EUP7905-600mA高PSRR低漏失线性调整器 DataSheet
概述 EUP7905是一款瞬态回应快、高PSRR、大负载电流的低漏失线性调整器。它具有输出精度高,漏失电压很小,低静态电流和快速启动的特点 EUP7905可以在低ESR的陶瓷电容下工作,从而节约了实际应用中PCB板的面积。EUP7905在全负载工作下仅需要2.2uF的陶瓷电容就可以保证稳定性。 当EUP7905检测到故障信号,例如过温关断信号时,芯片会关断功率管并将VOUT通过内部电阻放电止地。 EUP7905为内部固定输出电压,内部输出电压的范围从0.8V到3.6V。其它的关键特性还包括过流保护,过温关断。EUP7905可应用于SOT23-5的封装。
特点 •2.5V到5.5V的输入电压范围 •300mV@600mA的漏失电压 •超快速的瞬态响应 •2.2µF的陶瓷输出电容 •PSRR在1kHz时为70dB •120µA的静态电流 •关断电流小于1µA •输出电流限制 高精度的输出电压:2%的内部精度 固定输出电压的范围:0.8V~3.6V •热关断 •关断时可对输出电容自动放电 •符合RoHS标准,并且100%无铅和无卤素
应用 •无线网络模块 •电池供电装置 •笔记本计算机
EUP7905-600mA High PSRR Low Dropout Linear Regulator
Description The EUP7905 is a high current, low dropout linear regulator with fast transient response and high PSRR. It offers high output accuracy, extremely low dropout voltage, low quiescent current and fast start-up time. The EUP7905 is designed to work with low-ESR ceramic capacitor, reducing the amount of the PCB area necessary for power applications. Only a 2.2μF ceramic capacitor can make the device stable over the whole load range. When EUP7905 detects fault signal, such as over-temperature, it will turn off the pass transistor and discharge VOUT to GND from the internal resistor. EUP7905 only can be operated in fixed mode, the pre-set valve is from 0.8V~3.6V. Other key features include over-current protection, thermal shutdown. The device can be available in the SOT23-5 package.
Feature •2.5V to 5.5V Input Voltage Range •300mV@600mA Dropout Voltage •Ultra Fast Transient Response •Stable with 2.2μF Ceramic Output Capacitor •70dB PSRR at 1kHz •Low 120μA Quiescent Current •Low Shutdown Current:<1μA •Output Current Limit •Output Voltage With High Accuracy: 2% Initial Accuracy Fixed Output Voltage: 0.8V ~ 3.6V •Thermal Shutdown •COUT Auto-Discharge when Shutdown •RoHS Compliant and 100% Lead (Fb)-Free Halogen-Free
Application •WiFi Modules •Battery-Powered Equipment •Notebook Computers |