LB1950V-TLM-E

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Overcurrent protection - Thermal shutdown protection

Package: TO-220F-6L

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

Packaging/Quantity: The LB1950V-TLM-E is typically packaged in reels containing 2,500 units per reel.

Specifications

• Input Voltage Range: 4.5V - 40V
• Output Voltage Range: 1.2V - 37V
• Maximum Output Current: 1.5A
• Dropout Voltage: 0.5V @ 1A
• Quiescent Current: 3.5mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The LB1950V-TLM-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
5. NC: No connection pin
6. EN: Enable pin for turning on/off the regulator

Functional Features

• High Efficiency: The LB1950V-TLM-E offers high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of 0.5V at 1A, 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.
• Overcurrent Protection: The LB1950V-TLM-E incorporates overcurrent protection, safeguarding the connected devices from excessive current.
• Thermal Shutdown Protection: In case of overheating, the IC automatically shuts down to prevent damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for versatile applications - Overcurrent and thermal shutdown protection ensure device safety

Disadvantages: - Dropout voltage may limit its use in low voltage applications - Quiescent current of 3.5mA may be relatively high for certain power-sensitive designs

Working Principles

The LB1950V-TLM-E operates as a linear voltage regulator. It regulates the output voltage by comparing the reference voltage with the feedback voltage obtained from the ADJ pin. The internal circuitry adjusts the pass transistor to maintain a stable output voltage despite variations in the input voltage and load conditions.

Detailed Application Field Plans

The LB1950V-TLM-E finds applications in various electronic devices that require regulated power supply, such as: - Consumer electronics - Automotive systems - Industrial equipment - Communication devices

Detailed and Complete Alternative Models

1. LM317T: Adjustable Voltage Regulator, TO-220 package
2. LM7805: Fixed 5V Voltage Regulator, TO-220 package
3. LT1084: Adjustable Voltage Regulator, TO-220 package
4. LM1117: Low Dropout Voltage Regulator, SOT-223 package
5. LM2940: Low Dropout Voltage Regulator, TO-220 package

These alternative models offer similar functionality and can be used as substitutes for the LB1950V-TLM-E depending on specific requirements.

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