NCP1034中文资料100V同步降压控制器数据手册ONSEMI规格书

描述 Description

The NCP1034 is a high voltage PWM controller designed for high performance synchronous Buck dc-dc applications. The NCP1034 drives a pair of external N-MOSFETs using a programmable switching frequency up to 500 kHz which allows flexibility to tune the operation of the IC to meet system level requirements. An external synchronization feature allows the simplification of system level filter design. The output voltage can be precisely regulated using the internal 1.25 V reference voltage for low voltage applications. Protections such as under voltage lockout and hiccup current limit are provided to give required system level security in the event of a fault.

特性 Features

• Input voltage up to 100V
• Wide input voltage to be used with +48V or +60V input
• 2 A Output Drive Capability
• Ability to use larger size FETs for increased efficiency
• 1.25 V +/-1.5% feedback voltage across temperature
• Excellent system level accuracy across temperature
• External Frequency Synchronization
• Ability to sync to external frequency or output a sync pulse
• Programmable switching frequency up to 500 kHz
• Optimization for efficiency and size

应用 Application

• 48 V Non-Isolated DC-DC Converter
• Distributed Point of Load Power Architectures
• General High Voltage DC-DC Converters
• Embedded Telecom Systems
• Networking and Computing Voltage Regulator

简介

NCP1034属于集成电路（IC）的DC-DC开关控制器。由制造生产的NCP1034DC-DC 开关控制器PMIC（电源管理集成电路）DC 到 DC 开关式控制器是用于高效率电路的稳压 IC，其配置为生成高于（突升或步升）或低于（突降或步降）输入电源的输出电源电压。其他拓扑结构可能包括：降压-升压、反激、正激、Cuk、SEPIC、全桥、半桥和推挽式。这些器件不同于需要最小电压并“烧尽”多余电压的线性稳压器。