1A L.D.O VOLTAGE REGULATOR
FEATURES
Output Current up to 1 A
Low Dropout Voltage (1.2V at 1A Output current)
Three Terminal Adjustable(ADJ) or Fixed 1.2V, 1.5V,
1.8V, 2.5V, 2.85V, 3.3V, 5.0V
Line Regulation typically at 0.1% max.
Load Regulation typically at 0.2% max.
Internal Current and Terminal Protection
Maximum Input Voltage 20V
Surface Mount Package SOT-223, TO-252, SOT-89
100% Thermal Limit Burn-In
Moisture Sensitivity Level 3
SOT-223 PKG
LM1117
TO-252 PKG
SOT-89 PKG
ORDERING INFORMATION
APPLICATION
Active SCSI Terminators
Portable/ Plan Top/ Notebook Computers
High Efficiency Linear Regulators
SMPS Post Regulators
Mother B/D Clock Supplies
Disk Drives
Battery Chargers
Device
Package
LM1117S-ADJ
LM1117S-X.X
SOT-223 3L
LM1117GS-ADJ
LM1117GS-X.X
LM1117RS-ADJ
LM1117RS-X.X
TO-252 3L
LM1117GRS-ADJ
LM1117GRS-X.X
LM1117F-ADJ
LM1117F-X.X
SOT-89 3L
LM1117GF-ADJ
LM1117GF-X.X
X.X = Output Voltage = 1.2V, 1.5V, 1.8V, 2.5V, 2.85V,
3.3V, 5.0V
DESCRIPSION
The LM1117 is a low power positive-voltage regulator designed to meet 1A output current and comply with SCSI-II
specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered
applications, as active terminators for the SCSI bus, and portable computers. The LM1117 features very low
quiescent current and very low dropout voltage of 1V at a full load and lower as output current decreases.
LM1117 is available as an adjustable or fixed 1.2V, 1.5V, 1.8V, 2.5V, 2.85, 3.3V, and 5.0V output voltages. The
LM1117 is offered in a 3-pin surface mount package SOT-223, TO-252 & SOT-89. The output capacitor of 10㎌ or
larger is needed for output stability of LM1117 as required by most of the other regulator circuits.
Absolute Maximum Ratings
(T
A
= 25℃, unless otherwise specified)
CHARACTERISTIC
DC Input Voltage
Lead Temperature (Soldering, 5 seconds)
Operating Junction Temperature Range
Storage Temperature Range
Mar. 2013 Rev. 1.22
-1-
SYMBOL
V
IN
T
SOL
T
OPR
T
STG
MIN.
-
-
-40
-65
MAX.
20
260
125
150
UNIT
V
℃
℃
℃
HTC
1A L.D.O VOLTAGE REGULATOR
Ordering Information
V
OUT
Package
SOT-223
SOT-223
ADJ
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
1.2V
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
1.5V
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
1.8V
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
2.5V
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
2.85V
TO-252
TO-252
SOT-89
SOT-89
LM1117
Package Marking
1117C ADJ
1117GC ADJ
LM1117C ADJ
LM1117GC ADJ
1117C ADJ
1117GC ADJ
1117C 1.2
1117GC 1.2
LM1117C 1.2
LM1117GC 1.2
1117C 1.2
1117GC 1.2
1117C 1.5
1117GC 1.5
LM1117C 1.5
LM1117GC 1.5
1117C 1.5
1117GC 1.5
1117C 1.8
1117GC 1.8
LM1117C 1.8
LM1117GC 1.8
1117C 1.8
1117GC 1.8
1117C 2.5
1117GC 2.5
LM1117C 2.5
LM1117GC 2.5
1117C 2.5
1117GC 2.5
1117C 2.85
1117GC 2.85
LM1117C 2.85
LM1117GC 2.85
1117C 2.85
1117GC 2.85
Order No.
LM1117S-ADJ
LM1117GS-ADJ
LM1117RS-ADJ
LM1117GRS-ADJ
LM1117F-ADJ
LM1117GF-ADJ
LM1117S-1.2V
LM1117GS-1.2V
LM1117RS-1.2V
LM1117GRS-1.2V
LM1117F-1.2V
LM1117GF-1.2V
LM1117S-1.5V
LM1117GS-1.5V
LM1117RS-1.5V
LM1117GRS-1.5V
LM1117F-1.5V
LM1117GF-1.5V
LM1117S-1.8V
LM1117GS-1.8V
LM1117RS-1.8V
LM1117GRS-1.8V
LM1117F-1.8V
LM1117GF-1.8V
LM1117S-2.5V
LM1117GS-2.5V
LM1117RS-2.5V
LM1117GRS-2.5V
LM1117F-2.5V
LM1117GF-2.5V
LM1117S-2.85V
LM1117GS-2.85V
LM1117RS-2.85V
LM1117GRS-2.85V
LM1117F-2.85V
LM1117GF-2.85V
Supplied As
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Status
Active
Contact us
Active
Contact us
Active
Active
Active
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Active
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Active
Active
Active
Contact us
Active
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Active
Active
Active
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Active
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Active
Active
Active
Contact us
Active
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Active
Active
Active
Contact us
Active
Contact us
Active
Active
Mar. 2013 Rev. 1.22
-2-
HTC
1A L.D.O VOLTAGE REGULATOR
Ordering Information
VOUT
Package
SOT-223
SOT-223
3.3V
TO-252
TO-252
SOT-89
SOT-89
SOT-223
SOT-223
5.0V
TO-252
TO-252
SOT-89
SOT-89
Order No.
LM1117S-3.3V
LM1117GS-3.3V
LM1117RS-3.3V
LM1117GRS-3.3V
LM1117F-3.3V
LM1117GF-3.3V
LM1117S-5.0V
LM1117GS-5.0V
LM1117RS-5.0V
LM1117GRS-5.0V
LM1117F-5.0V
LM1117GF-5.0V
Package Marking
1117C 3.3
1117GC 3.3
LM1117C 3.3
LM1117GC 3.3
1117C 3.3
1117GC 3.3
1117C 5.0
1117GC 5.0
LM1117C 5.0
LM1117GC 5.0
1117C 5.0
1117GC 5.0
Supplied As
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
Reel
LM1117
(Continued)
Status
Active
Contact us
Active
Contact us
Active
Active
Active
Contact us
Active
Contact us
Active
Active
Mar. 2013 Rev. 1.22
-3-
HTC
1A L.D.O VOLTAGE REGULATOR
PIN CONFIGURATION
LM1117
SOT-223
TO-252
SOT-89
PIN DESCRIPTION
Pin No.
Name
1
2
3
ADJ/GND
V
OUT
VI
N
SOT-223 / TO-252 / SOT-89
Function
Adjustable / Ground
Output Voltage
Input Voltage
Mar. 2013 Rev. 1.22
-4-
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
LM1117
(T
A
=25℃, C
O
= 10uF 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
13.75V (T
J
= 0 ~ 125℃)
I
O
= 10mA , V
IN
- V
REF
= 1.5V to 12V
I
O
= 10mA to 1A, V
IN
- V
REF
= 2 V
Min.
1.238
1.219
Typ.
1.250
Max.
1.262
1.281
Unit
V
V
%
%
V
uA
uA
mA
mA
%
dB
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℃
I
O
= 1A, f = 120Hz,
V
IN
- V
REF
= 3V, V
RIPPLE
= 1V
PP
60
1000
50
0.5
5
1250
0.003
75
120
5
10
1600
SVR
For 1.2V Output Voltage
Symbol
V
O
V
O
ΔV
LINE
ΔV
LOAD
V
IN
I
D
I
O
E
N
(T
A
=25℃, C
O
= 10uF 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℃)
I
O
= 0mA , 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
㎃
㎃
%
dB
0.1
0.2
0.2
0.4
12
5
1000
1250
0.003
60
75
10
1600
B = 10Hz to 10kHz, T
J
= 25℃
I
O
= 1A, f = 120Hz,
V
IN
- V
O
= 1.5V, V
RIPPLE
= 1V
PP
SVR
Mar. 2013 Rev. 1.22
-5-
HTC
