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L4987CPT50TR
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L4987CPT50TR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power Management
  • Characteristics: High efficiency, low power consumption
  • Package: Surface Mount Technology (SMT)
  • Essence: Voltage Regulator
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 4.5V to 55V
  • Output Voltage Range: 1.2V to 50V
  • Output Current: Up to 3A
  • Switching Frequency: 200kHz to 1MHz
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The L4987CPT50TR has the following pin configuration:

  1. VIN: Input voltage pin
  2. GND: Ground pin
  3. COMP: Compensation pin for feedback control
  4. FB: Feedback pin for output voltage regulation
  5. VCC: Supply voltage pin
  6. EN: Enable pin for turning the device on/off
  7. PGND: Power ground pin
  8. SW: Switching node pin
  9. SS/TR: Soft-start/Tracking pin
  10. VREF: Reference voltage pin

Functional Features

  • High efficiency voltage regulation
  • Wide input voltage range
  • Adjustable output voltage
  • Overcurrent protection
  • Thermal shutdown protection
  • Soft-start function for smooth startup
  • Enable pin for easy on/off control

Advantages and Disadvantages

Advantages

  • High efficiency leads to reduced power consumption
  • Wide input voltage range allows for versatile applications
  • Adjustable output voltage provides flexibility
  • Comprehensive protection features ensure device safety
  • Soft-start function prevents inrush current during startup

Disadvantages

  • Relatively high cost compared to traditional linear regulators
  • Requires additional external components for operation

Working Principles

The L4987CPT50TR is a voltage regulator IC that utilizes a switching regulator topology. It operates by converting the input voltage into a high-frequency square wave, which is then filtered and regulated to provide a stable output voltage. This switching technique allows for higher efficiency compared to linear regulators, resulting in reduced power dissipation.

Detailed Application Field Plans

The L4987CPT50TR is commonly used in various applications, including:

  1. Power supplies for industrial equipment
  2. Automotive electronics
  3. Telecommunications systems
  4. LED lighting
  5. Battery charging circuits
  6. Distributed power systems

Detailed and Complete Alternative Models

  1. LM2576-ADJ: Adjustable Voltage Regulator, 3A Output Current
  2. LT1084CP-5: Fixed Voltage Regulator, 5V Output Voltage
  3. TPS5430DDAR: Synchronous Buck Converter, 3A Output Current
  4. MAX5033DASA+: Step-Down Switching Regulator, 500mA Output Current
  5. ADP2302ARDZ-5.0: Adjustable Voltage Regulator, 2A Output Current

These alternative models offer similar functionality and can be considered as substitutes for the L4987CPT50TR in various applications.

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기술 솔루션에 L4987CPT50TR 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of L4987CPT50TR in technical solutions:

  1. Q: What is L4987CPT50TR? A: L4987CPT50TR is a specific model of a voltage regulator IC (integrated circuit) designed for use in various technical applications.

  2. Q: What are the key features of L4987CPT50TR? A: Some key features of L4987CPT50TR include high efficiency, wide input voltage range, adjustable output voltage, overcurrent protection, and thermal shutdown.

  3. Q: What are the typical applications of L4987CPT50TR? A: L4987CPT50TR is commonly used in power supply designs, battery charging circuits, motor control systems, LED lighting applications, and other electronic devices requiring stable voltage regulation.

  4. Q: What is the maximum input voltage supported by L4987CPT50TR? A: The maximum input voltage supported by L4987CPT50TR is typically around 60V, but it's always recommended to refer to the datasheet for precise specifications.

  5. Q: How does L4987CPT50TR achieve high efficiency? A: L4987CPT50TR utilizes a switching regulator topology, which helps minimize power dissipation and maximize energy conversion efficiency.

  6. Q: Can I adjust the output voltage of L4987CPT50TR? A: Yes, L4987CPT50TR allows you to adjust the output voltage within a certain range using external components like resistors or potentiometers.

  7. Q: Does L4987CPT50TR provide any protection features? A: Yes, L4987CPT50TR incorporates overcurrent protection, thermal shutdown, and short-circuit protection to safeguard the IC and the connected circuitry.

  8. Q: What is the typical efficiency of L4987CPT50TR? A: The efficiency of L4987CPT50TR can vary depending on the specific operating conditions, but it is generally in the range of 80-95%.

  9. Q: Can L4987CPT50TR handle high current loads? A: Yes, L4987CPT50TR is designed to handle moderate to high current loads, typically up to several amps, making it suitable for various power-hungry applications.

  10. Q: Are there any recommended external components to use with L4987CPT50TR? A: Yes, the datasheet of L4987CPT50TR provides guidelines on selecting appropriate input/output capacitors, inductors, and other components to optimize performance and stability.

Please note that these answers are general and may vary based on the specific requirements and conditions of your technical solution. Always refer to the official datasheet and consult with an expert for accurate information.