onsemi, NCP1532MUAATXG Step-Down Switching Regulator, 1-Channel 1.6A Adjustable 10-Pin, UDFN

The NCP1532 dual step down DCDC converter is a monolithic integrated circuit dedicated to supply core and I/O voltages of new multimedia design in portable applications powered from 1-cell Li-ion or 3 cell Alkaline/NiCd/NiMH batteries. Both channels are externally adjustable from 0.9V to 3.3V and can source totally up to 1.6A, 1.0A maximum per channel. Converters are running at 2.25MHz switching frequency which reduces component size by allowing the use of small inductor (down to 1uH) and capacitors and operates 180 degrees out of phase to reduce large amount of current demand on the battery.

97% efficiency, 50uA quiescent current, 0.3 uA shutdown current
2.25MHz switching frequency
Mode pin operation : Auto-switching PWM/PFM mode at light loading or PWM mode only
Adjustable outputs voltage from 0.9V to 3.3V
POR on reset output pin
Can source up to 1.6A, 1.0A max per channel (800mA/800mA or 1.0A/600mA)
Extends battery life and 'play-time'
Allows use of smaller inductor and capacitor

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