NCP3170中文资料Buck Regulator, Switching, PWM, 3.0 A数据手册ONSEMI规格书

描述 Description

The NCP3170 is a flexible synchronous PWM Switching Buck Regulator. The NCP3170 operates from 4.5 V to 18 V, producing up to 3 A and is capable of producing output voltages as low as 0.8 V. The NCP3170 also incorporates current mode control. To reduce the number of external components, a number of features are internally set including soft start, power good detection, and switching frequency. The NCP3170 is currently available in an SOIC-8 package.

特性 Features

• 4.5 V to 18 V Operating Input Voltage Range
• Wide input voltage range
• 90mΩ High-Side, 24mΩ Low-Side MOSFET
• Very high efficiency at low output voltages
• Output Voltage Adjustable to 0.8 V
• Ability to regulate low output voltages
• 3 A Continuous Output Current
• High current output
• Fixed 500 kHz and 1 MHz PWM Operation
• Scale for efficiency or physical size
• 1.5% Initial Output Accuracy
• Easy to design accurate system regulation
• Internal 4 ms SoftStart
• Reduced external components
• ShortCircuit Protection
• Protection feature
• Thermal Shutdown
• Protection feature
• Light Load Efficiency
• Enhanced efficiency at lower output current
• Dedicated PowerGood and ENABLE pin
• Built-in power sequencing capability

应用 Application

• Point of Load (POL) DC/DC Regulator
• Set-Top-Box (STB)
• LCD-TV / DTV
• Telecom / Datacom / Networking
• PCIe Graphics Cards

简介

NCP3170属于开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS。由制造生产的NCP3170评估板 - DC/DC 与 AC/DC（离线）SMPS该系列产品提供了一种方便的方法，可对开关模式电源转换所用的器件（包括 DC-DC 和 AC-DC 型）进行性能或特性评估。“稳压器”（包含内部电源开关装置）和“控制器”（设计为控制外部电源开关）之类的器件均包括在内。