NCP5211A

www.DataSheet4U.com NCP5211A Low Voltage Synchronous Buck Controller The NCP5211A is a low voltage synchronous buck controller. It contains all required circuitry for a synchronous buck converter using external N−Channel MOSFETs. High current internal gate drivers are capable of driving low RDS(on) NFETs for better efficiency. The NCP5211A is in a 14 pin package to minimize PCB area. The NCP5211A provides overcurrent protection, undervoltage lockout, soft start and built in adaptive nonoverlap. The NCP5211A is adjustable over a frequency range of 150 kHz to 750 kHz. This gives the designer more flexibility to make efficiency and component size compromises. The NCP5211A will operate on a single supply or a separate boost supply. Features http://onsemi.com MARKING DIAGRAM 14 SOIC−14 D SUFFIX CASE 751A 1 B WL Y WW = Assembly Location = Wafer Lot = Year = Work Week NCP5211A BWLYWW Switching Regulator Controller − N−Channel Synchronous Buck Design − 1.0 Amp Gate Drive Capability − 200 ns Transient Response − Programmable Operating Frequency of 150 kHz−750 kHz − 0.8 V 1% Internal Reference − Lossless Inductor Sensing Overcurrent Protection − Cycle−by−Cycle Short Circuit Protection − Programmable Soft Start − 40 ns GATE Rise and Fall Times (3.3 nF Load) − 70 ns Adaptive FET Nonoverlap Time − Differential Remote Sense Capability System Power Management − Operation with a Conversion Rail of 5.0 V or 12 V − Undervoltage Lockout − On/Off Control Through Use of the COMP Pin − Max D...