Compact dual low-dropout regulator features high accuracy and low quiescent current

The AP7344 from Diodes Incorporated is a new dual 300mA low-dropout (LDO) regulator that offers high 1% output accuracy and a low quiescent current of 50µA. The device features a small package to suit battery-powered consumer products such as cameras, smart phones and tablets. The AP7344 supports input voltages from 1.7V to 5.25V enabling it to cover the full range of Li+ batteries typically found in portable electronics systems. It provides a regulated output voltage, VOUT, that can be fixed between 1.2V and 3.6V, with an accuracy of 1% at +25C, and is capable of driving 300mA loads. Other key performance features of this regulator include: low RDSON, a high PSRR of 75dB at 1kHz, low output noise of 60µVrms, and a low 50µA quiescent current that contributes to power savings, which lengthens battery life. The AP7344 comes in a small footprint X2-DFN1612-8 package, making it well-suited for the dense PCB layouts typical in portable electronics systems. It offers a competitive alternative to similar industry-standard LDOs with comparable performance but at a lower cost and with the added benefit of higher efficiency under light load operating conditions, says the company.