Limited output current capability (100mA).
• Dropout voltage may cause a slight decrease in efficiency.

Working Principles

The LP2951-02BM is a linear voltage regulator that utilizes a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with the feedback voltage, adjusting the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LP2951-02BM finds applications in various fields, including:

1. Battery-powered devices: Provides regulated voltage for portable electronics.
2. Automotive electronics: Ensures stable voltage supply for automotive systems.
3. Industrial control systems: Regulates voltage in control circuitry.
4. Communication equipment: Maintains consistent voltage levels for reliable operation.

Detailed and Complete Alternative Models

Some alternative models to the LP2951-02BM include:

1. LM317: A popular adjustable voltage regulator with higher output current capability.
2. LT1086: Offers lower dropout voltage and higher output current compared to LP2951-02BM.
3. LM1117: Provides fixed voltage outputs with low dropout voltage.

These alternative models offer different features and specifications, allowing users to choose based on their specific requirements.

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