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Home ›  LL15 > LD1117ADT18TR-LD1117ADT25TR-LD1117ADT33TR-LD1117ADT-R-LD1117AS18TR-LD1117AS25TR-LD1117AS33TR-LD1117AS50TR-LD1117AST-R-LD1117AV-LD1117AV18-LD1117AV33-LD1117AV50,LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117ADT18TR-LD1117ADT25TR-LD1117ADT33TR-LD1117ADT-R-LD1117AS18TR Fast Delivery,Good Price
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LD1117ADT-R |LD1117ADTRN/a1283avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117ADT18TRSTMN/a10000avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117ADT25TRSTN/a2488avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117ADT33TRSTN/a5000avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AS18TRSTN/a41649avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AS25TRSTN/a3300avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AS33TRST,STN/a10000avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AS50TRSTN/a3000avaiLow drop fixed positive voltage regulator, 5V
LD1117AST-R |LD1117ASTRSTN/a1100avaiLow drop adjustable positive voltage regulator
LD1117AVSTN/a22000avaiLow drop adjustable positive voltage regulator
LD1117AV18STN/a424avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AV33STN/a123avaiLOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
LD1117AV50STN/a2500avaiLow drop fixed positive voltage regulator, 5V


LD1117AS18TR ,LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORSLD1117ASERIESLOW DROP FIXED AND ADJUSTABLEPOSITIVE VOLTAGE REGULATORS■ LOW DROPOUT VOLTAGE(1.15V TY ..
LD1117AS25TR ,LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORSABSOLUTE MAXIMUM RATINGSSymbol Parameter² Value UnitV DC Input Voltage10 VINP Power Dissipation12 W ..
LD1117AS33TR ,LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORSELECTRICAL CHARACTERISTICS OF LD1117A#25 (refer to the test circuits, T = 0 to 125°C,JC =10μF,C = 1 ..
LD1117AS50TR ,Low drop fixed positive voltage regulator, 5VABSOLUTE MAXIMUM RATINGSSymbol Parameter² Value UnitV DC Input Voltage10 VINP Power Dissipation12 W ..
LD1117ASTR ,LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORSElectrical Characteristics Of LD1117A#12 (refer to the test circuits, T = 0 to 125°C, C = 10 J OµF, ..
LD1117AST-R ,Low drop adjustable positive voltage regulatorAbsolute Maximum Ratings are those values beyond which damage to the device may occur. Functional o ..
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LH5497-50 , CMOS 1K X 9 FIFO
LH5498-50 , CMOS 2K X 9 FIFO
LH5498U-35 , CMOS 2K X 9 FIFO
LH75411N0Q100C0 ,System-on-Chip IMPORTANT NOTICE Dear customer, stAs from June 1 , 2007 NXP Semiconductors has acquired the ..


LD1117ADT18TR-LD1117ADT25TR-LD1117ADT33TR-LD1117ADT-R-LD1117AS18TR-LD1117AS25TR-LD1117AS33TR-LD1117AS50TR-LD1117AST-R-LD1117AV-LD1117AV18-LD1117AV33-LD1117AV50
LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
1/16January 2003 LOW DROPOUT VOLTAGE
(1.15V TYP.@ IOUT =1A, 25°C) VERY LOW QUIESCENT CURRENT mA TYP.@ 25°C) OUTPUT CURRENT UP TO 1A FIXED OUTPUT VOLTAGE OF: 1.8V, 2.5V,
2.85V, 3.3V, 5.0V ADJUSTABLE VERSION AVAILABILITYrel= 1.25V) INTERNAL CURRENT AND THERMAL LIMIT ONLY10μF FOR STABILITY AVAILABLEIN± 2% (AT 25°C) AND 4%IN
FULL TEMPERATURE RANGE HIGH SUPPLY VOLTAGE REJECTION:
(80dB TYP. AT 25°C) TEMPERATURE RANGE: 0°C TO 125°C
DESCRIPTION

The LD1117Aisa LOW DROP Voltage Regulator
able to provide up to 1A of Output Current,
available evenin adjustable version (Vref=1.25V).
Concerning fixed versions, are offered the
following Output Voltages: 1.8V, 2.5V, 2.85V,
3.3V and 5.0V. The 2.85V typeis idealfor SCSI-2
lines active termination. The deviceis suppliedin:
SOT-223, DPAK and TO-220. The surface mount
packages optimize the thermal characteristics
even offeringa relevant space saving effect. High
efficiencyis assuredby NPN pass transistor. Only very common 10μF minimum capacitor is
neededfor stability. Only chip trimming allows the
regulatorto reacha very tight output voltage
tolerance, within± 2%at25 °C.
LD1117A
SERIES

LOW DROP FIXED AND ADJUSTABLE
POSITIVE VOLTAGE REGULATORS
BLOCK DIAGRAM
LD1117A SERIES
2/16
ABSOLUTE MAXIMUM RATINGS

AbsoluteMaximum Ratingsare those values beyond which damagetothe device may occur. Functional operation under these conditionis
not implied. Overthe above suggested Max Power Dissipationa Short Circuit could definitively damagethe device.
THERMAL DATA
APPLICATION CIRCUIT
(FOR OTHER FIXED OUTPUT VOLTAGES)
LD1117A SERIES
3/16
CONNECTION DIAGRAM
(top view)
NOTE: The TABis connectedtothe VOUT.
ORDERING CODES
LD1117A SERIES
4/16
ELECTRICAL CHARACTERISTICS OF LD1117A#18
(referto the test circuits,TJ=0to 125°C, =10μF,CI=10 μF unless otherwise specified)
ELECTRICAL CHARACTERISTICS OF LD1117A#25
(referto the test circuits,TJ=0to 125°C,O =10μF,CI=10 μF unless otherwise specified)
LD1117A SERIES
5/16
ELECTRICAL CHARACTERISTICS OF LD1117A#28
(referto the test circuits,TJ=0to 125°C, =10μF,CI=10 μF unless otherwise specified)
ELECTRICAL CHARACTERISTICS OF LD1117A#33
(referto the test circuits,TJ=0to 125°C,O =10μF,CI=10 μF unless otherwise specified)
LD1117A SERIES
6/16
ELECTRICAL CHARACTERISTICS OF LD1117A#50
(referto the test circuits,TJ=0to 125°C, =10μF,CI=10 μF unless otherwise specified)
ELECTRICAL CHARACTERISTICS OF LD1117A (ADJUSTABLE)
(referto the test circuits,TJ =0to
125°C,CO =10μF,CI=10μF unless otherwise specified)
LD1117A SERIES
7/16
TYPICAL APPLICATIONS
Figure1:
Negative Supply
Figure2:
Active Terminator for SCSI-2 BUS
Figure3:
Circuit for Increasing Output Voltage
LD1117A SERIES
8/16
Figure4:
Voltage Regulator With Reference
Figure5:
Battery Backed-up Regulated Supply
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