NCP1588

NCP1588, NCP1589 Low Voltage Synchronous Buck Controller The NCP158x is a low cost PWM controller designed to operate from a 5 V or 12 V supply. This device is capable of producing an output voltage as low as 0.8 V. This device is capable of converting voltage from as low as 2.5 V. This 10-pin device provides an optimal level of integration to reduce size and cost of the power supply. Features include a 1.5 A gate driver design and an internally set 300ĂkHz oscillator. In addition to the 1.5 A gate drive capability, other efficiency enhancing features of the gate driver include adaptive non-overlap circuitry. The NCP158x also incorporates an externally compensated error amplifier. Protection features include programmable short circuit protection and undervoltage lockout (UVLO). Features ăVCC Range from 4.5 to 13.2 V ă300 kHz Internal Oscillator ăBoost Pin Operates to 26.4 V ăVoltage Mode PWM Control ăPrecision 0.8 V Internal Reference ăAdjustable Output Voltage ăInternal 1.5 A Gate Drivers ă80% Max Duty Cycle ăInput Under Voltage Lockout ăProgrammable Current Limit ăThis is a Pb-Free Device Applications ăGraphics Cards ăDesktop Computers ăServers / Networking ăDSP & FPGA Power Supply ăDC-DC Regulator Modules http://onsemi.com MARKING DIAGRAMS DFN10 CASE 485C 158x ALYWG G 158x x A L Y W G = Specific Device Code = 8 or 9 = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Device (Note: Microdot may be in either location) PIN CONNECTIONS BOOT LX...