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What is LM1117?

This electronic component, produced by the manufacturer "CYStech Electronics", performs the same function as "1A Low Dropout Positive Voltage Regulator".


LM1117 Datasheet PDF - CYStech Electronics

Part Number LM1117
Description 1A Low Dropout Positive Voltage Regulator
Manufacturers CYStech Electronics 
Logo CYStech Electronics Logo 


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CYStech Electronics Corp.
1A Low Dropout Positive Voltage Regulator
LM1117E3 Series
Spec. No. : C506E3
Issued Date : 2014.05.07
Revised Date : 2015.05.13
Page No. : 1/7
Features
Description
Adjustable or Fixed Output
The LM1117 series of positive adjustable and fixed
Output Current of 1A
regulators are designed to provide 1A with high
Low Dropout, 1.4V max at 1A Output Current efficiency. All internal circuitry is designed to
Good Noise Rejection
operate down to 1.4V input to output differential.
Output Current Limiting
Built-in Thermal Shutdown
The product is specifically designed to provide well-
regulated supply for low-voltage IC application such
Fast Transient Response
as high-speed bus termination and low current 3.3V
Can operate using MLCCs in the capacitance range logic supply, and other applications such as VGA cards.
of 2μF to 10μF
Applications
High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Adjustable Power Supply
Typical Application Data
Fixed Voltage Regulator
VIN>4.75V
3
+ C1
C101μF
10μF, T an.
IN
T AB
GND
1
Not es:
1)C1 needed if device is far from filter capacitors
2)C2 minimum value requir ed for stability
Adjustable Voltage Regulator
OUT 2
VOUT=3.3V
+ C2
1100μFF, T an. Min
VIN>4.75V
3
IN
+ CC11
1100μμFF, T an.
T AB
ADJ
1
OUT 2
VOUT =VREF×(1+R2/R1)+IADJ×R2
Not es:
1)C1 needed if device is far from filter capacitors
2)C2 minimum value requir ed for stability
LM1117E3 series
VOUT=3.45V
R1
133Ω,1%
R2
232Ω, 1%
+ CC22
1100μμFF, T an. Min
CYStek Product Specification

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LM1117 equivalent
CYStech Electronics Corp.
Typical Characteristics
Spec. No. : C506E3
Issued Date : 2014.05.07
Revised Date : 2015.05.13
Page No. : 5/7
GND
LM1117E3 series
CYStek Product Specification


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On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LM1117 electronic component.


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