NCV3163

NCP3163, NCV3163 3.4 A, Step-Up/Down/ Inverting 50-300 kHz Switching Regulator The NCP3163 Series is a performance enhancement to the popular MC33163 and MC34163 monolithic DC−DC converters. These devices consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. This controller was specifically designed to be incorporated in step−down, step−up, or voltage−inverting applications with a minimum number of external components. The NCP3163 comes in an exposed pad package which can greatly increase the power dissipation of the built in power switch. Features Output Switch Current in Excess of 3.0 A 3.4 A Peak Switch Current Frequency is Adjustable from 50 kHz to 300 kHz Operation from 2.5 V to 40 V Input Externally Adjustable Operating Frequency Precision 2% Reference for Accurate Output Voltage Control Driver with Bootstrap Capability for Increased Efficiency Cycle−by−Cycle Current Limiting Internal Thermal Shutdown Protection Low Voltage Indicator Output for Direct Microprocessor Interface Exposed Pad Power Package Low Standby Current NCV Prefix for Automotive and Other Applications Requiring Site and Change Control These are Pb−Free Devices 8 Vin + 7 Cin 6 Current - Limit + VCC Oscillator 5 Thermal 4 3 R Q S VCC 9 10 11 12 13 14 2 + + - 15 1 + + - LVI 16 VCC (Bottom View) Figure 1. Typical Buck Application Circuit ...