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TECHNICAL DATA
SE1117-X.X
Features
◆ Adjustable and Fixed of 1.8V, 2.5V, 3.3V, 5.0V
◆ Space saving SMD types of SOT-223
◆ Output Current up to 1A
◆ Low Dropout Voltage ( 700mV at 1A Output Current )
◆ Very Low Quiescent Current
◆ Internal Current and Terminal Limit
◆ Output trimmed to ±2% Tolerance
◆ 0.04% Line Regulation, 0.1% Load Regulation
LDO Linear Regulator
SOT-223
SE1117-X.X
ADJ/
GND OUT
IN
1 23
General Description
The SE1117 is a low power positive-voltage regulator designed to meet
1A of output current.
The SE1117 features very low quiescent current and very low dropout
voltage of 700mV at a full load and lower as output current decreases.
The SE1117 is available in four fixed voltages, 1.8V, 2.5V, 3.3V and 5.0V.
Additonally it is also available in adjustable version.
The SE1117 series is offered in a 3-pin SOT-223 packages.
A minimum of 10uF capacitor is required at the output to improve
the transient response and stability.
Applications
◆ Post Regulator for sitching DC/DC Converter
◆ High Efficiency Linear Regulator
◆ Battery Chargers
◆ PC Add on Card
◆ Motherboard clock supplies
Absolute Maximum Ratings
Parameter
Symbol
Value
Units
Input Voltage
Junction Temperature
Storage Temperature
Lead Temperature
VIN(MAX)
TJ
TSTG
TSOL
7
0 ~ +125
-55 ~ +150
Max. 260
V
℃
℃
℃
Electrical Characteristics
(Co = 10uF, Ta = 25℃, unless otherwise specified)
Parameter
Symbol
Test Condition
MIn. Typ. Max. Units
Reference Voltage
VREF
SE1117-AD Only
1.4V<(VIN-VOUT) < 10V, 10mA < IO <1A
1.225
1.250 1.275
V
SE1117-1.8
0 < lOUT < 1A, 3.9V < VIN < 10V
1.764 1.800 1.836 V
Output Voltage
VOUT
SE1117-2.5
0 < lOUT< 1A, 3.9V < VIN < 10V
SE1117-3.3
0 < lOUT < 1A, 4.75V < VIN < 10V
2.450 2.500 2.550 V
3.234 3.300 3.366 V
SE1117-5.0
0 < lOUT < 1A, 6.5V < VIN < 15V
4.900 5.000 5.100 V
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TECHNICAL DATA
SE1117-X.X
Electrical Characteristics
(Vin = 5V, Co = 10uF, Ta = 25℃, unless otherwise specified)
Parameter
Line Regulation
Load Regulation
Dropout Voltage 1
Symbol
dVOUT1
dVOUT2
VDROP1
Test Condition
SE1117-AD
lOUT=10mA, 1.5V < (VIN-VOUT) < 13.5V
SE1117-1.8
lOUT=0mA, 3.9V < VIN < 10V
SE1117-2.5
lOUT=0mA, 3.9V < VIN < 10V
SE1117-3.3
lOUT=0mA, 4.75V < VIN < 15V
SE1117-5.0
lOUT=0mA, 6.50V < VIN < 15V
SE1117-AD
VIN-VOUT=3V, 10mA < lOUT < 1A
SE1117-1.8
VIN=3.9V, 0 < lOUT < 1A
SE1117-2.5
VIN=3.9V, 0 < lOUT < 1A
SE1117-3.3
VIN=4.75V, 0 < lOUT < 1A
SE1117-5.0
VIN=6.5V, 0 < lOUT < 1A
SE1117-AD lOUT=100mA,VIN=VOUT+0.8V
Others
lOUT=100mA
Dropout Voltage 2
VDROP2
SE1117-AD lOUT=1A,VIN=VOUT+0.8V
Others
lOUT=800mA
Quiescent Current
Supply Voltage
Rejection
Adjust Pin Current
Adjust Pin Current
Change
Minimum Load
Current
Long Term
Stability
Output Noise
Voltage
lq
SVR
ladj
lchg
SE1117-1.8, 2.5, 3.3 VIN < 10V
SE1117-5.0
VIN < 15V
SE1117-AD f=120Hz ,VNIPPLE=1VPP,
VIN-VOUT=3V, lout=40mA
SE1117-1.8 f=120Hz ,VNIPPLE=1VPP,
VIN=5.5V, lout=40mA
SE1117-2.5 f=120Hz ,VNIPPLE=1VPP,
VIN=5.5V, lout=40mA
SE1117-3.3 f=120Hz ,VNIPPLE=1VPP,
VIN=6.3V, lout=40mA
SE1117-5.0 f=120Hz ,VNIPPLE=1VPP,
VIN=6.3V, lout=40mA
VIN<15V, lLOAD=10mA
10mA < Iout < 1A
1.4V < VIN - VOUT < 10V
Imin
Stable
Vn
Only SE1117-AD VIN = 15V
TA = 125℃, 1000hrs
SE1117-AD 10Hz < f < 10kHz
Others
10Hz < f < 10kHz
MIn. Typ. Max. Units
- 0.035 0.2 %
- 0.04 0.2 mV
- 0.04 0.2 mV
- 0.04 0.2 mV
- 0.04 0.2 mV
- 0.1 0.4 %
- 0.08 0.4 mV
- 0.08 0.4 mV
- 0.08 0.4 mV
- 0.08 0.4 mV
-
1.0 1.1
V
-
- 1.0 1.3
V
- 1.1 1.2
-
5 10 mA
-
60 75 - dB
- 50 120 uA
- 1 5 uA
1.7 5
- 0.3
0.003
- 100 -
mA
%
%
uV
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