NCP5422A

NCP5422A Dual Out-of-Phase Synchronous Buck Controller with Current Limit The NCP5422A is a dual N-channel synchronous buck regulator controller. It contains all the circuitry required for two independent buck regulators and utilizes the V2t control method to achieve the fastest possible transient response and best overall regulation, while using the least number of external components. The NCP5422A features out-of-phase synchronization between the channels, reducing the input filter requirement. The NCP5422A also provides undervoltage lockout, Soft-Start, built in adaptive non-overlap time and hiccup mode overcurrent protection. Features ăV2 Control Topology ăHiccup Mode Overcurrent Protection ă150 ns Transient Response ăProgrammable Soft-Start ă100% Duty Cycle for Enhanced Transient Response ă150 kHz to 600 kHz Programmable Frequency Operation ăSwitching Frequency Set by Single Resistor ăOut-Of-Phase Synchronization Between Channels ăUndervoltage Lockout ăBoth Gate Drive Outputs Held Low During Fault Condition ăPb-Free Packages are Available http://onsemi.com 16 1 SO-16 AD SUFFIX CASE 751B MARKING DIAGRAMS AND PIN CONNECTIONS 1 GATE(H)1 GATE(L)1 GND BST IS+1 IS-1 VFB1 COMP1 NCP5422AG AWLYWW 16 GATE(H)2 GATE(L)2 VCC ROSC IS+2 IS-2 VFB2 COMP2 A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = Pb-Free Package ORDERING INFORMATION Device Package Shipping† NCP5422ADR2 SO-16 2500 Tape & Reel NCP5422ADR2G SO-16 2500 Tape & Reel (Pb-Free) †F...