LDK130C-R

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

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

Package: TO-220

Essence: LDK130C-R is a voltage regulator IC that provides a stable output voltage for various electronic devices.

Packaging/Quantity: The LDK130C-R is available in a TO-220 package and is typically sold in reels or tubes containing 50 units.

Specifications

• Input Voltage Range: 2.5V to 15V
• Output Voltage Range: 1.25V to 13.8V
• Dropout Voltage: 0.4V at 500mA
• Output Current: Up to 1.5A
• Quiescent Current: 75µA
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LDK130C-R has three pins:

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

Functional Features

• Low Dropout Voltage: The LDK130C-R 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 1.5A, this voltage regulator can power a wide range of electronic devices.
• Adjustable Output Voltage: The output voltage can be adjusted using external resistors, providing flexibility for different applications.
• Thermal Shutdown Protection: The IC includes a thermal shutdown feature that protects it from overheating by shutting down the output when the temperature exceeds a certain threshold.
• Short-Circuit Current Limiting: In case of a short circuit, the LDK130C-R limits the current to prevent damage to the IC and connected devices.
• Overcurrent Protection: The voltage regulator has built-in overcurrent protection, which safeguards against excessive current flow.

Advantages and Disadvantages

Advantages: - High output current capability - Adjustable output voltage - Thermal shutdown protection - Short-circuit current limiting - Overcurrent protection

Disadvantages: - Dropout voltage may limit its use in low-power applications - Requires external resistors for output voltage adjustment

Working Principles

The LDK130C-R is based on a linear voltage regulation principle. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output pins. The internal circuitry monitors the output voltage and adjusts the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LDK130C-R can be used in various applications where a stable and regulated voltage supply is required. Some potential application fields include: - Power supplies for microcontrollers and other digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

1. LM317: This popular voltage regulator offers similar features and adjustable output voltage.
2. LT1084: A high-current, low-dropout voltage regulator suitable for demanding applications.
3. LM7805: A fixed-output voltage regulator with a 5V output, commonly used in many electronic devices.

These alternative models provide different specifications and features, allowing users to choose the most suitable option for their specific requirements.

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