NCP500中文资料Linear Voltage Regulator, LDO, CMOS Low Noise, 150 mA数据手册ONSEMI规格书

描述 Description

The NCP500 Low Dropout (LDO) Linear Voltage Regulator is designed for portable battery powered applications which require low noise operation, fast enable response time, and low dropout. The device achieves its low noise performance without the need of an external noise bypass capacitor. Each device contains a voltage reference unit, an error amplifier, a PMOS power transistor, and resistors for setting output voltage, and current limit and temperature limit protection circuits.The NCP500 LDO Linear Voltage Regulator has been designed to be used with low cost ceramic capacitors and requires a minimum output capacitor of 1.0 mF. Standard voltage versions are 1.8, 2.5, 2.7, 2.8, 3.0, 3.3, and 5.0 V.

特性 Features

• Ultra-Low Dropout Voltage of 170 mV at 150 mA
• Fast Enable Turn-On Time of 20 µsec
• Wide Operating Voltage Range of 1.8 V to 6.0 V
• Excellent Line and Load Regulation
• High Accuracy Output Voltage of 2.5%
• Enable Can Be Driven Directly by 1.0 V Logic
• Very Small QFN 2x2 Package
• Pb-Free Package May be Available.* The G-Suffix Denotes a Pb-Free Lead Finish

应用 Application

• Noise Sensitive Circuits - VCO's, RF Stages, etc.
• SMPS Post-Regulation
• Hand-Held Instrumentation
• Camcorders and Cameras

简介

NCP500属于集成电路（IC）的LED驱动器。由制造生产的NCP500LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。