LD1117V50

Product Overview

Category

The LD1117V50 belongs to the category of voltage regulators.

Use

It is primarily used for regulating voltage in electronic circuits.

Characteristics

• Low dropout voltage
• Output current up to 800 mA
• Adjustable output voltage
• Thermal overload protection
• Short-circuit protection

Package

The LD1117V50 comes in a TO-220 package, which is a widely used through-hole package for power semiconductors.

Essence

The essence of LD1117V50 lies in its ability to provide stable and regulated voltage output in various electronic applications.

Packaging/Quantity

Typically, the LD1117V50 is available in reels or tubes, with quantities varying depending on the manufacturer's specifications.

Specifications

• Input Voltage Range: 4.4 V to 15 V
• Output Voltage Range: 1.25 V to 13.8 V
• Dropout Voltage: 1.2 V (typical)
• Output Current: Up to 800 mA
• Line Regulation: 0.04% (typical)
• Load Regulation: 0.1% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1117V50 has three pins:

1. Vin (Input): This pin is used to connect the input voltage source.
2. Vout (Output): The regulated output voltage is obtained from this pin.
3. GND (Ground): This pin is connected to the ground reference of the circuit.

Functional Features

• Low Dropout Voltage: The LD1117V50 exhibits a low dropout voltage, allowing it to regulate the output voltage even when the input voltage is close to the desired output voltage.
• Adjustable Output Voltage: The output voltage can be adjusted within a specified range using external resistors.
• Thermal Overload Protection: The regulator incorporates thermal overload protection, preventing damage due to excessive heat.
• Short-Circuit Protection: It is equipped with short-circuit protection, safeguarding the circuit from potential damage in case of a short circuit.

Advantages and Disadvantages

Advantages

• High output current capability
• Wide input voltage range
• Low dropout voltage
• Adjustable output voltage

Disadvantages

• Relatively higher power dissipation compared to switching regulators
• Limited output voltage range

Working Principles

The LD1117V50 operates based on the principle of linear voltage regulation. It uses a pass transistor to regulate the output voltage by adjusting the resistance between the input and output terminals. By maintaining a constant voltage drop across the pass transistor, it ensures a stable output voltage regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The LD1117V50 finds applications in various electronic systems, including but not limited to: - Power supplies for microcontrollers and digital circuits - Battery-powered devices - Automotive electronics - Industrial control systems - Audio amplifiers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LD1117V50 are: - LM317 - LT1085 - LDO50V

These models offer similar functionality and characteristics, providing options for different design requirements.

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