The TPS78001DDCR, manufactured by Texas Instruments, is a single output low-dropout (LDO) regulator designed to supply up to 150mA of continuous current. It features an adjustable output voltage range of 1.8V to 5.5V, allowing it to be used for a wide range of applications. The output voltage is trimmed with an external resistor for a precise reference voltage. Additional features include low quiescent current, fast response time, and a built-in thermal shutdown protection. It is available in a SO-8 package and is specified for up to 1MHz switching frequency. The TPS78001DDCR is ideal for use in battery-powered applications, including portable audio players, cellphones, and PDAs.