NCV890430中文资料汽车 0.6 A 2 MHz 100% 占空比步降同步稳压器数据手册ONSEMI规格书

描述 Description

The NCV890430 is a fixed-frequency Synchronous Buck regulator
intended for Automotive, battery-connected applications that operate
with up to a 45 V input supply. It is suitable for automotive systems
requiring low noise and low shutdown currents that also need to
operate at low input voltage close to the output voltage. A reset pin
(with adjustable delay) simplifies interfacing with a microcontroller.
This part also features an enable input that can either be connected to a
low voltage (such as a micro-controller output) or high voltage (such
as the battery input), and a synchronization input.
The NCV890430 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 all-ceramic input output filter capacitors −
forming a space-efficient switching regulator solution.

特性 Features

• Internal 550 mΩ P Channel and 300 mΩ N-Channel Power Switches
• Capable of 100% Duty Cycle Operation
• VIN operating range of 3.5 V to 37 V
• Withstands Load Dump to 45 V
• 2 MHz Free-Running Switching Frequency
• Shutdown Current Less than 10 µA
• High Voltage Enable Pin
• Synchonization Input Pin
• Maximum DC Output Current of at least 0.6A
• Fixed Output Voltage (5.0 V, 3.3 V and 2.5 V Versions)
• ± 2% Output Voltage Accuracy
• DFN Package with Wettable Flanks (Pin Edge Plating Per JEDEC MO220)
• NCV Prefix for Automotive Requiring Site and Control Changes
• Pb-Free

应用 Application

• Automotive Infotainment and Instrumentation
• Automotive Body Applications
• Linear Regulator Replacement
• Rear View Camera
• Automotive

简介

NCV890430属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCV890430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。