ISL8088 Datasheet (Renesas) - Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator

ISL8088, Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator

DFN SYMBOL 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 v

DATASHEET ISL8088 Dual 800mA Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator FN6858 Rev 2.00 May 26, 2011 The ISL8088 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 the use of a single Li+ cell, three NiMH cells or a regulated 5V input.

The current mode control architecture enables very low duty cycle operation at high frequency with f

ISL8088 Features

* include internal digital softstart, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8088 is offered in a 3mmx3mm 10 Ld DFN package with 1mm maximum height. The complete converter occupies less than 1.8cm2 area. Features

* Internal Current Mode Compensation