MAX25605 Six-Channel Sequential LED Controller Analog Devices MAX25605 Six-Channel Sequential LED Controller implements a sequential turn function or any other sequential light animation without the use of a microcontroller or software. The Analog Devices MAX25605 integrates six cascoded low RDSON N-channel MOSFETs suitable for LED lighting applications up to 750mA. Each switch supports up to three series LEDs per switch. The entire LED string voltage supported is up to 60V. The N-channel MOSFETs are divided into two groups of three, allowing a single device to sequence either one or two strings of LEDs. Integrated gate drivers and level shifters for the switches are supplied by an internal charge-pump regulator, supporting buck-boost and boost-to-battery applications, in addition to ground-referenced LED driver topologies.