Power Electronics
The LDO features a small package to suit batterypowered consumer products such as cameras smart phones and tablets Image courtesy of Diodes

The LDO features a small package to suit battery-powered consumer products such as cameras, smart phones and tablets. (Image courtesy of Diodes).

Dual LDO Regulator Provides High Accuracy and Low Quiescent Current

The AP7344 from Diodes Inc. is a dual 300mA low-dropout (LDO) regulator that offers high 1% output accuracy and a low quiescent current of 50µA. This LDO features a small package to suit battery-powered consumer products such as cameras, smart phones and tablets.

The AP7344 supports input voltages from 1.7 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 1.2 and 3.6 V, with an accuracy of 1% at +25oC, 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 suitable 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.

In quantities of 5k (one reel), the AP7344 is priced at $0.25 USD each. 

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