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发布者:来自网络 发布时间:2014/4/25 阅读:2937次   
EUP7915-150mA,低噪声,低压差线性稳压器,采用SOT23-5封装


EUP7915-150mA,低噪声,低压差线性稳压器,采用SOT23-5封装 DataSheet 

概述

EUP7915是一款为超低噪声优化设计的高效CMOS线性稳压器,它还具有高输出精度、极低压差、低静态电流和快速启动等特性。

EUP7915输出很低的噪声电压,应用于需要干净电压源的RF电路是非常理想的,一个旁路噪声的引脚可以用来大大地降低输出噪声。 这款器件为手持式和电池供电的设备特别设计,它提供了与TTL逻辑兼容的使能控制引脚,当使能关断时,功耗下降至几乎为零。EUP7915采用SOT23-5封装,它可以在使用低ESR的陶瓷电容时正常工作,大大节省了PCB板空间,这对手持式无线设备是非常重要的。

EUP7915能提供很宽范围的输出电压。关键特性还包括电流限制、过温关断保护和快速瞬态响应。

特点

•  SOT23-5封装
•  2.5V至5.5V输入电压范围
•  50μVrms输出噪声
•  150mA负载时140mV低压差
•  在1kHz时,达到75dB的PSRR
•  70μA低地电流
•  能提供150mA输出电流
•  稳定工作于1μF陶瓷电容
•  优异的负载和电源瞬态响应
•  热关断和电流限制保护
•  输出电压:1.2V、1.5V、1.8V、2.5V、2.8V、2.85V、2.9V、3.0V、3.3V 和可调输出电压
•  符合RoHS规范及Pb-Free

应用

•  蜂窝电话
•  蓝牙便携式设备
•  PDA、掌上型电脑
•  个人消费电子

EUP7915-150mA Low-Noise LDO in SOT23-5 

Description
The EUP7915 is an efficient, CMOS voltage regulator optimized for ultra-low-noise applications. It offers high output accuracy, extremely low dropout voltage low ground current and fast start-up time. The EUP7915 provides a very low noise output, ideal for RF applications where a clean voltage source is required. A noise bypass pin is also available for further reduction of output noise.
Designed specifically for handheld and battery- powered devices, the EUP7915 provides a TTL-logic-compatible enable pin. When disabled, power consumption drops nearly to zero. The EUP7915 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in handheld wireless devices.
Available in the SOT23-5 package, the EUP7915 offers a wide range of output voltages. Key features include current limit, thermal shutdown and faster transient response.

Feature
• 5-pin SOT23-5 Package
• 2.5V to 5.5V Input Voltage Range
• 50μV(rms) Output Noise
• 140mV Dropout @ 150mA
• 75dB PSRR at 1kHz
• Low 70μA Ground Current
• 150mA Output Current
• Stability with 1μF Ceramic Output Capacitors
• Excellent Load/Line Transient
• Thermal Shutdown and Current Limit Protection
• Available in 1.2V,1.5V,1.8V,2.5V,2.8V,2.85V,2.9V, 3.0V,3.3V and Adjustable Voltages
• RoHS Compliant and 100% Lead (Pb)-Free

Application
• Cellular Phones
• Bluetooth Portable Radios and Accessories
• PDA and Palmtop Computers
• Consumer/Personal Electronics

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