The ISL8088 is an 800 mA dual step-down regulator with integrated power MOSFETs. The selectable operation mode between forced PWM mode and automatic PWM/PFM mode maximizes battery life in portable and handheld applications. The low quiescent current of 35 μA in a light load condition makes the ISL8088 ideal for battery powered and other “Green Power” applications. The supply voltage range is from 2.7 to 5.5 V allowing the use of single Li+ cell, three NiMH cells or a 3 V/5 V input. In addition, the chip’s external synchronization capability of up to 4 MHz reduces beat frequency generation in multiple IC systems and boards. Independent enable (EN) signals for both channels, along with the power-good (PGOOD) signal, provide inherent sequencing capability in a multi-chip system. The ISL8088 also features peak current limiting, short circuit protection, and thermal shutdown for reliable operation under adverse conditions. Finally, the ISL8088 is pin-to-pin compatible with Linear Technology’s LTC3407-2.