NCV890230中文资料Automotive Buck Switching Regulator, 2 A, 2 MHz , 45 V Load Dump数据手册ONSEMI规格书

描述 Description

The NCV890230 is a fixed-frequency, monolithic, Buck switching regulator intended for Automotive, battery-connected applications that must operate with up to a 36V input supply. The regulator is suitable for systems with low noise and small form factor requirements often encountered in automotive driver information systems. The NCV890230 is capable of converting the typical 4.5 V to 18 V automotive input voltage range to outputs as low as 3.3 V at a constant switching frequency above the sensitive AM band, eliminating the need for costly filters and EMI countermeasures. The NCV890230 also provides several protection features expected in Automotive power supply systems such as current limit, short circuit protection, and thermal shutdown. In addition, the high switching frequency produces low output voltage ripple even when using small inductor values and an all-ceramic output filter capacitor - forming a space-efficient switching regulator solution.

特性 Features

• 2 MHz Free-running Switching Frequency
• Internal N-Channel Power Switch
• Low VIN Operation Down to 4.5 V
• High VIN Operation to 32 V
• Withstands Load Dump to 45 V
• Logic level Enable Input Can be Directly Tied to Battery
• 2.2 A (min) Cycle-by-Cycle Peak Current Limit
• Short-Circuit Protection enhanced by Frequency Foldback
• 1.75% Output Voltage Tolerance
• Output Voltage Adjustable Down to 0.8 V
• 1.4 ms Internal Soft-Start
• Thermal Shutdown (TSD)
• Thermally protects IC

应用 Application

• Audio
• Infotainment
• Safety - Vision Systems
• Instrumentation
• Automotive

简介

NCV890230属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCV890230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。