LX8587A-15CP

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - Low dropout voltage - High output current capability - Thermal shutdown protection - Short circuit current limiting - Overcurrent and overtemperature protection

Package: TO-220

Essence: The LX8587A-15CP is a voltage regulator IC that provides a stable output voltage with low dropout. It is commonly used in various electronic devices to regulate the voltage and ensure proper functioning of the circuits.

Packaging/Quantity: The LX8587A-15CP is available in a TO-220 package, which is a widely used package type for power electronic components. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 4.5V to 20V
• Output Voltage: 1.5V
• Output Current: Up to 3A
• Dropout Voltage: 0.5V (typical)
• Quiescent Current: 10mA (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LX8587A-15CP 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

• Low Dropout Voltage: The LX8587A-15CP has a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• High Output Current Capability: With a maximum output current of 3A, this voltage regulator can handle high current loads.
• Thermal Shutdown Protection: The IC incorporates thermal shutdown protection, which prevents overheating and damage to the device.
• Short Circuit Current Limiting: In case of a short circuit, the LX8587A-15CP limits the output current to protect the circuitry.
• Overcurrent and Overtemperature Protection: The IC includes built-in protection against excessive current and temperature, ensuring safe operation.

Advantages and Disadvantages

Advantages: - Low dropout voltage ensures efficient regulation even with small input-output voltage differentials. - High output current capability allows it to power demanding loads. - Thermal shutdown protection prevents damage due to overheating. - Short circuit current limiting protects the circuit from damage in case of a fault. - Overcurrent and overtemperature protection ensure safe operation.

Disadvantages: - Limited output voltage options (fixed at 1.5V). - Requires external components for stability and filtering.

Working Principles

The LX8587A-15CP is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It compares the reference voltage with the feedback voltage and adjusts the pass transistor's resistance to maintain a stable output voltage. The dropout voltage is minimized by using a low dropout pass transistor.

Detailed Application Field Plans

The LX8587A-15CP finds applications in various electronic devices where a stable and regulated voltage is required. Some common application fields include: - Power supplies for microcontrollers and digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

• LM1117-1.5: A popular alternative with similar specifications and features.
• LT1086-1.5: Another alternative with adjustable output voltage.
• LP2950-1.5: A low-power alternative suitable for battery-powered applications.

These alternative models provide similar functionality and can be used as replacements for the LX8587A-15CP in various applications.

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