1A L.D.O VOLTAGE REGULATOR
FEATURES
Output Current up to 1A
Dropout Voltage is 1.2V at Output current
Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V, 1.8V,
2.5V, 3.3V, and 5.0V
Line Regulation typically at 0.1% typ.
Load Regulation typically at 0.2% typ.
Internal Current and Terminal Protection
Surface Mount Package SOT-223-3L
Moisture Sensitivity Level 3
LM1117GS
SOT-223-3L
APPLICATIONS
Active SCSI Terminators
Portable/ Plan Top/ Notebook Computers
High Efficiency Linear Regulators
SMPS Post Regulators
Mother B/D Clock Supplies
Disk Drives
Battery Chargers
ORDERING INFORMATION
Device
LM1117GS-ADJ
LM1117GS-x.x
Package
SOT-223-3L
x.x: Output Voltage = 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V
DESCRIPTION
The LM1117GS is a low power positive-voltage regulator designed to meet 1A output current. This device is an
excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable
computers. The LM1117GS features very low quiescent current and very low dropout voltage of 1.2V at a full load
and lower as output current decreases. LM1117GS is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V,
3.3V, and 5.0V output voltages. The LM1117GS is offered in a 3-pin surface mount package SOT-223-3L. The
output capacitor of 10µF or larger is needed for output stability of LM1117GS as required by most of the other
regulator circuits.
ABSOLUTE MAXIMUM RATINGS
CHARACTERISTIC
Input Supply Voltage
Lead Temperature
Storage Temperature Range
Operating Junction Temperature Range
SYMBOL
V
IN
T
SOL
T
STG
T
OPR
MIN.
-
-
-65
-40
MAX.
20
260
150
125
UNIT
V
°C
°C
°C
Oct. 2019 – Rev 1.1
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HTC
1A L.D.O VOLTAGE REGULATOR
ORDERING INFORMATION
V
OUT
ADJ
1.2V
1.5V
1.8V
2.5V
3.3V
5.0V
LM1117GS
Package
SOT-223-3L
SOT-223-3L
SOT-223-3L
SOT-223-3L
SOT-223-3L
SOT-223-3L
SOT-223-3L
Order No.
LM1117GS-ADJ
LM1117GS-1.2
LM1117GS-1.5
LM1117GS-1.8
LM1117GS-2.5
LM1117GS-3.3
LM1117GS-5.0
Supplied As
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Status
Active
Active
Active
Active
Active
Active
Active
Oct. 2019 – Rev 1.1
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HTC
1A L.D.O VOLTAGE REGULATOR
PIN CONFIGURATION
LM1117GS
SOT-223-3L
PIN DESCRIPTION
SOT-223-3L
Pin No.
Name
1
2
3
ADJ / GND
V
OUT
V
IN
Function
Adjustable / Ground
Output Voltage
Input Voltage
TYPICAL APPLICATION CIRCUITS
- Fixed Version
Vin
VIN
OUT
Vout
- Adjustable Version
Vin
VIN
OUT
Vout
ADJ
C
IN
10µF
C
OUT
10µF
ADJ
C
IN
10µF
R1
C
OUT
10µF
R2
Oct. 2019 – Rev 1.1
3/12
HTC
1A L.D.O VOLTAGE REGULATOR
ELECTRICAL CHARACTERISTICS
For ADJ Output Voltage
Symbol
V
REF
V
REF
ΔV
LINE
ΔV
LOAD
V
IN
I
ADJ
ΔI
ADJ
I
O(MIN)
I
O
E
N
LM1117GS
(T
J
=25°C, C
OUT
= 10µF unless otherwise specified)
Parameters
Reference Voltage
Reference Voltage
Line Regulation
Load Regulation
Operating Input Voltage
Adjustment pin Current
Adjustment Pin Current
Change
Minimum Load Current
Current Limit
Output Noise(%V
O
)
Supply Voltage Rejection
Condition
V
IN
= 5V, I
O
= 10mA
I
O
= 10mA to 1A, V
IN
- V
REF
= 1.5V to
12V (T
J
= 0 ~ 125°C)
I
O
= 10mA , V
IN
- V
REF
= 1.5V to 12V
I
O
= 10mA to 1A, V
IN
- V
REF
= 2V
Min.
1.238
1.219
Typ.
1.250
Max.
1.262
1.281
Unit
V
V
%
%
V
µA
µA
mA
mA
0.1
0.2
0.2
0.4
12
V
IN
- V
REF
= 1.5V to 12V, I
O
= 100mA
V
IN
- V
REF
= 1.5V to 12V,
I
O
= 100mA to 1A
V
IN
= 5V, V
REF
= 0V
V
IN
- V
REF
= 5V
B = 10Hz to 10kHz, T
J
= 25°C
I
O
= 1A, f = 120Hz,
V
IN
- V
REF
= 3V, V
RIPPLE
= 1V
PP
60
1000
50
0.5
5
120
5
10
0.003
75
%
dB
SVR
For 1.2V Output Voltage
Symbol
V
O
V
O
ΔV
LINE
ΔV
LOAD
V
IN
I
D
I
O
E
N
(T
J
=25°C, C
OUT
= 10µF unless otherwise specified)
Parameters
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise(%V
O
)
Supply Voltage Rejection
V
IN
- V
O
= 5V
V
IN
- V
O
= 5V
Condition
V
IN
= 2.7V, I
O
= 10mA
V
IN
= 2.7V to 12V, I
O
= 0mA to 1A
(T
J
= 0 ~ 125°C)
I
O
= 10mA , V
IN
= 2.7V to 12V
I
O
= 10mA to 1A, V
IN
= 3.2V
Min.
1.176
1.152
Typ.
1.200
Max.
1.224
1.248
Unit
V
V
%
%
V
mA
mA
0.1
0.2
0.2
0.4
12
5
1000
0.003
60
75
10
B = 10Hz to 10kHz, T
J
= 25°C
I
O
= 1A, f = 120Hz,
V
IN
- V
O
= 1.5V, V
RIPPLE
= 1V
PP
4/12
%
dB
SVR
Oct. 2019 – Rev 1.1
HTC
1A L.D.O VOLTAGE REGULATOR
For 1.5V Output Voltage
Symbol
V
O
V
O
ΔV
LINE
ΔV
LOAD
V
IN
I
D
I
O
E
N
LM1117GS
(T
J
=25°C, C
OUT
= 10µF unless otherwise specified)
Parameters
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise(%V
O
)
Supply Voltage Rejection
V
IN
- V
O
= 5V
V
IN
- V
O
= 5V
Condition
V
IN
= 3.0V, I
O
= 10mA
V
IN
= 3.0V to 12V, I
O
= 0mA to 1A
(T
J
= 0 ~ 125°C)
I
O
= 10mA , V
IN
= 3.0V to 12V
I
O
= 10mA to 1A, V
IN
= 3.5V
Min.
1.485
1.470
Typ.
1.5
Max.
1.515
1.530
Unit
V
V
%
%
V
mA
mA
0.1
0.2
0.2
0.4
12
5
1000
100
60
75
10
B = 10Hz to 10kHz, T
J
= 25°C
I
O
= 1A, f = 120Hz,
V
IN
- V
O
= 3V, V
RIPPLE
= 1V
PP
µV
dB
SVR
For 1.8V Output Voltage
Symbol
V
O
V
O
ΔV
LINE
ΔV
LOAD
V
IN
I
D
I
O
E
N
(T
J
=25°C, C
OUT
= 10µF unless otherwise specified)
Parameters
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Operating Input Voltage
Quiescent Current
Current Limit
Output Noise(%V
O
)
Supply Voltage Rejection
V
IN
- V
O
= 5V
V
IN
- V
O
= 5V
Condition
V
IN
= 3.3V, I
O
= 10mA
V
IN
= 3.3V to 12V, I
O
= 0mA to 1A
(T
J
= 0 ~ 125°C)
I
O
= 10mA , V
IN
= 3.3V to 12V
I
O
= 10mA to 1A, V
IN
= 3.8V
Min.
1.782
1.764
Typ.
1.8
Max.
1.818
1.836
Unit
V
V
%
%
V
mA
mA
0.1
0.2
0.2
0.4
12
5
1000
100
60
75
10
B = 10Hz to 10kHz, T
J
= 25°C
I
O
= 1A, f = 120Hz,
V
IN
- V
O
= 3V, V
RIPPLE
= 1V
PP
µV
dB
SVR
Oct. 2019 – Rev 1.1
5/12
HTC
