NCV891130中文资料1.2 A，2 MHz 低 Iq 双模式步降稳压器，用于汽车数据手册ONSEMI规格书

描述 Description

The NCV891130 is a Dual Mode regulator intended for Automotive, battery-connected applications that must operate with up to a 45V input supply. Depending on the output load, it operates either as a PWM Buck Converter or as a Low Drop-Out Linear Regulator, and is suitable for systems with low noise and Low Quiescent Current requirements often encountered in automotive driver information systems. A reset pin (with fixed delay) simplifies interfacing with a microcontroller.
The NCV891130 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

• 30 µA Iq in Light Load Condition
• Low Iq linear mode at light load
• 1.2 A maximum output current in PWM mode
• Efficient switching mode up to 1.2 A
• Internal N-channel Power Switch
• No external Mosfet needed
• VIN operating range 3.7 V to 36.5 V
• Designed to run on car battery
• Logic level Enable pin can be tied to battery
• Versatile EN pin
• Fixed Output Voltage of 5.0 V, 4.0 V or 3.3 V
• Simplified design
• 2 MHz Free-running Switching Frequency
• Smaller inductor and capacitors, faster response, smaller ripple
• NCV Prefix for Automotive Requiring Site and Control Changes
• PPAP available
• Withstands Load Dump to 45 V
• +/-2 % Output Voltage Accuracy

应用 Application

• Radio
• Infotainment
• Instrument clusters
• Telematics
• Safety - Vision Systems
• Automotive

简介

NCV891130属于集成电路（IC）的稳压器-DC-DC开关稳压器。由制造生产的NCV891130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。