LX8584-33CP

Product Overview

Category: Voltage Regulator
Use: To regulate and stabilize voltage in electronic circuits
Characteristics: High precision, low dropout voltage, low quiescent current
Package: TO-220
Essence: Linear voltage regulator
Packaging/Quantity: Tube packaging, 50 pieces per tube

Specifications

• Input Voltage Range: 4.5V to 7V
• Output Voltage: 3.3V
• Dropout Voltage: 0.5V (typical)
• Quiescent Current: 75µA (typical)
• Maximum Output Current: 1.5A
• Line Regulation: 0.02%/V (typical)
• Load Regulation: 0.04%/A (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX8584-33CP voltage regulator has three pins:

1. Input (VIN): This pin is connected to the input voltage source.
2. Ground (GND): This pin is connected to the ground reference.
3. Output (VOUT): This pin provides the regulated output voltage.

Functional Features

• High precision voltage regulation: The LX8584-33CP ensures a stable output voltage of 3.3V, even with variations in input voltage and load conditions.
• Low dropout voltage: With a typical dropout voltage of only 0.5V, this regulator can operate efficiently even when the input voltage is close to the desired output voltage.
• Low quiescent current: The LX8584-33CP consumes minimal current when there is no load, resulting in improved energy efficiency.
• Overcurrent and thermal protection: The regulator includes built-in protection mechanisms to prevent damage from excessive current or high temperatures.

Advantages and Disadvantages

Advantages: - High precision voltage regulation ensures stable performance. - Low dropout voltage allows for efficient operation. - Low quiescent current improves energy efficiency. - Built-in protection mechanisms provide added reliability.

Disadvantages: - Limited maximum output current of 1.5A may not be suitable for high-power applications. - TO-220 package may require additional heat sinking for certain operating conditions.

Working Principles

The LX8584-33CP is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the output voltage with a reference voltage and adjusting the pass transistor accordingly. When the input voltage exceeds the desired output voltage, the pass transistor reduces the excess voltage, ensuring a stable output. The regulator continuously monitors the output voltage and adjusts the pass transistor to maintain the desired voltage level.

Detailed Application Field Plans

The LX8584-33CP is commonly used in various electronic devices and circuits where a stable 3.3V power supply is required. Some typical application fields include:

1. Microcontrollers and microprocessors
2. Digital logic circuits
3. Communication systems
4. Audio amplifiers
5. Battery-powered devices

Detailed and Complete Alternative Models

1. LM1117-3.3: Similar specifications and features, available in different packages (SOT-223, SOT-89).
2. LT1086-3.3: Higher maximum output current (3A), adjustable output voltage.
3. L78M33CV: Lower dropout voltage (0.2V), lower quiescent current (5mA).

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

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