LD1117S50TR

Basic Information Overview

• Category: Voltage Regulator
• Use: To regulate voltage in electronic circuits
• Characteristics:
  • Low dropout voltage
  • Output current up to 800 mA
  • Adjustable output voltage
• Package: SOT-223
• Essence: Linear voltage regulator
• Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

• Input Voltage Range: 4.75 V to 15 V
• Output Voltage Range: 1.2 V to 13.8 V
• Dropout Voltage: 1.1 V (typical)
• Output Current: Up to 800 mA
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The LD1117S50TR has three pins: 1. Vin: Input voltage pin 2. Vout: Output voltage pin 3. GND: Ground pin

Functional Features

• Low dropout voltage ensures efficient regulation even with small input-output voltage differentials.
• Adjustable output voltage allows for flexibility in various applications.
• Overcurrent and thermal protection safeguards the device and connected components.

Advantages

• Compact SOT-223 package enables easy integration into space-constrained designs.
• Wide input voltage range makes it suitable for a variety of applications.
• High output current capability supports power-hungry loads.
• Excellent line and load regulation ensure stable output voltage.

Disadvantages

• Limited maximum output voltage may not be suitable for certain applications requiring higher voltages.
• Dropout voltage can cause power dissipation and heat generation in high current applications.

Working Principles

The LD1117S50TR is a linear voltage regulator that uses a pass transistor to regulate the output voltage. It operates by comparing the reference voltage with a fraction of the output voltage, adjusting the pass transistor accordingly to maintain a stable output voltage.

Detailed Application Field Plans

The LD1117S50TR is commonly used in various electronic devices and systems, including: - Power supplies for microcontrollers and other digital ICs - Battery-powered devices requiring regulated voltage - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as replacements for LD1117S50TR are: - LM1117: Similar specifications and pin configuration, available in different package options. - LT1117: Higher output current capability, wider input voltage range, and lower dropout voltage. - LDO50: Lower cost option with comparable performance characteristics.

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