型号: LM1117-5.0
厂商: Cystech Electonics Corp. Cystech Electonics Corp.
描述: 1A low dropout positive voltage regulator
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Spec. No. : C506L3  
Issued Date : 2003.03.22  
Revised Date :2005.10.07  
Page No. : 1/4  
CYStech Electronics Corp.  
1A Low Dropout Positive Voltage Regulator  
LM1117L3  
Features  
Description  
Adjustable or Fixed Output  
Output Current of 1A  
The LM1117 series of positive adjustable and fixed  
regulators are designed to provide 1A with high  
efficiency. All internal circuitry is designed to  
operate down to 1.3V input to output differential.  
On-chip trimming adjusts the reference voltage to  
1%.  
Low Dropout, 1.3V max at 1A Output Current  
0.04% Line Regulation  
0.2% Load Regulation  
100% Thermal Limit Burn-in  
Fast Transient Response  
Applications  
High Efficiency Linear Regulators  
Post Regulators for Switching Supplies  
Adjustable Power Supply  
Typical Application Data  
Fixed Voltage Regulator  
TAB  
GND  
VIN>4.75V  
VOUT=3.3V  
3
2
OUT  
IN  
+
C1  
1
C2  
10μF Tant  
10μF Tant.Min  
Adjustable Voltage Regulator  
VIN>4.75V  
IN  
VOUT=3.45V  
TAB  
ADJ  
OUT  
+
+
C1  
C2  
10μF, Tant  
10μF Tant.Min  
VOUT=VREF×(1+R2/R1)+IADJ×R2  
R2  
232 Ohm,1%  
Notes:  
1) C1 needed if device is far from filter capacitors  
2) C2 minimum value required for stability  
LM1117L3  
CYStek Product Specification  

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