AMS1117-1.8
Overview
The AMS1117-1.8 is a low dropout linear regulator designed to provide a fixed 1.8V output at up to 1A of current. It operates with an input voltage up to 10V and is housed in a SOT-223-3L package, making it suitable for compact surface-mount designs. The device includes internal circuitry for current limiting and thermal shutdown to protect against fault conditions.
Why Choose This Part
The regulator features a high Power Supply Rejection Ratio (PSRR) of 75dB at 120Hz, ensuring minimal ripple on the output rail. It offers a tight output accuracy of 1.5 percent and is designed to remain stable across a wide industrial temperature range of -40 to 125 degrees Celsius.
Applications
Key Specifications
Getting Started
To use the AMS1117-1.8, place a 10uF or larger tantalum capacitor on the output to ensure stability and improve transient response. Ensure the SOT-223 package has adequate PCB copper pour connected to the tab for thermal dissipation, as the device relies on the board for heat sinking at high current loads.
Also Consider
STMicroelectronics
- A widely available 1117-series equivalent with similar pinout and 800mA to 1A current capability.
