NCP752中文资料Voltage Regulator, LDO, Ultra-Low Iq, Ultra -Low Noise, 200 mA, with Power-Good Flag数据手册ONSEMI规格书

描述 Description

Noise sensitive applications and precision instrumentation require very clean power supplies. The NCP752 is a 200mA LDO that provides the engineer with a very stable, accurate voltage with ultra-low noise and high Power Supply Rejection. The device doesn't require any additional noise bypass capacitor to achieve ultra-low noise levels. In order to optimize the performace for battery operated applications, the NCP752 employs the Auto Low-Power Function for Ultra-Low Quiescent Current consumption.

特性 Features

• Operating Input Voltage: 2.0V to 5.5V
• Well suited for battery powered applications
• Ultra-Low Output Noise: Typ. 11uVrms
• Very well suited for noise sensitive applications.
• Ultra-Low No-Load Ground Current of Typ. 10uVrms
• Improved efficiency during light-load conditions
• Adaptive Ground Current Feature
• Improved dynamic performance
• Available Fixed Output Voltage Options: 0.8V to 3.5V
• Sub-bandgap output voltages avaliable
• Enable/Shutdown Pin Function
• Allows to turn ON/OFF the Regulator using logic I/O signal
• Ultra-Low Shutdown Mode Current: Max. 1uA
• Minimizes battery drain when placed in the Shutdown Mode
• Active Output Discharge
• Fast Output Voltage Turn-off
• Ouput Short Circuit and Current Limit Protection
• Assures robust design
• Thermal Shutdown Protection
• Protects from overheating
• Power-Good Output Flag
• Provides Output Voltage monitoring function
• 2% Output Voltage Accuracy over load/line and temperature conditions
• Assures Precise Output Voltage

应用 Application

• Low Power Sensor Power Supplies
• Noise Sensitive Applications
• Low Power MCU Power Supply
• Low Power FPGAs, DSPs
• Portable Devices
• Wireless Headsets
• Precision Instrumentation
• Computing Products

简介

NCP752属于集成电路（IC）的线性+开关稳压器。由制造生产的NCP752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。