AMS1117 – 5.0 SOT223 / SOT89 1A Low Dropout Voltage Regulator

The AMS1117-5.0V is a versatile voltage regulator integrated circuit designed for applications requiring a stable 5.0V output with up to 1A current capacity. Packaged in the SOT-223 form factor, it belongs to a family of low dropout regulators known for their efficiency and reliability.

One of the standout features of the AMS1117 series is its low dropout voltage of 5.0V at 1A load current, which means it can regulate voltage even when the input voltage is only slightly higher than 5.0V. This efficiency helps to minimize power loss and maximize battery life in battery-powered applications.

Compared to its competitors, the AMS1117-5.0V boasts a significantly lower standby current of 2mA, which enhances its suitability for applications where power consumption during idle or standby modes is critical. This stands out particularly when compared to competitors’ regulators which typically have a higher standby current around 5mA.

The AMS1117 series includes both fixed and adjustable output voltage versions. The fixed versions provide standard voltages such as 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V, and 12V, catering to a wide range of common voltage requirements in electronics. Additionally, the adjustable version allows for output voltages anywhere between 1.25V and 12V with the use of external resistors, offering flexibility in design and application.

To ensure stability and reliability, the AMS1117-5.0V incorporates thermal shutdown and current limit functions. These features protect the IC from overheating and current spikes, thereby safeguarding both the chip itself and the overall power system. The output voltage accuracy is maintained within 2% thanks to precision trimming techniques during manufacturing, ensuring consistent performance across different operating conditions.

Furthermore, customization options for tighter output voltage accuracy (as low as 1%) are available upon request, catering to applications that demand higher precision.

In summary, the AMS1117-5.0V is a robust voltage regulator IC suitable for a wide range of applications where efficient power management, low standby current, and precise voltage regulation are essential. Its features make it a preferred choice in various consumer electronics, industrial equipment, and other electronic devices requiring stable and reliable power supply solutions.

Features:

1. Low dropout voltage
2. Load regulation: 0.2% typical
3. Optimized for Low Voltage
4. On-chip thermal limiting
5. Built-in thermal shutdown
6. Good noise rejection
7. Standard SOT-223 and TO-252 packages
8. Three-terminal adjustable or fixed low dropout