1A LOWDROP OUT VOLTAGE REGULATOR (ADJUSTABLE & FIXED) LM1117FEATURES
● Output Current up to 1 A
● Low Dropout Voltage ( 700mV at 1A Output Current )
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 3PIN FUNCTION1. Adj/Gnd2. Vout3. 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 3ORDERING INFORMATION
PIN FUNCTION 1. Adj/Gnd 2. Vout 3. VinDESCRIPTION
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 complywith SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for usein 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 andlower 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 of10㎌ 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
SYMBOLVIN
TSOLTSTGTOPR
MIN.
MAX.7260150125
UNITV℃℃℃
-650
HTC
1
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
THERMAL DATA
PARAMETER
Thermal Resistance Junction-Case
SYMBOLRTHJ-CASE
SOT-223
15
TO-263
3
UNIT℃
TYPICAL APPLICATION
VIN100㎌LM111710㎌ELECTRICAL CHARACTERISTICS FOR LM1117S/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
SYMBOLVREF
VREFΔVOΔVOΔVOΔVOVINIADJΔIADJIO(MIN)IO
EN
TEST CONDITION
VIN - VO = 2V, IO = 100㎃, TJ = 25℃IO = 10 to 1A, VIN - VO = 1.4 to 10VVIN - VO = 1.5 to 13.75V, IO = 10㎃VIN - VO = 3V, IO = 10mA to 1A1000 hrs, TJ = 125℃VIN ≤ 15V, ILoad =10㎃
VIN - VO = 1.4 to 10V, IO = 10mA to 1AVIN = 15V
VIN - VO = 5V, TJ=25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN - VO = 3V, VNIPPLE = 1VPPIO = 100㎃ , VIN=VOUT+ 0.8VIO = 500㎃ , VIN=VOUT+ 0.8VIO = 1A , VIN=VOUT+ 0.8VTA = 25℃ 30㎳ Pulse
MIN.1.2381.230
TYP.1.250.0350.10.50.3
MAX.1.2621.2700.20.4
UNITVV%%%%
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
5011.7
800
9500.003
60
7511.001.0
0.003
120551200
V㎂㎂㎃㎃%㏈
SVR
1.11.151.3
VVV%/W
Dropout Voltage Thermal Regulation
VD
HTC
2
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 4.5V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 3.9 to 10VVIN = 3.9 to 10V, IO = 0㎃VIN = 3.9V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 10V
VIN = 7.5V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 5.5V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.1.4851.475
TYP.1.50.040.080.50.35
MAX.1.5151.5250.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7101200
V㎃㎃㎶㏈
800950100
SVR607511.051.10.003
1.11.151.2
VVV%/W
Dropout Voltage Thermal Regulation
VD
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 4.5V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 3.9 to 10VVIN = 3.9 to 10V, IO = 0㎃VIN = 3.9V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 10V
VIN = 7.5V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 5.5V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.1.7821.772
TYP.1.80.040.080.50.3
MAX.1.8181.8280.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7
5
800
950100
60
7511.051.10.003
1.11.151.2101200
V㎃㎃㎶㏈VVV%/W
SVR
Dropout Voltage Thermal Regulation
VD
HTC
3
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 4.5V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 3.9 to 10VVIN = 3.9 to 10V, IO = 0㎃VIN = 3.9V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 10V
VIN = 7.5V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 5.5V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.2.4752.46
TYP.2.50.040.080.50.35
MAX.2.5252.540.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7101200
V㎃㎃㎶㏈
800950100
SVR607511.051.10.01
1.11.151.20.1
VVV%/W
Dropout Voltage Thermal Regulation
VD
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 4.85V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 4.25 to 10VVIN = 4.25 to 10V, IO = 0㎃VIN = 4.25V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 10V
VIN = 7.85V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 5.85V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.2.8212.805
TYP.2.850.0040.080.50.3
MAX.2.8792.8950.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7
5
800
950100
60
7511.051.10.003
1.11.151.2101200
V㎃㎃㎶㏈VVV%/W
SVR
Dropout Voltage Thermal Regulation
VD
HTC
4
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 5V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 4.5 to 10VVIN = 4.5 to 12V, IO = 0㎃VIN = 4.5V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 12V
VIN = 8V, TJ = 25℃
B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 6V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.2.972.95
TYP.30.040.080.50.3
MAX.3.033.050.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7
5
800
950100
60
7511.051.10.003
1.11.151.20.1101200
V㎃㎃㎶㏈VVV%/W
SVR
Dropout Voltage Thermal Regulation
VD
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 5.3V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 4.75 to 10VVIN = 4.75 to 15V, IO = 0㎃VIN = 4.75V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 15V
VIN = 8.3V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 6.3V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.3.2673.247
TYP.3.30.040.080.50.35
MAX.3.3333.3530.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7101200
V㎃㎃㎶㏈
800950100
SVR607511.051.10.003
1.11.151.2
VVV%/W
Dropout Voltage Thermal Regulation
VD
5
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
ELECTRICAL CHARACTERISTICS FOR LM1117S/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
SYMBOLVO
VOΔVOΔVOΔVOΔVOVINIDIO
EN
TEST CONDITION
VIN = 7V, IO = 10㎃, TJ = 25℃IO = 0 to 1A, VIN = 6.5 to 15VVIN = 6.5 to 15V, IO = 0㎃VIN = 6.5V, IO = 0 to 1A1000 hrs, TJ = 125℃IO = 100㎃VIN ≤ 15V
VIN = 8.3V, TJ = 25℃B = 10㎐ to 10㎑, TJ = 25℃IO = 40㎃ , f = 120㎐, TJ = 25℃VIN = 6.3V, VNIPPLE = 1VPPIO = 100㎃IO = 500㎃IO = 800㎃
TA = 25℃ 30㎳ Pulse
MIN.4.954.92
TYP.50.040.080.50.35
MAX.5.055.080.20.4
UNITVV㎷㎷%%
Temperature Stability Long Term Stability
Operating Input Voltage Quiescent Current Output Current
Output Noise Voltage Supply Voltage Rejection
7101200
V㎃㎃㎶㏈
800950100
SVR607511.051.10.003
1.11.151.2
VVV%/W
Dropout Voltage Thermal Regulation
VD
LM1117 (ADJUSTABLE) ELECTRICAL CHARACTERISTICS
Figure 1.Figure 2.VINC1INLM1117ADJVINOUTINLM1117ADJIADJ50㎂OUTVOUTC2C1R1VREFR1LOADVOUT=VREF(1+R2/R1)+IADJR2R21A Current OutputTypical Adjustable RegulatorHTC6
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
Figure 3. Negative SupplyVIN+LM1117S,T-50IN OUTGND10㎌+100㎌VOUT=-5VFLOATING INPUTFigure 4. Active Terminator for SCSI-2 BUS110110+4.75VTO5.25VLM1117S,T-28IN (2.85V)GND10㎌110+22㎌11018-27LINESHTC7
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1A LOWDROP OUT VOLTAGE REGULATOR (FIXED & ADJUSTABLE) LM1117
Figure 5. Voltage Regulator With ReferenceVIN>11.5V10㎌+LM1117S,T-50IN OUTGND5VOUT10V+100㎌Figure 6. Battery Backed-up Regulated SupplyVIN10㎌+LM1117S,T-50IN OUTGND50Ω5.2V LINE5.0 BATTERYSELECT FORCHARGE VALUE+6.5V10㎌LM1117S,T-50IN OUTGND+100㎌HTC
8
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