The LM1117RS-1.2V is a low dropout (LDO) voltage regulator manufactured by TAEJIN / HTC Korea. This regulator provides a fixed 1.2V output voltage with a low dropout voltage, meaning it can maintain regulation even when the input voltage is only slightly higher than the output voltage. It is commonly used in various electronic devices to provide a stable and regulated power supply for sensitive components. The LM1117RS-1.2V is known for its simplicity, reliability, and ease of use.

Applications:

• Microcontroller power supplies
• Logic circuits
• Post-regulation for switching power supplies
• Battery-powered devices
• Linear regulators for various electronic circuits

Features:

• Fixed 1.2V output voltage
• Low dropout voltage (typically 1.1V at 800mA)
• Output current up to 800mA
• Overcurrent and overtemperature protection
• 3-terminal SOT-223 package
• Operating temperature range: -40°C to +125°C

Benefits:

• Stable output voltage: Provides a stable and regulated 1.2V output voltage, ensuring reliable operation of connected devices.
• Low dropout voltage: Maintains regulation even with low input voltage, maximizing battery life in portable applications.
• Overcurrent and overtemperature protection: Protects the regulator and connected devices from damage due to excessive current or temperature.
• Simple to use: Requires minimal external components, simplifying circuit design.
• Compact size: SOT-223 package allows for easy integration into space-constrained applications.

Additional Details:

The LM1117RS-1.2V requires only a few external components for proper operation, making it a simple and cost-effective solution for voltage regulation. The overcurrent protection limits the output current in the event of a short circuit or overload, preventing damage to the regulator. The overtemperature protection shuts down the regulator when the junction temperature exceeds a safe limit, protecting it from thermal damage. The SOT-223 package provides good thermal performance, allowing the regulator to deliver up to 800mA of output current. This LDO regulator is commonly used in a wide range of electronic devices where a stable 1.2V power supply is required.