NPOR Datasheet(PDF) - A8587 - Allegro MicroSystems

Manufacturer	Part #	Datasheet	Description
Allegro MicroSystems	A8587	601Kb/17P	Wide Input Voltage, Adjustable Frequency, 2 Amp Non-Synchronous Buck Regulator with Enable and NPOR
	A8660	2Mb/28P	Wide Input Voltage, Adjustable Output, Synchronous Buck Controller with PWM Frequency Dithering, Synchronization, and NPOR
	ARG81401	2Mb/31P	Adjustable Frequency Buck or Buck-Boost Pre-Regulator with 2 LDOs, Window Watchdog Timer, and NPOR
	APEK8651KLP-01-MH	1Mb/34P	Low Input Voltage, Adjustable Frequency Dual Synchronous 2A / 2A Buck Regulator with Synchronization, 2x EN, and 2x NPOR
	A4413	1Mb/47P	Adjustable Frequency Buck or Buck-Boost Pre-Regulator with Synchronous Buck, 5 V Protected LDO, Pulse-Width Window Watchdog, and NPOR
	A8589	3Mb/40P	Wide Input Voltage, 2.4 MHz, 2.5 A Asynchronous Buck Regulator With Low-IQ Standby, Sleep Mode, External Synchronization, and NPOR Output
	A8590	3Mb/38P	Wide Input Voltage, 2.4 MHz, 3.0 A Asynchronous Buck Regulator With Low-IQ Standby, Sleep Mode, External Synchronization, and NPOR Output

NPOR Datasheet, PDF