LM1117S-1.5 [ETC]
1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED); 1A LOWDROP稳压器（可调和固定）
| 型号： | LM1117S-1.5 |
| 厂家： | 
ETC |
| 描述： | 1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED) |
| 文件： | 总8页 (文件大小：108K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED)
LM1117
SOT-223 PKG (FRONT VIEW)
FEATURES
● Output Current up to 1 A
● Low Dropout Voltage ( 700mV at 1A Output Current )
PIN FUNCTION
● 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. Adj/Gnd
2. Vout
3. Vin
1
2
3
● 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)
PIN FUNCTION
1. Adj/Gnd
2. Vout
APPLICATION
3. Vin
● Active SCSI Terminators
● Portable/Plan Top/Notebook Computers
● High Efficiency Linear Regulators
● SMPS Post Regulators
● Mother B/D Clock Supplies
● Disk Drives
1
2
3
ORDERING INFORMATION
Device (Marking)
LM1117S
Package
SOT-223
LM1117S-XX
LM1117T
● Battery Chargers
TO-263 (D2)
LM1117T-XX
(X=Output Voltage=1.5V, 1.8V, 2.5V, 2.85V,
'3.0V, 3.3V, 5.0V, Adjustable=AD)
DESCRIPTION
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
SYMBOL
VIN
MIN.
MAX.
7
UNIT
V
TSOL
Lead Temperature (Soldering, 5 Seconds)
Storage Temperature Range
260
150
125
℃
TSTG
-65
0
℃
TOPR
Operating Junction Temperature Range
℃
HTC
1
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
THERMAL DATA
LM1117
PARAMETER
SYMBOL
RTHJ-CASE
SOT-223
15
TO-263
UNIT
℃
Thermal Resistance Junction-Case
3
TYPICAL APPLICATION
VIN
LM1117
100㎌
10㎌
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-AD(ADJUSTABLE)
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Reference Voltage
SYMBOL
VREF
VREF
ΔVO
ΔVO
ΔVO
ΔVO
VIN
TEST CONDITION
MIN.
TYP.
MAX. UNIT
VIN- VO = 2V, IO = 100㎃, TJ = 25℃
IO = 10 to 1A, VIN- VO = 1.4 to 10V
VIN- VO = 1.5 to 13.75V, IO = 10㎃
VIN- VO = 3V, IO = 10mA to 1A
1.238 1.25 1.262
V
V
1.230
1.270
0.2
Reference Voltage
0.035
0.1
%
%
%
%
V
Line Regulation
0.4
Load Regulation
0.5
Temperature Stability
Long Term Stability
Operating Input Voltage
Adjustment Pin Current
Adjustment Pin Current
Change
1000 hrs, TJ = 125℃
0.3
7
IADJ
VIN ≤ 15V, ILoad =10㎃
50
1
120
㎂
ΔIADJ
VIN- VO = 1.4 to 10V, IO = 10mA to 1A
5
㎂
IO(MIN)
IO
VIN= 15V
1.7
950
5
㎃
㎃
%
Minimum Load Current
Output Current
VIN- VO = 5V, TJ=25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN - VO = 3V, VNIPPLE = 1VPP
IO = 100㎃ , VIN=VOUT+ 0.8V
IO = 500㎃ , VIN=VOUT+ 0.8V
IO = 1A , VIN=VOUT+ 0.8V
TA = 25℃ 30㎳ Pulse
800
60
1200
EN
Output Noise (%VO)
0.003
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.3
V
V
VD
1.00
1.0
Dropout Voltage
V
0.003
%/W
Thermal Regulation
HTC
2
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-1.5
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 4.5V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 3.9 to 10V
VIN = 3.9 to 10V, IO = 0㎃
VIN= 3.9V, IO = 0 to 1A
MIN.
1.485
1.475
TYP.
MAX. UNIT
1.5
1.515
1.525
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 10V
5
10
㎃
㎃
㎶
IO
VIN= 7.5V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 5.5V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
%/W
Thermal Regulation
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-1.8
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 4.5V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 3.9 to 10V
VIN = 3.9 to 10V, IO = 0㎃
VIN= 3.9V, IO = 0 to 1A
MIN.
1.782
1.772
TYP.
1.8
MAX. UNIT
1.818
1.828
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 10V
5
10
㎃
㎃
㎶
IO
VIN= 7.5V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 5.5V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
%/W
Thermal Regulation
HTC
3
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-2.5
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 4.5V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 3.9 to 10V
VIN = 3.9 to 10V, IO = 0㎃
VIN= 3.9V, IO = 0 to 1A
MIN.
2.475
2.46
TYP.
MAX. UNIT
2.5
2.525
2.54
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 10V
5
10
㎃
㎃
㎶
IO
VIN= 7.5V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 5.5V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.01
0.1
%/W
Thermal Regulation
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-2.85
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 4.85V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 4.25 to 10V
VIN = 4.25 to 10V, IO = 0㎃
VIN= 4.25V, IO = 0 to 1A
MIN.
2.821
2.805
TYP.
MAX. UNIT
2.85 2.879
2.895
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.004
0.08
0.5
0.2
0.4
㎷
㎷
%
%
V
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 10V
5
10
㎃
㎃
㎶
IO
VIN= 7.85V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 5.85V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
%/W
Thermal Regulation
HTC
4
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-3.0
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 5V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 4.5 to 10V
VIN = 4.5 to 12V, IO = 0㎃
VIN= 4.5V, IO = 0 to 1A
MIN.
2.97
2.95
TYP.
MAX. UNIT
3
3.03
3.05
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 12V
5
10
㎃
㎃
㎶
IO
VIN= 8V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 6V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
0.1
%/W
Thermal Regulation
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-3.3
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 5.3V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 4.75 to 10V
VIN = 4.75 to 15V, IO = 0㎃
VIN= 4.75V, IO = 0 to 1A
MIN.
3.267
3.247
TYP.
3.3
MAX. UNIT
3.333
3.353
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 15V
5
10
㎃
㎃
㎶
IO
VIN= 8.3V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 6.3V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
%/W
Thermal Regulation
HTC
5
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117 S/T-5.0
(Refer to the test circuits, TJ=0 to 125℃ CO=10㎌ unless otherwise specified)
PARAMETER
Output Voltage
SYMBOL
VO
TEST CONDITION
VIN= 7V, IO = 10㎃, TJ = 25℃
IO = 0 to 1A, VIN= 6.5 to 15V
VIN = 6.5 to 15V, IO = 0㎃
VIN= 6.5V, IO = 0 to 1A
MIN.
4.95
4.92
TYP.
MAX. UNIT
5
5.05
5.08
0.2
V
VO
V
Output Voltage
ΔVO
ΔVO
ΔVO
ΔVO
VIN
0.04
0.08
0.5
㎷
㎷
%
%
V
Line Regulation
0.4
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
1000 hrs, TJ = 125℃
IO = 100㎃
0.3
7
ID
VIN ≤ 15V
5
10
㎃
㎃
㎶
IO
VIN= 8.3V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃
IO = 40㎃ , f = 120㎐, TJ = 25℃
VIN = 6.3V, VNIPPLE = 1VPP
IO = 100㎃
800
60
950
100
1200
EN
Output Noise Voltage
SVR
75
㏈
Supply Voltage Rejection
1
1.1
1.15
1.2
V
V
VD
IO = 500㎃
1.05
1.1
Dropout Voltage
IO = 800㎃
V
TA = 25℃ 30㎳ Pulse
0.003
%/W
Thermal Regulation
LM1117 (ADJUSTABLE) ELECTRICAL CHARACTERISTICS
Figure 1.
Figure 2.
VIN
VIN
VOUT
IN
IN
OUT
LM1117
LM1117
OUT
C1
C1
C2
VREF
ADJ
IADJ
ADJ
R1
R1
50㎂
LOAD
R2
VOUT=VREF(1+R2/R1)+IADJR2
1A Current Output
Typical Adjustable Regulator
HTC
6
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
Figure 3. Negative Supply
LM1117S,T-50
VIN
IN
OUT
+
+
GND
100㎌
10㎌
VOUT=-5V
FLOATING INPUT
Figure 4. Active Terminator for SCSI-2 BUS
110
110
110
18-27
LINES
LM1117S,T-28
IN
(2.85V)
GND
+
+
22㎌
110
4.75V
TO
10㎌
5.25V
HTC
7
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
Figure 5. Voltage Regulator With Reference
LM1117S,T-50
VIN>11.5V
10V
100㎌
IN
OUT
+
+
GND
10㎌
5VOUT
Figure 6. Battery Backed-up Regulated Supply
LM1117S,T-50
5.2V LINE
5.0 BATTERY
VIN
IN
OUT
+
GND
10㎌
50Ω
SELECT FOR
CHARGE VALUE
LM1117S,T-50
IN
OUT
+
GND
+
10㎌
6.5V
100㎌
HTC
8
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