AMS1117-3.3v SMD

Overview of AMS1117-3.3V SMD Voltage Regulator

The AMS1117-3.3V is a low dropout (LDO) voltage regulator designed to provide a stable output voltage of 3.3V. It is available in a surface-mount device (SMD) package, specifically the SOT-223 configuration, making it suitable for compact electronic designs.

Key Specifications

• Output Voltage: 3.3V fixed output.
• Maximum Output Current: Up to 1A, allowing it to power various electronic components effectively.
• Dropout Voltage: The AMS1117 features a low dropout voltage of approximately 1.3V at full load, which means it can operate with a minimal difference between input and output voltage.
• Input Voltage Range: Typically accepts input voltages up to 15V, providing flexibility in power supply options.
• Standby Current: Very low standby current of around 2mA, which is advantageous for battery-powered applications.

Features

• Thermal Protection: The device includes built-in thermal shutdown protection, ensuring safe operation under high load conditions.
• Short-Circuit Protection: It also features short-circuit protection, which helps prevent damage to the device and connected components.
• Compact Size: The SOT-223 package allows for easy integration into space-constrained designs.

Applications

The AMS1117-3.3V is widely used in:

• Microcontroller Power Supplies: Ideal for powering microcontrollers and other digital circuits that require a stable 3.3V supply.
• Sensor Applications: Commonly used in sensor circuits where consistent voltage is critical for accurate readings.
• Communication Devices: Suitable for use in various communication devices that operate at 3.3V.

Overall, the AMS1117-3.3V is a reliable and efficient voltage regulator that is essential for many electronic applications, providing stable power with minimal dropout and low standby current.