NCP81038MNTWG

NCP81038MNTWG is a synchronous buck controller with auto power saving mode and built-in LDO. It 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. It 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. Application includes desktop / notebook computers, system power supplies, I/O power supplies.

• Wide input voltage range from 5.5V to 28V, built in 5V / 60mA LDO
• 180 interleaved operation between the two channels in continue conduction mode
• Selected power saving mode/forced PWM mode, accurate over current protection
• Transient response enhancement control, thermal shutdown
• Input supply voltage feed forward control
• Resistive or lossless inductor’s DCR current sensing
• Over temperature protection, internal fixed 8.5ms soft start
• Power good outputs for both channels, built in adaptive gate drivers
• Output discharge operation, built in over voltage, under voltage protection
• 28 pin QFN package, operating temperature range from 0°C to +85°C