NCP4683数据手册集成电路（IC）的线性+开关稳压器规格书PDF

描述 Description

The NCP4683 is a CMOS Linear Voltage Regulator with 300 mA output current capability. The device has high output voltage accuracy, low supply current and high ripple rejection. The NCP4683 is easy to use, with output current fold-back protection circuit included. A Chip Enable function is included to save power by lowering supply current. The line and load transient responses are very good, thus this regulator is suitable for use as a power supply for communication equipment.

特性 Features

Operating Input Voltage Range: 1.4 V to 5.25 V
Well suited to battery powered applications
Output Voltage Range: 0.8 V to 3.6 V
Please contact your local office for customized output voltage options
Output Voltage Accuracy: 1%(VOUT > 2 V, TJ = 25°C
Current Fold Back Protection
High PSRR: 70 dB at 1 kHz
Low Dropout Voltage: 250 mV Typ. at 300 mA

应用 Application

Post Power Supply voltage regulation for processors, FPGA, DSPPoint of Load voltage regulationNoise filtering
Battery-powered EquipmentNetworking and Communication EquipmentCameras, DVRs, STB and CamcordersHome Appliances

简介

NCP4683属于集成电路（IC）的线性+开关稳压器。由制造生产的NCP4683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。