Diodes new low dropout linear regulator (LDO) improves system stability and transient response

Diodes introduces a series of new low-dropout linear regulators (LDOs) designed to drive low-equivalent series resistance (ESR) 1µF MLCC capacitors to reduce the cost of wanted manufacturing and improve control loop stability and transient response .

The AP731x and AP733x are 150mA and 300mA CMOS LDOs respectively. The wide input voltage range of 2V to 6V can meet the fixed or adjustable output voltage requirements. The fixed output voltage LDO ranges from 1.0V to 3.3V, while the adjustable device can support an output voltage of 0.8V to 5V.


The specified output accuracy of these LDO devices is 2%, which can maintain consistent voltage regulation under specific temperature, line voltage and load conditions. The device can operate over the entire industrial temperature range of –40 ° C to + 85 ° C.

Di Zhongs global marketing manager Xu Zhongzhen pointed out: "The built-in over-current, over-temperature and short-circuit protection of these LDOs further improve the robustness and reliability of the circuit. Especially in portable and low-power applications, the 55μA quiescent current rating of these devices Save more electricity. "

These versatile LDOs can benefit a variety of applications, including XDSL routers, wireless LAN cards, desktop and laptop computers, mice, keyboard products, and battery-powered devices.

The LDO uses industry standard pinouts and uses a variety of environmentally friendly packages, including SOT23, SOT25, and DNF2020-6, which can save PCB space and height.


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