Automotive-compliant LDOs provide power good support off-battery POL

Diodes Incorporated has widened its portfolio of automotive-compliant LDO voltage regulators, introducing two device series. The AP7583AQ and AP7583Q series have 300mA maximum output current and 320mV dropout voltages. These LDOs are ideal for battery-connected automotive applications. They aim to support the microelectronics hardware used in body control modules, in-vehicle networking transceivers, EV battery-management systems, exterior lighting infrastructure, and instrumentation clusters.

The power-good indicator output that is featured on each of the AP7583AQ series devices is an important differentiator. This allows ongoing supply monitoring. It also supplies fault-reporting capabilities and enables power sequencing.

The devices have fixed output voltage versions (3.3V and 5V) and adjustable output versions. They support a wide input voltage from 3V to 42V. This and their low-dropout voltage permit these LDOs to support cold-cranking and handle load dump situations.

The ultra-low quiescent current is another key characteristic of the series. This is only 3µA at light loads – making them highly optimised for powering 'always-on' components such as the MCUs and CAN transceivers in standby systems.

The series are AEC-Q100 Grade 1 qualified, manufactured in IATF 16949 certified facilities, and support PPAP documentation. Both LDO series are supplied in six-pin W-DFN2020 packages. Also, the AP7583AQ series is offered in eight-pin MSOP and four-pin TO252 package formats.