DROPOUT VOLTAGE (1.15V IOUT=1.2A, VERY QUIESCENT CURRENT (5mA TYPE OUT
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LD1117A/B SERIES
DROPOUT VOLTAGE (1.15V IOUT=1.2A, VERY QUIESCENT CURRENT (5mA TYPE OUTPUT CURRENT 1000mA TYPE OUTPUT CURRENT 1200mA FIXED OUTPUT VOLTAGE 1.8V, 2.5V, 2.85V, 3.3V, 5.0V ADJUSTABLE VERSION AVAILABILITY (Vref=1.25V) INTERNAL CURRENT THERMAL LIMIT ONLY STABILITY AVAILABLE 25oC) FULL TEMPERATURE RANGE HIGH SUPPLY VOLTAGE REJECTION (80dB TYP) TEMPERATURE RANGE 125oC
SOT-223
TO-252 (DPAK)
DESCRIPTION LD1117A LD1117B DROP Voltage Regulator able provide respectively 1000mA 1200mA Output Current, available even adjustable version (Vref=1.25V). Concerning fixed versions, offered following Output Voltages: 1.8V, 2.5V, 2.85V, 3.3V 5.0V. 2.85V type ideal SCSI-2 lines active termination. device supplied SOT-223, DPAK. BLOCK DIAGRAM
SOT-223 DPAK surface mount packages optimize thermal characteristics even offering relevant space saving effect. High efficency assured pass transistor. fact this case, unlike than one, Quiescent Current flows mostly into load. Only very common 10µF minimum capacitor needed stability. ADJUSTABLE LD1117 compatible with other standard Adjustable voltage regulators maintaining better performances terms Drop Tolerance.
June 2000
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LD1117A/B SERIES
ABSOLUTE MAXIMUM RATINGS
Symbol Input Voltage Power Dissipation Storage Temperature Range Operating Junction Temperature Range Parameter Value Unit
Absolute Maximum Ratings those value beyond which damage device occur. Functional operation under these condition implied. Over above suggested Power Dissipation Short Circuit could definetively damage device.
THERMAL DATA
Symbol Parameter SOT-223 DPAK Unit
thj- Thermal Resistance Junction-case
APPLICATION CIRCUIT
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LD1117A/B SERIES
CONNECTION DIAGRAM ORDERING NUMBERS (top view)
SOT-223
DPAK
SOT-223 LD1117AS18TR LD1117BS18TR LD1117AS25TR LD1117BS25TR LD1117AS28TR LD1117BS28TR LD1117AS33TR LD1117BS33TR LD1117AS50TR LD1117BS50TR LD1117AST-R LD1117BST-R
DPAK LD1117ADT18TR LD1117BDT18TR LD1117ADT25TR LD1117BDT25TR LD1117ADT28TR LD1117BDT28TR LD1117ADT33TR LD1117BDT33TR LD1117ADT50TR LD1117BDT50TR LD1117ADT-R LD1117BDT-R
Output Voltage 1.8V 1.8V 2.5V 2.5V 2.85V 2.85V 3.3V 3.3V ADJUSTABLE FROM 1.25
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117A#18 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1000 1000 Vripple 1000 30ms Pulse
Min. 1.764 1.728
Typ.
Max. 1.836 1.872
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117B#18 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1200 1200 Vripple 1200 30ms Pulse
Min. 1.764 1.728
Typ.
Max. 1.836 1.872
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117A#25 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1000 1000 Vripple 1000 30ms Pulse
Min. 2.45
Typ.
Max. 2.55
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117B#25 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1200 1200 Vripple 1200 30ms Pulse
Min. 2.45
Typ.
Max. 2.55
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117A#28 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage 4.85 Test Conditions 1000 4.25 4.25 4.25 1000 Vripple 1000 30ms Pulse
Min. 2.793 2.736
Typ. 2.85
Max. 2.907 2.964
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117B#28 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage 4.85 Test Conditions 1200 4.25 4.25 4.25 1200 Vripple 1200 30ms Pulse
Min. 2.793 2.736
Typ. 2.85
Max. 2.907 2.964
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117A#33 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1000 4.75 4.75 4.75 1000 Vripple 1000 30ms Pulse
Min. 3.234 3.168
Typ.
Max. 3.366 3.432
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117B#33 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1200 4.75 4.75 4.75 1200 Vripple 1200 30ms Pulse
Min. 3.234 3.168
Typ.
Max. 3.366 3.432
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117A#50 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1000 1000 Vripple 1000 30ms Pulse
Min.
Typ.
Max.
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117B#50 (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1200 1200 Vripple 1200 30ms Pulse
Min.
Typ.
Max.
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
ELECTRICAL CHARACTERISTICS LD1117ADJ (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1000 2.75 2.75 2.75 1000 Vripple 1000 30ms Pulse
Min. 1.225
Typ. 1.25
Max. 1.275
Unit
1000
1200 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
ELECTRICAL CHARACTERISTICS LD1117BDJ (refer test circuits, unless otherwise specified)
Symbol Parameter Output Voltage Output Voltage Line Regulation Load Regulation Operating Input Voltage Quiescent Current Output Current Supply Voltage Rejection Dropout Voltage Test Conditions 1200 2.75 2.75 2.75 1200 Vripple 1200 30ms Pulse
Min. 1.225
Typ. 1.25
Max. 1.275
Unit
1200
1500 1.05 1.15 0.08 1.10 1.15 1.30
O(pwr) Thermal Regulation
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LD1117A/B SERIES
TYPICAL APPLICATIONS: FIGURE Negative Supply
FIGURE Active Terminator SCSI-2
FIGURE Circuit Increasing Output Voltage
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LD1117A/B SERIES
TYPICAL APPLICATIONS (continued): FIGURE Voltage Regulator With Reference
FIGURE Battery Backed-up Regulated Supply
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LD1117A/B SERIES
TYPICAL APPLICATIONS (continued): FIGURE Post-Regulated Dual Supply
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LD1117A/B SERIES
LD1117 ADJUSTABLE: APPLICATION NOTE LD1117 ADJUSTABLE thermal stabilized 1.25±0.012V reference voltage between pins. IADJ 60µA typ. (120µA max.) typ. (5µA max.). normally fixed 120. From figure obtain: VOUT VREF (IADJ IR1) VREF (IADJ VREF VREF IADJ. normal application value range Kohm, product could considered VOUT calculation; then above expression becomes: VOUT VREF R1). order have better load regulation important realize good Kelvin connection resistors. particular connection must realized very close pin, while ground connection must placed near possible negative Load pin. Ripple rejection improved introducing 10µF electrolitic capacitor placed parallel resistor (see Fig.8) FIGURE Adjustable Output Voltage Application Circuit
FIGURE Adjustable Output Voltage Application with improved Ripple Rejection
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LD1117A/B SERIES
SOT-223 MECHANICAL DATA
MIN. 0.67 2.27 4.57 0.63 TYP. 0.65 MAX. 2.33 4.63 0.67 0.32 0.73 114.2 26.4 263.8 137.8 118.1 27.6 275.6 137.8 255.9 MIN. 89.4 179.9 24.8 59.1 mils TYP. 90.6 181.1 15.7 25.6 MAX. 91.7 182.3 23.6 26.4 66.9 12.6 122.1 28.7 287.4 145.7 263.8
DIM.
P008B
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LD1117A/B SERIES
TO-252 (DPAK) MECHANICAL DATA
MIN. 0.03 0.64 0.45 0.48 9.35 0.023 TYP. MAX. 0.23 10.1 MIN. 0.086 0.035 0.001 0.025 0.204 0.017 0.019 0.236 0.252 0.173 0.368 0.031 0.039 inch TYP. MAX. 0.094 0.043 0.009 0.035 0.212 0.023 0.023 0.244 0.260 0.181 0.397
DIM.
DETAIL
DETAIL
0068772-B
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LD1117A/B SERIES
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