LB1950V-MPB-E

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High precision - Low dropout voltage - Wide input voltage range - Current limiting and thermal shutdown protection - Adjustable output voltage - Compact size

Package: MPB (Mini Power Block)

Essence: The LB1950V-MPB-E is a voltage regulator IC designed to provide stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The LB1950V-MPB-E is available in a compact MPB package. It is typically sold in reels containing 1000 units.

Specifications

• Input Voltage Range: 2.5V - 18V
• Output Voltage Range: 1.2V - 15V
• Dropout Voltage: 0.3V @ 500mA
• Output Current: Up to 1A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LB1950V-MPB-E has the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin
4. ADJ: Adjustable pin for setting the output voltage

Functional Features

• High Precision: The LB1950V-MPB-E provides precise and stable output voltage regulation, ensuring reliable performance of connected devices.
• Low Dropout Voltage: With a low dropout voltage of only 0.3V, the IC can maintain a stable output even when the input voltage is close to the desired output voltage.
• Wide Input Voltage Range: The IC can accept a wide range of input voltages, making it suitable for various applications.
• Current Limiting and Thermal Shutdown Protection: The LB1950V-MPB-E incorporates built-in protection mechanisms to prevent damage from excessive current or high temperatures.
• Adjustable Output Voltage: The output voltage can be easily adjusted using an external resistor connected to the ADJ pin.
• Compact Size: The MPB package offers a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages: - High precision regulation - Low dropout voltage - Wide input voltage range - Built-in protection features - Adjustable output voltage - Compact size

Disadvantages: - Limited output current capacity (up to 1A)

Working Principles

The LB1950V-MPB-E operates as a linear voltage regulator. It uses a reference voltage and feedback mechanism to maintain a stable output voltage regardless of changes in the input voltage or load conditions. The IC adjusts the pass transistor's resistance to regulate the output voltage.

Detailed Application Field Plans

The LB1950V-MPB-E is commonly used in various electronic devices that require stable and regulated power supply voltages. Some typical application fields include:

1. Mobile devices: Smartphones, tablets, portable media players
2. Consumer electronics: Digital cameras, portable gaming consoles
3. Automotive electronics: Infotainment systems, navigation devices
4. Industrial equipment: Test and measurement instruments, control systems
5. IoT devices: Wearables, smart home devices

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator with similar characteristics and functionality.
2. LT1083: A high-current linear voltage regulator suitable for power-hungry applications.
3. LM1117: A low dropout voltage regulator available in various fixed output voltage options.

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

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