LX1681IDM

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: Dual-In-Line Package (DIP)

Essence: The LX1681IDM is a voltage regulator IC that provides stable and regulated output voltage for various electronic devices.

Packaging/Quantity: The LX1681IDM is available in a standard DIP package. Each package contains one IC.

Specifications

• Input Voltage Range: 4V to 30V
• Output Voltage Range: 1.2V to 28V
• Maximum Output Current: 1.5A
• Dropout Voltage: 0.3V at 1A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX1681IDM has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. ADJ (Adjustment Pin)
5. NC (No Connection)

Functional Features

• High Efficiency: The LX1681IDM utilizes advanced circuitry to achieve high efficiency, minimizing power loss during voltage regulation.
• Low Dropout Voltage: With a low dropout voltage of only 0.3V at 1A, the LX1681IDM can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage of the LX1681IDM can be easily adjusted using an external resistor connected to the ADJ pin, allowing flexibility in different applications.
• Overcurrent Protection: The IC incorporates overcurrent protection, automatically limiting the output current to prevent damage to the device or connected components.
• Thermal Shutdown Protection: To prevent overheating, the LX1681IDM features thermal shutdown protection, which shuts down the regulator temporarily if the temperature exceeds a safe threshold.

Advantages and Disadvantages

Advantages: - High efficiency results in reduced power consumption. - Adjustable output voltage allows for versatile applications. - Overcurrent and thermal shutdown protection enhance reliability and safety.

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications. - Dropout voltage of 0.3V may cause a slight voltage drop across the regulator.

Working Principles

The LX1681IDM 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 regardless of changes in the input voltage or load conditions.

Detailed Application Field Plans

The LX1681IDM is commonly used in various electronic devices that require a stable and regulated power supply. Some typical application fields include:

1. Consumer Electronics: Used in televisions, audio systems, and gaming consoles to provide reliable power to the internal circuitry.
2. Automotive Electronics: Employed in automotive infotainment systems, navigation units, and dashboard displays to ensure consistent voltage supply.
3. Industrial Automation: Integrated into control systems, motor drives, and PLCs to deliver stable power for precise operation.
4. Communication Equipment: Utilized in routers, switches, and network devices to maintain a steady voltage for uninterrupted data transmission.

Detailed and Complete Alternative Models

1. LM317: A popular adjustable voltage regulator IC with similar characteristics and package options.
2. LT1084: Offers higher maximum output current and lower dropout voltage compared to the LX1681IDM.
3. LM7805: Fixed output voltage regulator with a maximum output current of 1A, suitable for low-power applications.

These alternative models provide similar functionality and can be considered as substitutes for the LX1681IDM based on specific requirements.

Word count: 510 words