LD2979Z50AP

Product Overview

• Category: Integrated Circuit
• Use: Power Management
• Characteristics: High efficiency, low power consumption
• Package: TO-220
• Essence: Voltage Regulator
• Packaging/Quantity: Tape and Reel, 1000 units per reel

Specifications

• Input Voltage Range: 4.5V to 40V
• Output Voltage: 5V
• Output Current: 2A
• Quiescent Current: 10mA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD2979Z50AP has a standard TO-220 package with three pins:

1. Pin 1: Vin (Input Voltage)
2. Pin 2: GND (Ground)
3. Pin 3: Vout (Output Voltage)

Functional Features

• Voltage Regulation: The LD2979Z50AP provides a stable output voltage of 5V regardless of input voltage fluctuations.
• Current Limiting: It incorporates current limiting protection to prevent damage due to excessive load currents.
• Thermal Shutdown: The device includes thermal shutdown protection to prevent overheating.

Advantages and Disadvantages

Advantages: - High efficiency, reducing power consumption - Wide input voltage range allows for versatile applications - Compact TO-220 package for easy integration into various circuits

Disadvantages: - Limited output current of 2A may not be sufficient for high-power applications - Requires external components for proper operation

Working Principles

The LD2979Z50AP is a voltage regulator that utilizes a feedback mechanism to maintain a constant output voltage. It compares the output voltage with a reference voltage and adjusts the internal circuitry accordingly to ensure a stable 5V output. The device also incorporates protection features such as current limiting and thermal shutdown to safeguard against overloading and overheating.

Detailed Application Field Plans

The LD2979Z50AP is commonly used in various applications, including:

1. Power Supplies: It can be employed in power supply circuits to regulate the voltage and provide a stable 5V output for microcontrollers, sensors, and other electronic components.
2. Automotive Electronics: The LD2979Z50AP finds application in automotive systems, such as infotainment systems, where it ensures a reliable power source for various modules.
3. Industrial Control Systems: It is suitable for use in industrial control systems that require precise voltage regulation, such as PLCs (Programmable Logic Controllers) and motor control circuits.

Detailed and Complete Alternative Models

• LM7805: This popular linear voltage regulator offers similar specifications and functionality to the LD2979Z50AP.
• LT1084: A high-current linear voltage regulator capable of delivering up to 5A output current.
• TPS7A4700: A low-dropout (LDO) voltage regulator with adjustable output voltage and ultra-low quiescent current.

(Note: These alternative models are provided for reference purposes and may have different package types or additional features.)

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