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The AMS1117-ADJ is a low dropout voltage regulator manufactured by Advanced Monolithic Systems (AMS). Below are its key specifications, descriptions, and features:

Specifications:

• Output Voltage: Adjustable (1.25V to 13.8V)
• Output Current: Up to 1A
• Dropout Voltage: 1.2V (typical at full load)
• Input Voltage Range: Up to 15V
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Operating Temperature Range: -40°C to +125°C
• Package Options: TO-252 (DPAK), TO-220, SOT-223

Descriptions:

• The AMS1117-ADJ is an adjustable linear regulator with a low dropout voltage, making it suitable for battery-powered and low-voltage applications.
• It requires only two external resistors to set the output voltage.
• Includes built-in current limiting and thermal shutdown protection.

Features:

• Adjustable Output: Set via external resistors (R1 and R2).
• Low Dropout Voltage: Ensures efficient regulation even with small input-output differentials.
• High Accuracy: Tight output voltage tolerance.
• Thermal & Current Protection: Prevents damage from overheating or excessive current.
• Stable with Low-ESR Capacitors: Works reliably with ceramic or tantalum capacitors.

This regulator is commonly used in power supplies, embedded systems, and portable electronics. For exact performance values, refer to the official AMS1117-ADJ datasheet.