Datasheet Summary
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ISL6227
Data Sheet March 2004 FN9094.1
Dual Mobile-Friendly PWM Controller with DDR Option
The ISL6227 dual PWM controller delivers high efficiency precision voltage regulation from two synchronous buck DC/DC converters. It was designed especially to provide power regulation for DDR memory, chipsets, graphics and other system electronics in Notebook PCs. The ISL6227’s wide input voltage range capability allows for voltage conversion directly from ac/dc adaptor or Li-Ion battery pack. Automatic mode transition of constant-frequency synchronous rectification at heavy load, and hysteretic (HYS) diodeemulation at light load, assure high efficiency over a wide range of...