LP2951-03YN

Product Overview

Category

LP2951-03YN belongs to the category of voltage regulators.

Use

It is primarily used for regulating and stabilizing voltage in electronic circuits.

Characteristics

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

Package

LP2951-03YN comes in a small outline package (SOP) with 8 pins.

Essence

The essence of LP2951-03YN lies in its ability to provide a stable and regulated output voltage, ensuring reliable operation of electronic devices.

Packaging/Quantity

LP2951-03YN is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Input Voltage Range: 4.2V to 30V
• Output Voltage Range: 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

1. GND (Ground)
2. VOUT (Output Voltage)
3. VIN (Input Voltage)
4. NC (No Connection)
5. NC (No Connection)
6. SHDN (Shutdown)
7. NC (No Connection)
8. ADJ (Adjust)

Functional Features

• Low Dropout Voltage: LP2951-03YN exhibits a low dropout voltage, minimizing power dissipation and maximizing efficiency.
• Thermal Shutdown Protection: It incorporates thermal shutdown protection, preventing damage due to excessive temperature.
• Short-Circuit Current Limiting: LP2951-03YN has built-in short-circuit current limiting, safeguarding the device and the connected circuitry.

Advantages

• High output voltage accuracy ensures precise regulation.
• Low quiescent current minimizes power consumption in standby mode.
• Compact SOP package allows for space-efficient integration into electronic designs.

Disadvantages

• Limited output current of 100mA may not be sufficient for high-power applications.
• Input voltage range is restricted to 4.2V to 30V, limiting its compatibility with certain systems.

Working Principles

LP2951-03YN operates based on the principle of a linear voltage regulator. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By comparing the output voltage with a reference voltage, it continuously adjusts the pass transistor to maintain a stable output voltage despite variations in the input voltage.

Detailed Application Field Plans

LP2951-03YN finds extensive application 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

Some alternative models that offer similar functionality to LP2951-03YN are: - LM1117-3.3 - LT1763-3.3 - MCP1703-3302E/DB

These alternatives can be considered based on specific requirements and design constraints.

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