LM2425TE/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High efficiency - Low dropout voltage - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: TO-220

Essence: The LM2425TE/NOPB is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The LM2425TE/NOPB is typically sold in reels of 250 units.

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage Range: 1.25V to 37V
• Maximum Output Current: 2.5A
• Dropout Voltage: 0.5V at 2.5A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM2425TE/NOPB has the following pin configuration:

```

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| | --| VIN GND |-- --| VOUT ADJ |-- |___________| ```

• VIN: Input voltage pin
• GND: Ground pin
• VOUT: Output voltage pin
• ADJ: Adjustable pin for setting the output voltage

Functional Features

1. High Efficiency: The LM2425TE/NOPB offers high efficiency, minimizing power loss and maximizing energy utilization.
2. Low Dropout Voltage: It has a low dropout voltage, ensuring stable output even when the input voltage is close to the desired output voltage.
3. Adjustable Output Voltage: The adjustable pin allows users to set the desired output voltage within the specified range.
4. Overcurrent Protection: The IC incorporates overcurrent protection, safeguarding the connected devices from excessive current flow.
5. Thermal Shutdown Protection: It includes thermal shutdown protection, preventing overheating and potential damage to the IC.

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings. - Adjustable output voltage provides flexibility for various applications. - Overcurrent and thermal shutdown protection enhance device safety.

Disadvantages: - Limited maximum output current (2.5A) may not be suitable for high-power applications. - Dropout voltage of 0.5V at 2.5A may cause a slight voltage drop in certain scenarios.

Working Principles

The LM2425TE/NOPB operates as a linear voltage regulator. It regulates the output voltage by comparing the reference voltage with the feedback voltage obtained from the adjustable pin. The internal circuitry adjusts the pass transistor to maintain a stable output voltage despite variations in the input voltage or load conditions.

Detailed Application Field Plans

The LM2425TE/NOPB finds applications in various electronic devices that require a stable and adjustable output voltage. Some common application fields include:

1. Power Supplies: The IC can be used in power supply circuits to regulate the voltage supplied to microcontrollers, sensors, and other components.
2. Battery Charging: It can be employed in battery charging circuits to ensure a constant and controlled charging voltage.
3. Audio Amplifiers: The LM2425TE/NOPB can be utilized in audio amplifier circuits to provide a stable voltage for powering the amplification stages.
4. LED Lighting: It is suitable for LED lighting applications where a regulated voltage is necessary to drive the LEDs efficiently.

Detailed and Complete Alternative Models

1. LM317T: A popular alternative with similar characteristics and adjustable output voltage.
2. LM7805: A fixed-output voltage regulator with a 5V output.
3. LT1083CP: A high-current adjustable voltage regulator capable of delivering up to 7.5A.

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

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