NCV47551中文资料Low Noise LDO Regulator with Adjustable Current Limit and Voltage数据手册ONSEMI规格书

描述 Description

The NCV47551 is a low noise low output current integrated low dropout regulator designed for use in harsh automotive environments. It includes wide operating temperature and input voltage ranges. The device is offered with adjustable voltage versions available in 3% output voltage accuracy. It has a high peak input voltage tolerance and reverse input voltage protection. It also provides overcurrent protection, overtemperature protection and enable for control of the state of the output voltage. The integrated current sense feature provides diagnosis and system protection functionality. The current limit of the device is adjustable by resistor connected to CSO pin. Voltage on CSO pin is proportional to output current.

特性 Features

• Enable Input (3.3 V Logic Compatible Thresholds)
• Save battery life - quiescent current down to 10 µA max.
• Adjustable Voltage Version (from 3.3 V to 20 V)3% OutputVoltage
• Adjustable Current Limit (from 100 µA to 20 mA) with 10% Accuracy
• Protection: Current Limitation, Thermal Shutdown, Reverse Input Voltage

应用 Application

• Microphone Power Supply
• Audio and Infotainment System
• Navigation
• Satellite Radio
• Automotive

简介

NCV47551属于集成电路（IC）的稳压器-线性。由制造生产的NCV47551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。