SMP402SC中文资料1-Watt Buck Regulator IC 20-72 VDC Input Non-isolated DC Output数据手册PI规格书

描述 Description

The SMP402, intended for non-isolated ISDN telecommunications power supply applications, combines a high voltage power MOSFET switch with a switchmode power system controller in a monolithic integrated circuit. Few external components are required to implement a low cost power supply which meets stringent ISDN specifications. High frequency operation reduces total power supply size.Product Highlights
Integrated Power Switch and CMOS Controller
• Output power 1 W from 48 VDC input
• Adjustable output voltage
• Integrated solution minimizes overall sizeHigh-voltage, Low-capacitance MOSFET Output
• Designed for ISDN T1 telecommunications applications
• Low capacitance allows for high frequency operationHigh-voltage Buck Regulator
• Internal pre-regulator self-powers the IC on start-up
• Designed for low power consumption
• Minimum external parts requiredBuilt-In Self-protection Circuits
• Undervoltage lockout
• Thermal shutdown
• Input polarity/level sense