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LR8558-18PSB PDF预览

LR8558-18PSB

更新时间: 2024-10-30 00:31:51
品牌 Logo 应用领域
乐山 - LRC /
页数 文件大小 规格书
11页 647K
描述
Low noise, fast response 500mA LDO regulato

LR8558-18PSB 数据手册

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Leshan Radio Co ., Ltd  
LR8558  
Low noise, fast response 500mA LDO regulator  
General Description  
Features:  
Low Power Consumption: 75uATyp.)  
Low output noise (47uVRMS)  
Standby Mode: 0.1uA  
LR8558 series is a group of positive  
voltage output, low power consumption, low  
dropout voltage regulator.  
LR8558 can provide output value in the  
range of 1.2V~4.5V every 0.1V step. It also  
can be customized on command.  
Low dropout Voltage: 0.46V@500mA (Typ.)  
High Ripple Rejection: 66dB@100Hz (Typ.)  
Low Temperature Coefficient: ±100ppm/°C  
Excellent Line regulation: 0.05%/V  
Build-in chip enable and discharge circuit  
LR8558 includes high accuracy voltage  
reference, error amplifier, current limit circuit  
and output driver module with discharge  
capability.  
Output Voltage Range: 1.2V~4.5V  
(customized on command every 0.1V step)  
LR8558 has excellent load and line  
transient response and good temperature  
characteristics, which can assure the stability  
of chip and power system. And it uses  
trimming technique to guarantee output  
voltage accuracy within±2%.  
Highly Accurate: ±2% (±1% customized)  
Output Current Limit  
Applications  
Power source for cellular phones and  
various kind of PCSs  
LR8558 is available in SOT-23-5, SC-82  
packages which is lead free. It also can  
available in these packages with lead.  
Battery Powered equipment  
Power Management of MP3, PDA, DSC,  
Mouse, PS2 Games  
Reference Voltage Source  
Regulation after Switching Power  
L8558 Ty pical Performance  
LR8558 Typical Application Circuit  
Characteristics:  
LR8558-2.8V Output  
2.9  
2.8  
2.7  
2.6  
2.5  
2.4  
2.3  
2.2  
2.1  
2
LR8558  
0
200  
400  
600  
Iload(mA)  
1/11  

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