NCP81148: Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO

NCP81148 is a dual synchronous buck controller that is optimized for converting the battery voltage or adaptor voltage into multiple power rails required in desktop and notebook system. NCP81148 consists of two buck switching controllers with fixed 5.0 V output on channel 2, 3.3 V on channel 1 and two on−board LDOs with three outputs: 5 V / 60 mA and 3.3 V or 12 V / 10 mA. NCP81148 supports high efficiency, fast transient response and provides power good signals. ON Semiconductor proprietary adaptive−ripple control enables seamless transition from CCM to DCM, where converter runs at reduced switching frequency with much higher efficiency at light load. The part operates with supply voltage ranging from 5.5 V to 28 V.

数据表 (1)
Document TitleDocument ID/SizeRevisionRevision Date
Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDONCP81148/D (184kB)P0
封装图纸 (1)
Document TitleDocument ID/SizeRevision
QFN28 4x4, 0.4P485AR (58.7kB)A
产品订购型号
产品状况Compliance封装MSL*容器预算价格 (1千个数量的单价)
NCP81148MNTWGActivePb-free Halide freeQFN-28485AR1Tape and Reel4000$0.76
订购产品技术参数
ProductTopologyPhasesControl ModeVCC Min (V)VCC Max (V)fSW Typ (kHz)tres Typ (ns)
NCP81148MNTWGStep-Down1Voltage Mode5.528300, 400, 600
Synchronous Buck Controller with Auto Power Saving Mode and Built-In LDO (184kB) NCP81148
QFN28 4x4, 0.4P NCP81241