1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED)
FEATURES
● Output Current up to 1 A
● Low Dropout Voltage ( 700mV at 1A Output Current )
LM1117
SOT-223 PKG (FRONT VIEW)
● 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
1
2
3
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
●
●
●
●
●
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
TO-263 (D2 PKG, FRONT VIEW)
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
1
2
3
PIN FUNCTION
1. Adj/Gnd
2. Vout
3. Vin
ORDERING INFORMATION
DESCRIPTION
Device (Marking)
Package
LM1117S
SOT-223
LM1117S-XX
LM1117T
TO-263 (D2)
LM1117T-XX
(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
CHARACTERISTIC
DC Input Voltage
Lead Temperature (Soldering, 5 Seconds)
Storage Temperature Range
Operating Junction Temperature Range
SYMBOL
V
IN
T
SOL
T
STG
T
OPR
MIN.
MAX.
7
260
150
125
UNIT
V
℃
℃
℃
-65
0
HTC
1
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)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 4.5V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
V
IN
= 3.9 to 10V, I
O
= 0㎃
V
IN
= 3.9V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 10V
V
IN
= 7.5V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
1.485
1.475
TYP.
1.5
0.04
0.08
0.5
0.3
5
MAX.
1.515
1.525
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
10
1200
V
㎃
㎃
㎶
㏈
800
950
100
SVR
60
75
1
1.05
1.1
0.003
1.1
1.15
1.2
V
V
V
%/W
Dropout Voltage
Thermal Regulation
V
D
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T-
1.8
(Refer to the test circuits, T
J
=0 to 125℃ C
O
=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 4.5V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
V
IN
= 3.9 to 10V, I
O
= 0㎃
V
IN
= 3.9V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 10V
V
IN
= 7.5V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
1.782
1.772
TYP.
1.8
0.04
0.08
0.5
0.3
MAX.
1.818
1.828
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
5
800
950
100
60
75
1
1.05
1.1
0.003
1.1
1.15
1.2
10
1200
V
㎃
㎃
㎶
㏈
V
V
V
%/W
SVR
Dropout Voltage
Thermal Regulation
V
D
HTC
3
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)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 4.5V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 3.9 to 10V
V
IN
= 3.9 to 10V, I
O
= 0㎃
V
IN
= 3.9V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 10V
V
IN
= 7.5V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
2.475
2.46
TYP.
2.5
0.04
0.08
0.5
0.3
5
MAX.
2.525
2.54
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
10
1200
V
㎃
㎃
㎶
㏈
800
950
100
SVR
60
75
1
1.05
1.1
0.01
1.1
1.15
1.2
0.1
V
V
V
%/W
Dropout Voltage
Thermal Regulation
V
D
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-2.85
(Refer to the test circuits, T
J
=0 to 125℃ C
O
=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 4.85V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 4.25 to 10V
V
IN
= 4.25 to 10V, I
O
= 0㎃
V
IN
= 4.25V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 10V
V
IN
= 7.85V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
2.821
2.805
TYP.
2.85
0.004
0.08
0.5
0.3
MAX.
2.879
2.895
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
5
800
950
100
60
75
1
1.05
1.1
0.003
1.1
1.15
1.2
10
1200
V
㎃
㎃
㎶
㏈
V
V
V
%/W
SVR
Dropout Voltage
Thermal Regulation
V
D
HTC
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)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 5V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 4.5 to 10V
V
IN
= 4.5 to 12V, I
O
= 0㎃
V
IN
= 4.5V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 12V
V
IN
= 8V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
2.97
2.95
TYP.
3
0.04
0.08
0.5
0.3
MAX.
3.03
3.05
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
5
800
950
100
60
75
1
1.05
1.1
0.003
1.1
1.15
1.2
0.1
10
1200
V
㎃
㎃
㎶
㏈
V
V
V
%/W
SVR
Dropout Voltage
Thermal Regulation
V
D
ELECTRICAL CHARACTERISTICS FOR LM1117
S/T
-3.3
(Refer to the test circuits, T
J
=0 to 125℃ C
O
=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
SYMBOL
V
O
V
O
ΔV
O
ΔV
O
ΔV
O
ΔV
O
V
IN
I
D
I
O
E
N
TEST CONDITION
V
IN
= 5.3V, I
O
= 10㎃, T
J
= 25℃
I
O
= 0 to 1A, V
IN
= 4.75 to 10V
V
IN
= 4.75 to 15V, I
O
= 0㎃
V
IN
= 4.75V, I
O
= 0 to 1A
1000 hrs, T
J
= 125℃
I
O
= 100㎃
V
IN
≤ 15V
V
IN
= 8.3V, T
J
= 25℃
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㎃
T
A
= 25℃ 30㎳ Pulse
MIN.
3.267
3.247
TYP.
3.3
0.04
0.08
0.5
0.3
5
MAX.
3.333
3.353
0.2
0.4
UNIT
V
V
㎷
㎷
%
%
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
7
10
1200
V
㎃
㎃
㎶
㏈
800
950
100
SVR
60
75
1
1.05
1.1
0.003
1.1
1.15
1.2
V
V
V
%/W
Dropout Voltage
Thermal Regulation
V
D
5
HTC
PCB Design
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