RichTek Technology Corporation Voltage Regulators - Linear, Low Drop Out (LDO) Regulators RT9181-18GB

The RT9181-18GB is a low dropout linear voltage regulator designed to provide a stable output voltage of 1.8V with a maximum output current of 150mA. It operates with an input voltage range of +3V to +5.5V and features a power good (PGOOD) function that indicates the output voltage status. The device has a low quiescent current of 160OºA, which remains consistent regardless of load conditions. Key features include current limiting, thermal protection, and under voltage lockout, ensuring reliable operation in various applications. The RT9181 is compatible with low ESR ceramic capacitors, which are recommended for stability and performance. It is housed in a compact SOT-23-5 package and is RoHS compliant, making it suitable for environmentally friendly designs. This regulator is ideal for applications such as processor power-up sequencing and portable computing devices.