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LM1117-3.3的详细信息
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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
●
●
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High Efficiency Linear Regulators
Post Regulators for Switching Supplies
Adjustable Power Supply
Typical Application Data
Fixed Voltage Regulator
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
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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