DESCRIPTION
A single pin can either set a 4 phase operation (each phase is 90 degrees apart) or 3 phase operation (120 degrees apart). SC4201 FEATURES
Low cost/small size Programmable frequency up to 2MHz, each phase Synchronized to faster frequency Programmable 2/4 or 3 phase operation APPLICATIONS
Telecom distributed power architectures Multi-phase operation of multiple primary or secondary Multi-phase operation of power supplies controllers reduces input/output ripple, the number of Multi-phase operation of switching regulators components required for filtering, and noise due to frequency beating generated by multiple free running oscillators. The SC4201 is available in the MSOP-8 surface mount package. Typical Application Circuit +3 to 6V C1 0.1 U1 SC4201 1 2 3 R1 5K 4 RT VDD SYNC A GND D C B 8 7 6 5 VDD for 3 Phase Ph D Ph C Ph B Ph A Sync Revision 3, November 2002 1 SC4201 POWER MANAGEMENT ABSOLUTE MAXIMUM RATINGS
Exceeding the specifications below may result in permanent damage to the device, or device malfunction.
Semtech Corporation
