ISL78228 - Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator
PIN# PIN NAME DESCRIPTION 1 FB1 The feedback network of the Channel 1 regulator.
FB1 is the negative input to the transconductance error amplifier.
The output voltage is set by an external resistor divider connected to FB1.
With a properly selected divider, the output voltage can be set to any
DATASHEET ISL78228 Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator FN7849 Rev 4.00 February 26, 2016 The ISL78228 is a high efficiency, dual synchronous step-down DC/DC regulator that can deliver up to 800mA continuous output current per channel.
The supply voltage range of 2.75V to 5.5V allows for the use of a 3.3V or 5V input.
The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and exc
ISL78228 Features
* include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL78228 is offered in a 3mmx3mm 10 Ld DFN package with 1mm maximum height. The complete converter occupies less than 1.8cm2 area. The ISL78228 is AEC-Q100 qualified and is rated for the
