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发布者:来自网络 发布时间:2014-4-24 阅读:2736次    关键字: LDO
EUP7913A-300mA,低静态电流,低噪声LDO稳压器,无需旁路电容


EUP7913A-300mA,低静态电流,低噪声LDO稳压器,无需旁路电容 DataSheet 

概述

EUP7913/A是低静态电流、低噪声LDO稳压器,无需噪声旁路电容。该芯片具有高输出精度、超低压差、超低静态电流、高PSRR和快速启动等性能。EUP7913/A在没有噪声旁路电容就能输出很低的噪声,非常适合于RF应用,尤其是适合于手持式和电池供电的设备,EUP7913提供使能控制引脚,引脚电压和TTL逻辑兼容,当使能关断芯片时,静态电流小于1uA,大大降低了待机功耗。另外关键的特性还包括有输出电流限制、过温关断及快速瞬态响应等。
EUP7913/A采用陶瓷电容就可以稳定的工作,采用SOT23-3或SOT23-5小面积封装,可以大大节省电路板的面积。EUP7913/A提供1.2V至3.6V各种输出电压版本。

特点

•  2.5V to 5.5V输入电压范围
•  30µV(rms)输出噪声电压
•  低压差200mV @300mA
•  高PSRR 70dB@1kHz
•  30uA超低静态电流
•  保证300mA输出电流
•  输出采用陶瓷电容就可稳定工作
•  优质的负载和电源瞬态响应
•  过温关断和电流限制保护
•  1.2V至3.6V范围50mV步进的输出电压
•  节省空间的SOT23-3 & SOT23-5封装
•  符合RoHS规范及100% Pb-Free

应用

•  蜂窝式电话
•  相机模组
•  PDA和掌上型电脑
•  个人消费电子产品

EUP7913A-300mA Low-Noise LDO Without Bypass Capacitor 

Description
The EUP7913/A is an efficient CMOS low dropout (LDO) 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 EUP7913/A provides a very low noise output without a bypass capacitor, ideal for RF applications where a clean supply voltage source is
required. Specifically designed for handheld and battery-powered devices, the EUP7913/A provides a TTL-logic-compatible enable pin. When the EUP7913/A is disabled, power consumption drops nearly to zero. Key features include current limit,
thermal shutdown and faster transient response.
The EUP7913/A works with low-ESR ceramic capacitors. Available in the SOT23-3 or SOT23-5 space saving package which reduces the amount of board space necessary for power applications. The EUP7913/A offers wide fixed output voltage versions.

Feature
• 2.5V to 5.5V Input Voltage Range
• 30µV(rms) Output Noise
• 200mV Dropout @ 300mA
• 70dB PSRR at 1kHz No Bypass Capacitor
• Low 30µA Ground Current
• Guaranteed 300mA Output Current
• Stable with a 1µF Ceramic Output Capacitor when VOUT≥1.5V, or 2.2µF when VOUT<1.5V
• Excellent Load/Line Transient
• Thermal Shutdown and Current Limit Protection
• Available 1.2V to 3.6V Fixed Output Voltages(50mV increments)
• Space-Saving SOT23-3 & SOT23-5 Package
• RoHS Compliant and 100% Lead (Pb)-Free

Application
• Cellular Phones
• Camera Modules
• PDA and Palmtop Computers
• Consumer/Personal Electronics

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