LP2950-03BZ

Product Overview

Category

LP2950-03BZ 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 LP2950-03BZ has a very low dropout voltage, which means it can regulate voltage even when the input voltage is close to the desired output voltage.
• High accuracy: It provides precise voltage regulation, ensuring stable and reliable performance.
• Low quiescent current: The regulator consumes minimal current when not delivering power, making it suitable for battery-powered applications.
• Thermal shutdown protection: LP2950-03BZ includes built-in thermal shutdown protection, preventing damage due to excessive heat.
• Short-circuit protection: It offers protection against short circuits, safeguarding the circuitry from potential damage.

Package

The LP2950-03BZ comes in a small surface-mount package, making it suitable for compact electronic devices.

Essence

The essence of LP2950-03BZ lies in its ability to provide stable and regulated voltage output with low dropout voltage and high accuracy.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 4.2V to 30V
• Output Voltage: 3.3V
• Dropout Voltage: 0.1V (typical)
• Quiescent Current: 75µA (typical)
• Maximum Output Current: 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LP2950-03BZ has three pins:

1. Vin (Input): This pin is connected to the input voltage source.
2. Vout (Output): The regulated output voltage is obtained from this pin.
3. GND (Ground): This pin is connected to the ground reference of the circuit.

Functional Features

• Voltage Regulation: The LP2950-03BZ regulates the input voltage to a stable and precise output voltage of 3.3V.
• Low Dropout: It can maintain regulation even when the input voltage is very close to the desired output voltage.
• Thermal Shutdown Protection: The regulator includes thermal shutdown protection, preventing damage due to excessive heat.
• Short-Circuit Protection: It offers protection against short circuits, ensuring the safety of the circuitry.

Advantages and Disadvantages

Advantages

• Low dropout voltage ensures efficient voltage regulation.
• High accuracy provides stable and reliable performance.
• Low quiescent current makes it suitable for battery-powered applications.
• Thermal shutdown protection prevents damage from overheating.
• Short-circuit protection safeguards the circuitry.

Disadvantages

• Limited maximum output current of 100mA may not be sufficient for high-power applications.
• Input voltage range is limited to 4.2V to 30V.

Working Principles

The LP2950-03BZ operates based on the principle of a low-dropout voltage regulator. It uses a pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to maintain a constant output voltage. The regulator continuously monitors the output voltage and adjusts the pass transistor accordingly to ensure stability.

Detailed Application Field Plans

The LP2950-03BZ finds applications in various electronic devices and systems, including but not limited to: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Communication equipment

Detailed and Complete Alternative Models

1. LM1117-3.3: This low-dropout voltage regulator offers similar specifications and features as the LP2950-03BZ.
2. LT1763-3.3: Another alternative with comparable characteristics, suitable for voltage regulation applications.
3. ADP3339-3.3: This voltage regulator provides low dropout and high accuracy, making it a viable alternative to the LP2950-03BZ.

These alternative models can be considered based on specific requirements and availability.

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