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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 VIN TSOL TSTG TOPR MIN. MAX. 7 260 150 125 UNIT V
-65 0
HTC
1
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
THERMAL DATA
PARAMETER Thermal Resistance Junction-Case SYMBOL RTHJ-CASE SOT-223 15 TO-263 3 UNIT
TYPICAL APPLICATION
VIN 100
LM1117
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 Reference Voltage Line Regulation Load Regulation SYMBOL VREF VREF VO VO VO VO VIN IADJ IADJ IO(MIN) IO
EN
TEST CONDITION VIN - VO = 2V, I O = 100, T J = 25 IO = 10 to 1A, V IN - VO = 1.4 to 10V VIN - VO = 1.5 to 13.75V, I O = 10 VIN - VO = 3V, I O = 10mA to 1A 1000 hrs, T J = 125 VIN 15V, ILoad =10 VIN - VO = 1.4 to 10V, I O = 10mA to 1A VIN = 15V VIN - VO = 5V, T J=25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN - V O = 3V, V NIPPLE = 1V PP IO = 100 , VIN=VOUT+ 0.8V IO = 500 , VIN=VOUT+ 0.8V IO = 1A , VIN=VOUT+ 0.8V TA = 25 30 Pulse
MIN. 1.238 1.230
TYP. 1.25 0.035 0.1 0.5 0.3
MAX. 1.262 1.270 0.2 0.4
UNIT V V % % % %
Temperature Stability Long Term Stability Operating Input Voltage Adjustment Pin Current Adjustment Pin Current Change Minimum Load Current Output Current Output Noise (%VO) Supply Voltage Rejection
7 50 1 1.7 800 950 0.003 60 75 1 1.00 1.0
0.003
120 5 5 1200
V %
SVR
1.1 1.15 1.3
V V V %/W
Dropout Voltage Thermal Regulation
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 4.5V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 3.9 to 10V VIN = 3.9 to 10V, I O = 0 VIN = 3.9V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 10V VIN = 7.5V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 5.5V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 4.5V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 3.9 to 10V VIN = 3.9 to 10V, I O = 0 VIN = 3.9V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 10V VIN = 7.5V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 5.5V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 4.5V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 3.9 to 10V VIN = 3.9 to 10V, I O = 0 VIN = 3.9V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 10V VIN = 7.5V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 5.5V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 4.85V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 4.25 to 10V VIN = 4.25 to 10V, I O = 0 VIN = 4.25V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 10V VIN = 7.85V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 5.85V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 5V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 4.5 to 10V VIN = 4.5 to 12V, I O = 0 VIN = 4.5V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 12V VIN = 8V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 6V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 5.3V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 4.75 to 10V VIN = 4.75 to 15V, I O = 0 VIN = 4.75V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 15V VIN = 8.3V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 6.3V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 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
VD
5
HTC
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 Output Voltage Line Regulation Load Regulation SYMBOL VO VO VO VO VO VO VIN ID IO
EN
TEST CONDITION VIN = 7V, I O = 10, T J = 25 IO = 0 to 1A, V IN = 6.5 to 15V VIN = 6.5 to 15V, I O = 0 VIN = 6.5V, I O = 0 to 1A 1000 hrs, T J = 125 IO = 100 VIN 15V VIN = 8.3V, T J = 25 B = 10 to 10, T J = 25 IO = 40 , f = 120, T J = 25 VIN = 6.3V, V NIPPLE = 1V PP IO = 100 IO = 500 IO = 800 TA = 25 30 Pulse
MIN. 4.95 4.92
TYP. 5 0.04 0.08 0.5 0.3 5
MAX. 5.05 5.08 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
VD
LM1117 (ADJUSTABLE) ELECTRICAL CHARACTERISTICS
Figure 1.
Figure 2.
VIN C1
IN
LM1117
ADJ
VIN
OUT
IN
LM1117
ADJ IADJ 50
OUT
VOUT C2
C1 R1 VREF R1
LOAD
VOUT=VREF(1+R2/R1)+IADJR2
R2
1A Current Output
Typical Adjustable Regulator
HTC
6
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
Figure 3. Negative Supply
VIN +
LM1117S,T-50 IN OUT GND
10
+
100
VOUT=-5V
FLOATING INPUT
Figure 4. Active Terminator for SCSI-2 BUS
110 110
+
4.75V TO 5.25V
LM1117S,T-28 IN (2.85V) GND
10
110 + 22 110
18-27 LINES
HTC
7
1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE)
LM1117
Figure 5. Voltage Regulator With Reference
VIN>11.5V 10
+
LM1117S,T-50 IN OUT GND
5VOUT
10V + 100
Figure 6. Battery Backed-up Regulated Supply
VIN 10
+
LM1117S,T-50 IN OUT GND
50
5.2V LINE 5.0 BATTERY
SELECT FOR CHARGE VALUE
+ 6.5V 10
LM1117S,T-50 IN OUT GND
+ 100
HTC
8

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