NCP177中文资料LDO Regulator with Fast Transient Response, 500 mA数据手册ONSEMI规格书

描述 Description

The NCP177 is a Very Low Dropout Regulator which provides up to 0.5 A of load current and maintains excellent output voltage accuracy of 0.8% at 25degC. The operating input voltage range from 1.6 V up to 5.5 V makes this device suitable for Li−ion battery powered products as well as post−regulation applications. The product is available in several fixed output voltage option and others are possible on request in range from 0.7 V to 3.6 V. NCP177 is fully protected against overheating and output short circuit.ENABLE function.
Small 4−pin XDFN4 1.0 mm x 1.0 mm package makes the device especially suitable for space constrained applications.

特性 Features

• 1.6 V to 5.5 V Operating Input Voltage Range
• Several Fixed Output Voltage Options and others available upon request in range from 0.7 V to 3.6 V
• Low Quiescent Current of Typ. 60 µA
• Very Low Dropout: 200 mV Typ. at Iout = 0.5 A (1.8V version)
• High 75 dB at 1 kHz PSRR
• Internal Soft-Start
• ±0.8% Accuracy at Room temperature
• Thermal Shutdown and Current Limit Protections
• Stable with Small 1 µF Ceramic Capacitors
• Saves PCB space and system cost

应用 Application

• Battery Powered Equipment
• Portable Communication Equipment
• Cameras, Image Sensors and Camcorders
• Camera
• Camcorder

简介

NCP177属于集成电路（IC）的线性+开关稳压器。由ONSEMI制造生产的NCP177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。