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LDS3985M47R PDF预览

LDS3985M47R

更新时间: 2024-02-17 20:37:12
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 输出元件信息通信管理
页数 文件大小 规格书
13页 341K
描述
ULTRA LOW DROP-LOW NOISE BICMOS 300mA V.REG. FOR USE WITH VERY LOW ESR OUTPUT CAPACITOR

LDS3985M47R 数据手册

 浏览型号LDS3985M47R的Datasheet PDF文件第2页浏览型号LDS3985M47R的Datasheet PDF文件第3页浏览型号LDS3985M47R的Datasheet PDF文件第4页浏览型号LDS3985M47R的Datasheet PDF文件第5页浏览型号LDS3985M47R的Datasheet PDF文件第6页浏览型号LDS3985M47R的Datasheet PDF文件第7页 
LDS3985  
SERIES  
ULTRA LOW DROP-LOW NOISE BICMOS 300mA V.REG.  
FOR USE WITH VERY LOW ESR OUTPUT CAPACITOR  
INPUT VOLTAGE FROM 2.5V TO 6V  
STABLE WITH LOW ESR CERAMIC  
CAPACITORS  
ULTRA LOW DROPOUT VOLTAGE (150mV  
TYP. AT 300mA LOAD, 0.4mV TYP. AT 1mA  
LOAD)  
VERY LOW QUIESCENT CURRENT (85µA  
TYP. AT NO LOAD, 200µA TYP. AT 300mA  
LOAD; MAX 1.5µA IN OFF MODE)  
GUARANTEED OUTPUT CURRENT UP TO  
300mA  
WIDE RANGE OF OUTPUT VOLTAGE:  
1.25V; 1.35; 1.5V; 1.8V; 2V; 2.1V; 2.2V; 2.5V;  
2.6V; 2.7V; 2.8V; 2.85V; 2.9V; 3V; 3.1V; 3.2V;  
3.3V; 4.7V  
DFN6  
SOT23-5L  
It is stable with ceramic and high quality tantalum  
capacitor. The ultra low drop-voltage, low  
quiescent current and low noise makes it suitable  
for low power applications and in battery powered  
systems. Regulator ground current increases only  
slightly in dropout, further prolonging the battery  
life. Shutdown Logic Control function is available,  
this means that when the device is used as local  
regulator, it is possible to put a part of the board in  
standby, decreasing the total power consumption.  
Typical applications are in mobile phone and  
similar battery powered wireless systems,  
portable information appliances.  
FAST TURN-ON TIME: TYP. 240µs  
[C =2.2µF, C  
= 33nF AND I =1mA]  
O
BYP  
O
LOGIC-CONTROLLED ELECTRONIC  
SHUTDOWN  
INTERNAL CURRENT AND THERMAL LIMIT  
OUTPUT LOW NOISE VOLTAGE 30µV  
OVER 10Hz to 100KHz  
RMS  
S.V.R. OF 55dB AT 1KHz, 50dB AT 10KHz  
TEMPERATURE RANGE: -40°C TO 125°C  
DESCRIPTION  
The LDS3985 provides up to 300mA, from 2.5V to  
6V input voltage.  
Figure 1: Schematic Diagram  
Rev. 1  
1/13  
December 2004  

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