The AMS1117M-3.3/TR is a low dropout (LDO) linear regulator manufactured by HGSEMI. It is designed to provide a stable and regulated 3.3V output voltage from a higher input voltage. This regulator is commonly used in various electronic devices and systems where a well-regulated voltage supply is crucial.

Applications:

• Post regulation for switching power supplies.
• Battery chargers.
• Microprocessor power supply.
• Motherboard applications.
• Voltage regulation in instrumentation and control systems.

Features:

• Low Dropout Voltage: Ensures stable output voltage even when the input voltage is close to the output voltage.
• 3.3V Fixed Output: Provides a precisely regulated 3.3V output.
• Output Current: Typically capable of delivering up to 1A of output current.
• Over-Temperature Protection: Protects the regulator from thermal overload.
• Current Limiting: Limits the output current to prevent damage from short circuits or excessive loads.
• Surface Mount Package: Facilitates easy assembly on printed circuit boards.

Benefits:

• Stable Voltage Supply: Provides a consistent and reliable 3.3V power source for sensitive electronic components.
• Protection: Over-temperature and current limiting features enhance the robustness and reliability of the system.
• Easy Integration: The surface mount package simplifies the assembly process and reduces manufacturing costs.
• Efficiency: Low dropout voltage improves efficiency compared to traditional linear regulators, especially when the input voltage is only slightly higher than the output voltage.
• Reduced Noise: LDO regulators are known for producing low output noise, which is beneficial in noise-sensitive applications.

Additional Details:

The AMS1117M-3.3/TR typically operates with an input voltage range slightly above 3.3V, typically up to 15V or 18V depending on the specific manufacturer's specifications. It is available in a variety of surface mount packages, such as SOT-223. It's crucial to consult the datasheet for specific operating conditions, thermal considerations, and absolute maximum ratings. The device also offers excellent line and load regulation, ensuring consistent output voltage under varying input voltage and load conditions.

The AMS1117 series comes in adjustable and fixed voltage versions. The AMS1117M-3.3/TR is the 3.3V fixed voltage version. Always refer to the manufacturer's datasheet for the most accurate and up-to-date specifications.