CAT7580

CAT7580 Synchronous and Rectified Buck PWM Controller FEATURES: ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ ‹ The CAT7580 is available in an 8-pin SOIC package. Input Voltage Range from 4.5 V to 13.2 V 320 kHz Internal Oscillator Boost Pin Operates to 26.5 V Voltage Mode PWM Control 0.8 V ~1.5% Internal Reference Voltage Adjustable Output Voltage Internal Soft-Start Internal 1.5 A Gate Drivers Adaptive Non-Overlap Circuit 90% Max Duty Cycle Input UVLO Over-Temperature Protection Fully Specified over -40C to 85C SOP8 Package RoHS Compliant (100% Pb-free available) APPLICATION: ‹ ‹ ‹ ‹ ‹ ‹ Graphics Cards Desktop Computers Servers/Networking DSP and FPGA Power Supply DC-DC Regulator Modules LCD Monitor and LCD TV PIN CONFIGURATION: GENERAL DESCRIPTION: The CAT7580 is a voltage mode PWM controller designed to operate from a 5.0 V to 12.0 V supply and produce an output voltage as low as 0.8 V. This 8-pin device provides an optimal level of integration to reduce size and cost of the power supply. The CAT7580 has a fixed 320 kHz oscillator and soft-start function. The CAT7580 provides a 1.5 A floating gate driver design to drive N-Channel MOSFETs in a synchronous configuration. Adaptive non-overlap circuitry reduces switching losses by preventing simultaneous conduction of both outputs. Protection features include thermal shutdown and undervoltage lockout (UVLO). ORDERING INFORMATION: Part Number CAT7580CA CAT7580CH Package 8L SOP(Green) 8L SOP(Pb-free) Shipping 2500/Tape & Reel 12/14/2005 ...