
- Stock: In Stock
- Brand: Unbranded
- Model: 1-CHIP0745
- SKU: 1-CHIP0745
Realtime Stock
Controller IC Chip - NCP81038MNTWG NCP81038 81038 chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0745)
NCP81038 is a dual synchronous buck controller that is optimizedfor converting the battery voltage or adaptor voltage into multiplepower rails required in desktop and notebook system. NCP81038consists of two buck switching controllers with fixed 5.0 V output onchannel 2, 3.3 V on channel 1 and two on−board LDOs with threeoutputs: 5 V / 60 mA and 3.3 V or 12 V / 10 mA. NCP81038 supportshigh efficiency, fast transient response and provides power goodsignals. ON Semiconductor proprietary adaptive−ripple controlenables seamless transition from CCM to DCM, where converter runsat reduced switching frequency with much higher efficiency at lightload. The part operates with supply voltage ranging from 5.5 V to28 V. NCP81038 is available in a 28−pin QFN package.
Wide Input Voltage Range: from 5.5 V to 28 V•Built−in 5 V / 60 mA LDO•Built−in selectable 3.3 V or 12 V / 10 mA LDO•Three Selectable Fixed Frequency 300 KHz, 400 KHz or 600 KHz•180 Interleaved Operation Between the Two Channels inContinue−Conduction−Mode (CCM)•Selected Power−Saving Mode/Forced PWM Mode•Transient−Response−Enhancement (TRE) Control•Input Supply Voltage Feed Forward Control•Resistive or Lossless Inductor’s DCR Current Sensing•Over−Temperature Protection•Internal Fixed 8.5 ms Soft−Start•Fixed Output Voltages 5 V and 3.3 V•Power Good Outputs for Both Channels•Built−in Adaptive Gate Drivers•Output Discharge Operation•Built−in Over−Voltage, Under−Voltage Protection•Accurate Over−Current Protection•Thermal Shutdown
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