LX7176CLQ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Regulator
• Characteristics: High-performance, low-dropout linear regulator
• Package: CLQ package (specific dimensions and pin configuration provided below)
• Essence: Provides stable output voltage with minimal power dissipation
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Input Voltage Range: 2.5V to 7V
• Output Voltage Range: 1.2V to 5.5V
• Maximum Output Current: 500mA
• Dropout Voltage: 200mV at 500mA
• Quiescent Current: 75µA
• Line Regulation: ±0.02%/V
• Load Regulation: ±0.05%/A
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX7176CLQ is a 5-pin IC with the following pin configuration:

1. VIN: Input voltage pin
2. GND: Ground pin
3. EN: Enable pin (active high)
4. FB: Feedback pin for setting the output voltage
5. VOUT: Output voltage pin

Functional Features

• Low dropout voltage ensures efficient power conversion
• Excellent line and load regulation for stable output voltage
• Built-in thermal shutdown protection
• Short-circuit current limit protection
• Fast transient response for sudden load changes
• Low quiescent current for power-saving applications

Advantages and Disadvantages

Advantages: - High-performance voltage regulation - Wide input and output voltage range - Low dropout voltage - Excellent line and load regulation - Thermal and short-circuit protection

Disadvantages: - Limited maximum output current (500mA) - Requires external components for proper operation

Working Principles

The LX7176CLQ is a linear voltage regulator that maintains a stable output voltage regardless of input voltage fluctuations. It achieves this by using a pass transistor to regulate the output voltage based on the feedback received from the FB pin. The enable pin (EN) allows the regulator to be turned on or off as needed.

When the input voltage exceeds the desired output voltage, the pass transistor adjusts its resistance to reduce the output voltage. Conversely, if the input voltage drops below the desired output voltage, the pass transistor increases its resistance to maintain a constant output voltage.

Detailed Application Field Plans

The LX7176CLQ is commonly used in various applications where a stable and regulated voltage supply is required. Some typical application fields include:

1. Battery-powered devices: Provides regulated voltage for portable electronics such as smartphones, tablets, and wearables.
2. Industrial automation: Used in control systems, sensors, and actuators to ensure stable power supply.
3. Automotive electronics: Regulates voltage for automotive modules, infotainment systems, and lighting applications.
4. Communication equipment: Ensures reliable power supply for routers, switches, and wireless access points.
5. Medical devices: Used in medical instruments, patient monitoring systems, and diagnostic equipment.

Detailed and Complete Alternative Models

1. LM1117: Low dropout voltage regulator with adjustable output voltage.
2. LT1763: High-performance LDO regulator with ultra-low dropout voltage.
3. MAX667: Low-power, low-dropout voltage regulator with integrated thermal shutdown protection.
4. ADP3339: Precision voltage regulator with high output current capability.
5. TPS796: Ultra-low noise, high PSRR voltage regulator suitable for sensitive applications.

These alternative models offer similar functionality and can be considered based on specific requirements and availability.

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