The Holtek HT7327-1 is a low dropout (LDO) three-terminal regulator in a SOT-89 RoHS package. It has low quiescent current, low output voltage noise and a wide input voltage range. The adjustable version has an output voltage range from 0.75V up to 6.0V and a fixed version with a 2.5V output. Other features include a maximum current output of 500 mA, a typical load regulation of 0.4 mV, a typical thermal regulation of 0.02%/°C, and an operating temperature range from -40°C to +125°C. The HT7327-1 is suitable for a wide range of applications, including audio circuits, gaming, cellphones, and other high-performance circuits that require ultra-low noise and low power consumption. It is RoHS compliant and available in both SOT-89 RoHS package (which stands for Reducing Our Hazardous Substances) and SOT-223 RoHS (tailored for high power applications).