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FP DCDC升压芯片内置2Amos
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NCP3063/NCP363B/NCV3063芯片介绍-----ncp3063 introduction
    NCP3063/NCP363B/NCV30631.5 A, Step-Up/Down/Inverting Switching RegulatorsThe NCP3063 Series is a higher frequency upgrade to the popular MC34063A and MC33063A monolithic DC-DC converters. These devices consist of an internal temperature compensated reference, comparator, a controlled duty cycle oscillator with an active current limit circuit, a driver and a high current output switch. This series was specifically designed to be incorporated in Step-Down, Step-Up and Voltage-Inverting applications with a minimum number of external components.Features特点_Operation to 40 V Input_Low Standby Current_Output Switch Current to 1.5 A_Output Voltage Adjustable_Frequency Operation of 150 kHz_Precision 1.5% Reference_New Features: Internal Thermal Shutdown with Hysteresis Cycle-by-Cycle Current Limiting_Pb-Free Packages are AvailableApplications应用_Step-Down, Step-Up and Inverting supply applications_High Power LED Lighting_Battery ChargersPIN DESCRIPTION管脚介绍Pin No. Pin Name Description 1 Switch Collector Internal Darlington switch collector 2 Switch Emitter Internal Darlington switch emitter 3 Timing Capacitor Oscillator Input Timing Capacitor 4 GND Ground pin for all internal circuits 5 Comparator Inverting Input Inverting input pin of internal comparator 6 VCC Voltage Supply 7 Ipk Sense Peak Current Sense Input to monitor the voltage drop across an external resistor to limit the peak current through the circuit 8 N.C. Pin Not Connected Exposed Pad Exposed Pad The exposed pad beneath the package must be connected to GND (Pin 4). Additionally, using proper layout techniques, the exposed pad can greatly enhance the power dissipation capabilities of the NCP3063. 应用电路：降压应用电路，输入12V，输出3.3V/0.8A升压应用电路:输入12V,输出24V/0.35A电压反转电路,输入5V,输出-12V/0.1A场效应管扩流升压电路,输入8-18V,输出31V/0.35A场效应管扩流降压电路,输入8-19V,输出3.3V/3A三极管扩流降压应用电路,输入8-19V,输出3.3V/1A
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