LP2951-03BN

Product Overview

Category

LP2951-03BN 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
• Wide input voltage range
• High output voltage accuracy
• Thermal shutdown protection

Package

LP2951-03BN is available in a standard TO-92 package.

Essence

The essence of LP2951-03BN lies in its ability to provide a stable and regulated output voltage despite fluctuations in the input voltage.

Packaging/Quantity

LP2951-03BN is typically packaged in reels or tubes, with a quantity of 1000 units per reel/tube.

Specifications

• Input Voltage Range: 4.2V to 30V
• Output Voltage: 3.3V
• Dropout Voltage: 0.5V (typical)
• Quiescent Current: 75µA (typical)
• Output Current: 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

LP2951-03BN 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 ensures efficient regulation even with low input-output voltage differentials.
• Low quiescent current minimizes power consumption when the load is light.
• Wide input voltage range allows for flexibility in various applications.
• High output voltage accuracy ensures precise voltage regulation.
• Thermal shutdown protection prevents damage due to excessive temperature.

Advantages

• Reliable voltage regulation under varying input conditions.
• Low power consumption.
• Compact and easy-to-use package.
• Suitable for a wide range of applications.
• Provides stable output voltage.

Disadvantages

• Limited output current capacity (100mA).
• Not suitable for high-power applications.
• Requires external components for certain configurations.

Working Principles

LP2951-03BN operates based on the principle of feedback control. It compares the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage, compensating for changes in the input voltage.

Detailed Application Field Plans

LP2951-03BN finds applications in various fields, including but not limited to:

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

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LP2951-03BN are:

1. LM1117-3.3: Similar voltage regulator with higher output current capacity.
2. LT1763-3.3: Low dropout voltage regulator with adjustable output voltage.
3. MCP1703-3302E: Cost-effective voltage regulator with low quiescent current.

These alternative models offer similar functionality and can be chosen based on specific requirements and constraints.

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