NCV891330中文资料3 A, 2 MHz Low-Iq Dual-Mode Step-Down Regulator for Automotive数据手册ONSEMI规格书

描述 Description

The NCV891330 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 NCV891330 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
• 3.0 A maximum output current in PWM mode
• Internal N-channel Power Switch
• VIN operating range 3.7 V to 36.5 V
• Logic level Enable pin can be tied to battery
• Fixed Output Voltage of 5.0 V, 4.0 V or 3.3 V
• 2 MHz Free-running Switching Frequency
• NCV Prefix for Automotive Requiring Site and Control Changes
• Withstands Load Dump to 45 V
• +/-2 % Output Voltage Accuracy

应用 Application

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

简介

NCV891330属于集成电路（IC）的DCDC开关稳压器。由ONSEMI制造生产的NCV891330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。