NCP3334中文资料Linear Voltage Regulator, LDO, Low Iq, 500 mA (Adjustable Output)数据手册ONSEMI规格书

描述 Description

The NCP3334 is a high performance, low dropout (LDO) linear voltage regulator. With accuracy of +/-0.9% over line and load and ultra-low quiescent current and noise it encompasses all of the necessary features required by today's consumer electronics. This unique device is guaranteed to be stable without a minimum load current requirement and stable with any type of capacitor as small as 1.0 µF. The NCP3334 offers reverse bias protection.

特性 Features

• High Accuracy Over Line and Load (±0.9% at 25°C)
• Low Dropout Voltage of 340 mV maximum at 500 mA
• Low Noise of 38 µVrms
• Low Shutdown Current (0.07 µA)
• Reverse Bias Protected
• 2.6 V to 12 V Supply Range
• Thermal Shutdown Protection
• Current Limitation
• Requires only 1.0 uF Output Capacitance for Stability
• Stable with any type of capacitor, including MLCC
• No Minimum Output Current Required for Stability
• This is a Pb Free Device

应用 Application

• PCMCIA Card
• Cellular Phones
• Camcoders and Cameras
• Networking Systems, DSL/Cable Modems
• Cable Set-Top Box
• MP3/CD Players
• Displays and Monitors

简介

NCP3334属于集成电路（IC）的线性+开关稳压器。由ONSEMI制造生产的NCP3334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。