NCP1589 Datasheet | onsemi

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 300Ăk Hz 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 pensated error amplifier. Protection Features include programmable short circuit protection and undervoltage lockout (UVLO). Features - ăVCC Range from 4.5 to 13.2 V - ă300 k Hz 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 puters - ăServers / Networking - ăDSP & FPGA Power Supply - ăDC-DC Regulator Modules http://onsemi. MARKING DIAGRAMS DFN10 CASE 485C 158x ALYWG 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 UG LG 1 2 3 4 5 10 PGOOD 9 VOS 8 FB 7 P/EN 6...