NCP694中文资料NCP694: Linear Voltage Regulator, VLDO, 1.0 A数据手册ONSEMI规格书

描述 Description

The NCP694 is a CMOS low dropout (LDO) linear voltage regulator, capable of providing 1 A of output current and optimized for output voltages below 1.2 V. It offers features such as excellent load regulation (3 mV typ.) low quiescent current (60 uA typ.) and excellent low dropout performance. A Chip Enable function can be used to place the device in standby mode, thus reducing the current consumption to ultra low levels. Ripple rejection of 70 dB typ. along with a current limit and thermal protection makes this a very robust and versatile device. The part is available in an adjustable version and in fixed voltage options of 0.8 V, 1.0 V, 1.2 V, 2.5 V, 3.3 V and is housed in small but power efficient HSON6 and SOT89 5 pin packages. Other fixed voltage options may be made available on request, from 0.8 V to 5.0 V in 0.1 V increments: please contact your local sales office.

特性 Features

Minimum Output Voltage Down to 0.8 V for Fix Version and 1.0 V for Adjustable Version
Suitable for use in generating low voltage rails for FPGA or MCU devices.
Built in Auto Discharge Function for D Version
Prevents reverse current flow when the device is disabled
Standby Mode With Low Consumption
Excellent choice for battery applications
Other fixed voltage options may be available on request - from 0.8 V to 5.0 V in 0.1 V steps.
Contact the factory for additional voltage options.
Maximum Operating Voltage of 6.0 V
Load Regulation 3 mV at 1 A Output Current

应用 Application

Battery Powered InstrumentsSet top boxes, game consoles, DVD players, cable boxes
Camcorders, Cameras and compute accessories.Portable communication equipment, cable modems

简介

NCP694属于集成电路（IC）的线性+开关稳压器。由制造生产的NCP694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。