NCV4949C中文资料Linear Voltage Regulator, LDO, 100 mA, with Reset and Sense数据手册ONSEMI规格书

描述 Description

The NCV4949C is a monolithic integrated 5.0 V voltage regulator with a very low dropout and additional functions such as reset and an uncommitted voltage sense comparator. It is designed for supplying microcontroller/microprocessor controlled systems particularly in automotive applications. The NCV4949C has improved reset behavior for lower input and output voltage levels.

特性 Features

• Very Low Dropout Voltage Less Than 0.4V
• Operates at lower input voltage during cranking.
• Integrated Voltage Sense Comparator and Power On Reset
• Decrease BOM cost and save space while managing microcontroller power management
• Programmable Reset Pulse Delay With External Capacitor
• Design flexibility
• Integrated Protections: - Thermal Shutdown- Short CircuitTransient Input Voltage Up to 60V
• Suitable in harsh automotive environment
• 5.0V / 100mA High Precision Standby Output Voltage +/- 1% at 25C ambient temperature

应用 Application

• Powertrain and Engine Control
• Body and Chassis
• Automotive

简介

NCV4949C属于集成电路（IC）的线性+开关稳压器。由制造生产的NCV4949C稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。