MPQ9840数据手册集成电路（IC）的稳压器-DC-DC开关稳压器规格书PDF

描述 Description

The MPQ9840 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with built-in power MOSFETs. It offers a very compact solution to achieve a 3.5A continuous output current with excellent load and line regulation over a 3.3V-to-36V wide input supply range. The switching frequency is programmable or synchronized to external clock in the range of 350kHz to 2.5MHz. The synchronous operation and ultralow 14uA sleep mode quiescent current makes the efficiency high over the output current load range, allowing using a variety of step-down applications in automotive input environment and battery-powered applications.Peak current mode operation provides fast transient response and eases loop stabilization.The excellent low-dropout performance, allows the use in high duty cycle application.Full protection features include over-current, short circuit protection and thermal shut down.An open drain power good signal indicates the output is within 10% of its nominal voltage.\r
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The MPQ9840 is available in a space-saving QFN-16(3mmx4mm) package.

特性 Features

• 2μA Low Shutdown Supply Current\r
• 14μA no load Quiescent Current\r
• Internal 125mΩ High-Side and 55 mΩ Low-Side MOSFET\r
• 350kHz to 2.5MHz Programmable Switching Frequency\r
• Power Good Output\r
• External Soft-Start\r
• 80ns Minimum On Time\r
• Selectable Forced CCM and AAM mode\r
• Hiccup Over Current Protection\r
• AECQ-100 Grade-1

应用 Application

• Automotive Systems\r
• Industrial Power Systems \r

简介

MPQ9840属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的MPQ9840稳压器 - DC-DC 开关稳压器DC-DC 开关稳压器 PMIC（电源管理集成电路）产品族中的产品是元器件级设备，用于需要稳定 DC 输入电压和/或将其转换为不同幅度的输出电压的应用。这些器件与称为“控制器”PMIC 的类似产品的区别在于集成了主开关元件，设备提供的电力会通过该元件。