LP2950-03BZ TR

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - Low quiescent current - Thermal shutdown protection - Short circuit current limit - Output current up to 100 mA

Package: TO-92

Essence: The LP2950-03BZ TR is a low dropout voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: Available in tape and reel packaging with 2,500 units per reel.

Specifications

• Input Voltage Range: 4.75V to 30V
• Output Voltage: 3.0V
• Dropout Voltage: 0.5V (typical)
• Quiescent Current: 75µA (typical)
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LP2950-03BZ TR has three pins:

1. Input (IN): Connects to the input voltage source.
2. Ground (GND): Common ground reference.
3. Output (OUT): Provides the regulated output voltage.

Functional Features

• Low Dropout Voltage: The LP2950-03BZ TR has a low dropout voltage of only 0.5V, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Low Quiescent Current: With a typical quiescent current of 75µA, the IC minimizes power consumption when in standby or idle mode.
• Thermal Shutdown Protection: The device includes thermal shutdown protection, which prevents damage due to excessive temperature.
• Short Circuit Current Limit: The LP2950-03BZ TR has a built-in short circuit current limit to protect the device and connected components in case of a short circuit.
• Output Current Capability: It can provide an output current of up to 100mA, making it suitable for low-power applications.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - Low quiescent current minimizes power consumption during standby or idle mode. - Thermal shutdown protection prevents damage due to excessive temperature. - Short circuit current limit protects the device and connected components.

Disadvantages: - Limited output current capability may not be suitable for high-power applications.

Working Principles

The LP2950-03BZ TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LP2950-03BZ TR is commonly used in various electronic devices and applications, including but not limited to: - Battery-powered devices - Portable electronics - Automotive electronics - Industrial control systems - Embedded systems

Detailed and Complete Alternative Models

1. LM1117-3.3V: A similar voltage regulator IC with a fixed output voltage of 3.3V.
2. LT1763-3.3: A low dropout voltage regulator IC with a fixed output voltage of 3.3V and higher output current capability.
3. MCP1703-3002E: Another low dropout voltage regulator IC with a fixed output voltage of 3.0V and higher output current capability.

These alternative models offer similar functionality and can be considered as substitutes for the LP2950-03BZ TR depending on specific requirements.

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