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STK6772 - Four-Phase Stepping Motor Driver (with Built-in Four-Phase Distributed Controller)
ISL6322 - Four-Phase Buck PWM Controller
WD2143-03 - Four Phase Clock Generator
BL6513C - Three-phase four-wire wide-range meter
NCP5318 - Two/Three/Four-Phase Buck CPU Controller
ISL95820 - Green Hybrid Digital Four Phase PWM Controller
CS5307 - Four-Phase VRM 9.0 Buck Controller
LP875701-Q1 - Four-Phase 3-MHz 1-V 10-A DC/DC Buck Converter
ISL6312 - Four-Phase Buck PWM Controller
BL5607 - 2-phase stepper motor control four beat the driver circuit
NCP5314 - Two/Three/Four-Phase Buck CPU Controller
ISL6312A - Four-Phase Buck PWM Controller
LP8758-B0 - Four-Phase DC/DC Step-Down Converter
NCP5316 - Four/Five/Six-Phase Buck CPU Controller
WD2143-01 - Four Phase Clock Generator