NCP5211

NCP5211 Low Voltage Synchronous Buck Controller The NCP5211 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 high gate capacitance of low RDS(on) NFETs for better efficiency. The NCP5211 is in a 14−pin package to allow the designer added flexibility. The NCP5211 provides overcurrent protection, undervoltage lockout, Soft−Start and built in adaptive nonoverlap. The NCP5211 also provides adjustable fixed frequency range of 150 kHz to 750 kHz. This gives the designer more flexibility to make efficiency and component size compromises. The NCP5211 will operate over a 4.5 V to 14 V range using either single or dual input voltage. Features Switching Regulator Controller ♦ N−Channel Synchronous Buck Design ♦ V2 Control Topology ♦ 200 ns Transient Response ♦ Programmable Fixed Frequency of 150 kHz−750 kHz ♦ 1.0 V 1.5% Internal Reference ♦ Lossless Inductor Sensing Overcurrent Protection ♦ Hiccup Mode 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 ♦ 5.0 V or 12 V Operation ♦ Undervoltage Lockout ♦ On/Off Control Through Use of the COMP Pin Pb−Free Packages are Available* http://onsemi.com MARKING DIAGRAM 14 SOIC−14 D SUFFIX CASE 751A 1 NCP5211xG AWLYWW NCP5211x = Specific...