1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED) LM1117
FEATURES
Output Current up to 1 A
Low Dropout Voltage ( 700mV at 1A Output Current )
Three Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 2.85V,
3.0V, 3.3V, 5.0V
2.85V Device for SCSI-II Active Terminator
0.04% Line Regulaion, 0.1% Load Regulation
Very Low Quiescent Current
Internal Current andTerminal Limit
Logic-Controlled Electronics Shutdown
Surface Mount Package SOT-223 & TO-263 (D2-Pack)
100% Thermal Limit Burn-In
APPLICATION
Active SCSI Terminators
Portable/Plan Top/Notebook Computers
High Efficiency Linear Regulators
SMPS Post Regulators
ORDERING INFORMATION
Mother B/D Clock Supplies
Package
Disk Drives
Battery Chargers
DESCRIPTION
(X=Output Voltage=1.5V, 1.8V, 2.5V, 2.85V,
'3.0V, 3.3V, 5.0V, Adjustable=AD)
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 700mV at a full load
and
lower as output current decreases. LM1117 is available as an adjustable or fixed 1.5V, 1.8V, 2.5V, 2.85V,
3.0V, 3.3V, and 5.0V output voltages.
The LM1117 is offered in a 3-pin surface mount package SOT-223 & TO-263. 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
HTC
LM1117T
LM1117T-XX
TO-263 (D2)
Device (Marking)
SOT-223
LM1117S
LM1117S-XX
MIN.
UNIT
V
0
7
125
-65
150
Lead Temperature (Soldering, 5 Seconds)
T
SOL
1
CHARACTERISTIC
DC Input Voltage
Operating Junction Temperature Range
SYMBOL
V
IN
T
OPR
Storage Temperature Range
T
STG
MAX.
260
1 2 3
SOT-223 PKG (FRONT VIEW)
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
TO-263 (D2 PKG, FRONT VIEW)
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
1 2 3
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
THERMAL DATA
TYPICAL APPLICATION
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T-
AD(ADJUSTABLE)
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Reference Voltage
V
IN
- V
O
= 2V, I
O
= 100, T
J
= 25
Reference Voltage
I
O
= 10 to 1A, V
IN
- V
O
= 1.4 to 10V
Line Regulation
V
IN
- V
O
= 1.5 to 13.75V, I
O
= 10
Load Regulation
V
IN
- V
O
= 3V, I
O
= 10mA to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
Adjustment Pin Current
V
IN
15V, I
Load
=10
Adjustment Pin Current
Change
Minimum Load Current
V
IN
= 15V
Output Current
V
IN
- V
O
= 5V, T
J
=25
Output Noise (%V
O
)
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
- V
O
= 3V, V
NIPPLE
= 1V
PP
I
O
= 100 , V
IN
=V
OUT
+ 0.8V
I
O
= 500 , V
IN
=V
OUT
+ 0.8V
I
O
= 1A , V
IN
=V
OUT
+ 0.8V
Thermal Regulation
T
A
= 25 30 Pulse
HTC
2
V
1.3
%/W
120
Supply Voltage Rejection
SVR
75
60
I
ADJ
V
IN
- V
O
= 1.4 to 10V, I
O
= 10mA to 1A
1
I
O(MIN)
I
ADJ
50
V
%
I
O
800
950
1200
V
V
D
Dropout Voltage
1.00
1.15
1.0
1
1.1
E
N
0.003
5
1.7
5
0.003
%
V
IN
7
V
V
O
0.3
%
V
O
0.5
%
V
O
0.1
0.4
V
V
O
0.035
0.2
%
V
REF
1.230
1.270
PARAMETER
SYMBOL
V
REF
TEST CONDITION
1.238
1.25
1.262
V
MIN.
TYP.
MAX.
UNIT
PARAMETER
SYMBOL
Thermal Resistance Junction-Case
R
THJ-CASE
15
3
UNIT
SOT-223
TO-263
V
IN
LM1117
100
10
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T-
1.5
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 4.5V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
Line Regulation
V
IN
= 3.9 to 10V, I
O
= 0
Load Regulation
V
IN
= 3.9V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
10V
Output Current
V
IN
= 7.5V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 5.5V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T-
1.8
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 4.5V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
Line Regulation
V
IN
= 3.9 to 10V, I
O
= 0
Load Regulation
V
IN
= 3.9V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
10V
Output Current
V
IN
= 7.5V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 5.5V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
HTC
1.15
V
1.1
1.2
V
Dropout Voltage
V
D
1
1.1
V
1.05
Supply Voltage Rejection
SVR
60
75
V
I
D
5
10
V
IN
7
%
V
O
0.3
%
V
O
0.5
V
O
0.08
0.4
V
O
0.04
0.2
V
V
O
1.475
1.525
V
V
O
1.485
1.5
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
0.003
%/W
TYP.
MAX.
UNIT
V
950
1200
1.515
E
N
100
I
O
800
PARAMETER
SYMBOL
TEST CONDITION
MIN.
1.828
V
O
1.782
1.8
1.818
0.4
V
V
O
0.04
0.2
V
O
1.772
V
O
0.5
%
V
O
0.08
10
%
V
IN
7
V
V
O
0.3
I
O
800
950
1200
I
D
5
Supply Voltage Rejection
SVR
60
75
E
N
100
Dropout Voltage
V
D
1
1.1
1.1
V
1.05
1.15
V
3
1.2
V
0.003
%/W
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-2.5
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 4.5V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
Line Regulation
V
IN
= 3.9 to 10V, I
O
= 0
Load Regulation
V
IN
= 3.9V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
10V
Output Current
V
IN
= 7.5V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 5.5V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-2.85
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 4.85V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 4.25 to 10V
Line Regulation
V
IN
= 4.25 to 10V, I
O
= 0
Load Regulation
V
IN
= 4.25V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
10V
Output Current
V
IN
= 7.85V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 5.85V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
HTC
1.2
V
0.003
%/W
1.1
V
1.05
1.15
V
Dropout Voltage
V
D
1
1.1
Supply Voltage Rejection
SVR
60
75
E
N
100
V
IN
I
D
5
10
I
O
800
950
1200
0.08
V
O
0.3
%
V
2.821
2.805
7
V
O
V
O
0.5
%
V
O
V
O
0.01
0.1
V
1.1
0.4
1.2
V
%/W
2.895
V
E
N
Dropout Voltage
V
D
1
1.1
1.05
Supply Voltage Rejection
SVR
60
75
I
O
800
950
1200
100
V
2.879
V
1.15
PARAMETER
SYMBOL
TEST CONDITION
MIN.
5
10
TYP.
MAX.
UNIT
2.85
%
V
IN
7
V
V
O
0.3
V
O
0.5
%
V
O
0.08
0.4
0.04
0.2
V
O
2.46
2.54
2.5
2.525
V
V
PARAMETER
SYMBOL
TEST CONDITION
MIN.
UNIT
MAX.
TYP.
2.475
V
O
I
D
V
O
V
O
0.004
0.2
4
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-3.0
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 5V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 4.5 to 10V
Line Regulation
V
IN
= 4.5 to 12V, I
O
= 0
Load Regulation
V
IN
= 4.5V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
12V
Output Current
V
IN
= 8V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 6V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-3.3
(Refer to the test circuits, T
J
=0 to 125 C
O
=10 unless otherwise specified)
Output Voltage
V
IN
= 5.3V, I
O
= 10, T
J
= 25
Output Voltage
I
O
= 0 to 1A, V
IN
= 4.75 to 10V
Line Regulation
V
IN
= 4.75 to 15V, I
O
= 0
Load Regulation
V
IN
= 4.75V, I
O
= 0 to 1A
Temperature Stability
Long Term Stability
1000 hrs, T
J
= 125
Operating Input Voltage
I
O
= 100
Quiescent Current
V
IN
15V
Output Current
V
IN
= 8.3V, T
J
= 25
Output Noise Voltage
B = 10 to 10, T
J
= 25
I
O
= 40 , f = 120, T
J
= 25
V
IN
= 6.3V, V
NIPPLE
= 1V
PP
I
O
= 100
I
O
= 500
I
O
= 800
Thermal Regulation
T
A
= 25 30 Pulse
HTC
%/W
0.003
1.15
V
1.1
1.2
V
Dropout Voltage
V
D
1
1.1
V
1.05
Supply Voltage Rejection
SVR
60
75
E
N
100
I
O
800
950
1200
V
I
D
5
10
V
IN
7
%
V
O
0.3
%
V
O
0.5
V
O
0.08
0.4
V
O
0.04
0.2
V
V
O
3.247
3.353
V
V
O
3.267
3.3
3.333
TYP.
MAX.
UNIT
0.003
0.1
PARAMETER
SYMBOL
TEST CONDITION
MIN.
1.15
V
%/W
1.1
1.2
V
Dropout Voltage
V
D
1
1.1
V
1.05
Supply Voltage Rejection
SVR
60
75
E
N
100
I
O
800
950
1200
V
I
D
5
10
V
IN
7
%
V
O
0.3
%
V
O
0.5
V
O
0.08
0.4
V
O
0.04
0.2
V
V
O
2.95
3.05
V
V
O
2.97
3
3.03
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
5
PDF 
ZIP