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LR1122BG-XX-AF5-R PDF预览

LR1122BG-XX-AF5-R

更新时间: 2024-01-11 11:48:53
品牌 Logo 应用领域
友顺 - UTC 稳压器
页数 文件大小 规格书
11页 228K
描述
LOW NOISE 200 mA LDO REGULATOR

LR1122BG-XX-AF5-R 数据手册

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UNISONIC TECHNOLOGIES CO., LTD  
LR1122B  
CMOS IC  
LOW NOISE 200mA LDO  
REGULATOR  
„
DESCRIPTION  
The UTC LR1122B is a typical LDO (linear regulator) with the  
features of High output voltage accuracy, low supply current, low  
ON-resistance, and high ripple rejection.  
During operation of the UTC LR1122B, the dropout voltage is  
very low and the response of line transient and load transient are very  
well.  
Internally, there’re many functions of UTC LR1122B which can be  
seen in the block figure. There are a voltage reference unit, an error  
amplifier, resistor-net for voltage setting, a current limit circuit, and a  
chip enable circuit in each UTC LR1122B.  
The UTC LR1122B can be used as an ideal of the power supply  
for hand-held communication equipment, such as: power source for  
portable communication equipment, power source for electrical  
appliances, for example, cameras, VCRs and camcorders and power  
source for battery-powered equipment.  
„
FEATURES  
*Ultra Supply Current: 18µA (Typ.)  
*Standby Mode: 0.1µA (Typ.)  
*Very Low Dropout Voltage: 0.13V (Typ.) @IOUT =150mA, VOUT =2.85V  
*Ripple Rejection: 75dB (Typ.) @f=1kHz,VOUT=2.85V  
*Temperature-Drift Coefficient of Output Voltage: ±30ppm/°C (Typ.)  
*Well Line Regulation: 0.02%/ V (Typ.)  
*Output Voltage Accuracy: ±0.8% (Typ.)  
*Internal Fold Back Protection Circuit: 40mA (Typ.) @ short mode  
*CIN=COUT=1µF or more (Ceramic capacitors) are Recommended to be used with this IC  
„
ORDERING INFORMATION  
Ordering Number  
Package  
SOT-25  
Packing  
LR1122BG-xx-AF5-R  
Tape Reel  
Note: xx: Output Voltage, refer to Marking Information.  
www.unisonic.com.tw  
1 of 11  
Copyright © 2010 Unisonic Technologies Co., Ltd  
QW-R502-320.B  

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