NCP81044

NCP81044 Product Preview Low Voltage Synchronous Buck Controller The NCP81044 is a PWM controller designed to operate from a 5 V or 12 V supply. These devices are capable of producing an output voltage as low as 0.8 V. These 8−pin devices provide an optimal level of integration to reduce size and cost of the power supply. The NCP81044 provides a 1 A gate driver design and an internally set 275 kHz oscillator. In addition to the 1 A gate drive capability, other efficiency enhancing features of the gate driver include adaptive non−overlap circuitry. The devices also incorporate an externally compensated error amplifier and a capacitor programmable soft−start function. Protection features include programmable short circuit protection and under voltage lockout (UVLO). The NCP81044 comes in an 8−pin SOIC package. Features http://onsemi.com MARKING DIAGRAM 8 8 1 SOIC−8 D SUFFIX CASE 751 1 81044 = Specific Device Code A = Assembly Location L = Wafer Lot Y = Year W = Work Week G = Pb−Free Device 81044 ALYW G Input Voltage Range from 4.5 to 13.2 V 275 kHz Internal Oscillator Boost Pin Operates to 30 V Voltage Mode PWM Control 0.8 V ±1.0 % Internal Reference Voltage Adjustable Output Voltage Capacitor Programmable Soft−Start Internal 1 A Gate Drivers 80% Max Duty Cycle Input Under Voltage Lockout Programmable Current Limit These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Graphics Cards Desktop Computers Servers / Networking DSP & FPGA Po...