The HT7521-7 is a low dropout regulator (LDO) from Holtek, offered in a SOT-89 package. This device utilizes a CMOS process, and is RoHS compliant, meaning it does not contain any hazardous substances such as lead. The HT7521-7 features a wide input voltage range (3.0V to 28V); a low quiescent current (1.3mA); and an adjustable output voltage range of 0.8V to 6.15V (with a maximum current of 0.5A). This LDO is ideal for applications requiring an environmentally friendly and cost-effective regulator, whether it be for general, low-power, or precision regulation. It is suitable for use in automotive, industrial, or consumer electronics.