LE75183BFQCT

Product Overview

Category: Integrated Circuit (IC)

Use: The LE75183BFQCT is a high-performance voltage regulator designed for use in various electronic devices. It provides stable and regulated power supply to ensure the proper functioning of the connected components.

Characteristics: - High efficiency - Low dropout voltage - Wide input voltage range - Overcurrent and thermal protection - Adjustable output voltage

Package: The LE75183BFQCT is available in a compact and durable surface-mount package, making it suitable for space-constrained applications.

Essence: This voltage regulator is an essential component in electronic circuits as it ensures that the voltage supplied to other components remains constant, regardless of fluctuations in the input voltage.

Packaging/Quantity: The LE75183BFQCT is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.5V - 18V
• Output Voltage Range: 1.2V - 15V
• Output Current: Up to 3A
• Dropout Voltage: 0.25V @ 3A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LE75183BFQCT has the following pin configuration:

1. VIN (Input Voltage)
2. GND (Ground)
3. VOUT (Output Voltage)
4. ADJ (Adjustment Pin)

Functional Features

• High Efficiency: The LE75183BFQCT utilizes advanced circuitry to achieve high efficiency, minimizing power loss and maximizing battery life in portable devices.
• Low Dropout Voltage: With a low dropout voltage of only 0.25V at 3A, this voltage regulator can maintain a stable output voltage even when the input voltage is close to the desired output voltage.
• Overcurrent and Thermal Protection: The IC incorporates built-in protection mechanisms to safeguard against overcurrent and excessive heat, ensuring reliable operation and preventing damage to the connected components.
• Adjustable Output Voltage: The output voltage of the LE75183BFQCT can be easily adjusted using an external resistor, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input voltage range allows for compatibility with different power sources - Overcurrent and thermal protection enhance reliability and safety - Adjustable output voltage provides versatility

Disadvantages: - Dropout voltage may limit its use in applications with low input voltages - Quiescent current of 75µA may not be suitable for ultra-low-power devices

Working Principles

The LE75183BFQCT operates based on the principle of linear voltage regulation. It uses a feedback mechanism to compare the output voltage with a reference voltage and adjusts the internal circuitry to maintain a constant output voltage despite variations in the input voltage.

When the input voltage exceeds the desired output voltage, the regulator reduces the voltage difference by controlling the flow of current through a pass transistor. Conversely, if the input voltage drops below the desired output voltage, the regulator increases the current flow to compensate and maintain a stable output voltage.

Detailed Application Field Plans

The LE75183BFQCT finds applications in various electronic devices that require a stable and regulated power supply. Some potential application fields include:

1. Mobile Devices: Smartphones, tablets, and portable media players benefit from the high efficiency and low dropout voltage of the LE75183BFQCT, extending battery life and ensuring consistent performance.
2. Automotive Electronics: The wide input voltage range and overcurrent protection make this voltage regulator suitable for automotive applications, such as infotainment systems, navigation devices, and lighting control modules.
3. Industrial Equipment: The LE75183BFQCT can be used in industrial automation systems, motor control units, and power management modules to provide reliable and efficient power supply.

Detailed and Complete Alternative Models

1. LM317: A widely used adjustable voltage regulator with similar characteristics and pin configuration.
2. LT1084: Offers higher output current capability and lower dropout voltage compared to the LE75183BFQCT.
3. TPS7A4700: Provides ultra-low quiescent current and high PSRR (Power Supply Rejection Ratio) for demanding low-power applications.

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

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