SGS Thomson Microelectronics LD1117V50C, LD1117DT50C, LD1117DT50, LD1117DT33C, LD1117S33C Datasheet
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LD1117
SERIES
LOW DROP FIXED AND ADJUSTABLE
POSITIVE VOLTAGE REGULATORS
April 1998
BLOCK DIAGRAM
TO-252 (DPAK) TO-220
SO-8SOT-223
■ LOWDROPOUT VOLTAGE(1VTYP)
■ 2.85VDEVICE PERFORMANCES ARE
SUITABLE FORSCSI-2 ACTIVE
TERMINATION
■ OUTPUT CURRENT UP TO800mA
■ FIXED OUTPUT VOLTAGE OF: 2.5V, 2.85V,
3.0V,3.3V,5.0V
■ ADJUSTABLEVERSIONAVAILABILITY
(V
ref
=1.25V)
■ INTERNALCURRENT AND THERMAL LIMIT
■ AVAILABLEIN± 1% (AT 25
o
C) AND2% IN
ALLTEMPERATURE RANGE
■ SUPPLYVOLTAGEREJECTION : 75 dB (TYP)
■ TEMPERATURE RANGE: 0
o
C TO125oC
DESCRIPTION
The LD1117 is a LOW DROP Voltage Regulator
able to provide up to 800mA of Output Current,
available even in adjustable version
(V
ref
=1.25V). Concerning fixed versions, are
offered the following Output Voltages: 2.5V,
2.85V, 3.0V 3.3V and 5.0V. The 2.85V type is
ideal for SCSI-2 lines active termination. The
device is supplied in: SOT-223, DPAK, SO-8
and TO-220. The SOT-223 and DPAK surface
mount packages optimize the thermal
characteristics even offering a relevant space
saving effect. High efficency is assured by NPN
pass transistor. In fact in this case, unlike than
PNP one, the Quiescent Current flows mostly
into the load. Only a very common 10µF
minimum capacitor is needed for stability. On
chip trimming allows the regulator to reach a
very tight output voltage tolerance, within ± 1%
at 25
o
C. The ADJUSTABLE LD1117 is pin to
pin compatible with the other standard
Adjustable voltage regulators maintaining the
better performances in terms of Drop and
Tolerance.
1/17
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
IN
DC InputVoltage 15 V
P
tot
PowerDissipation 12 W
T
stg
Storage TemperatureRange -40 to 150
o
C
T
op
OperatingJunction Temperature Range 0 to 125
o
C
Absolute Maximum Ratings are those value beyond which damage to the device may occur. Functional operation under these condition is
not implied. Over the above suggested Max Power Dissipation a Short Circuit could definetively damage the device.
THERMAL DATA
Symbol Parameter SOT-223 SO-8 DPAK TO-220 Unit
R
thj-case
R
thj-amb
Thermal ResistanceJunction-case
Thermal ResistanceJunction-ambient
15 20 8 3
50
o
C/W
o
C/W
APPLICATION CIRCUIT
LD1117 SERIES
2/17
CONNECTION DIAGRAM AND ORDERINGNUMBERS (top view)
SOT-223 SO-8 DPAK TO-220 Output Voltage
LD1117S25
LD1117S25C
LD1117S28
LD1117S30
LD1117S30C
LD1117S33
LD1117S33C
LD1117S50
LD1117S50C
LD1117D25
LD1117D25C
LD1117D28
LD1117D30
LD1117D30C
LD1117D33
LD1117D33C
LD1117D50
LD1117D50C
LD1117DT25
LD1117DT25C
LD1117DT28
LD1117DT30
LD1117DT30C
LD1117DT33
LD1117DT33C
LD1117DT50
LD1117DT50C
LD1117V25
LD1117V25C
LD1117V28
LD1117V30
LD1117V30C
LD1117V33
LD1117V33C
LD1117V50
LD1117V50C
2.5V
2.5V
2.85V
3V
3V
3.3V
3.3V
5V
5V
LD1117S LD1117D LD1117DT LD1117V ADJUSTABLE
FROM 1.25 TO 15V
DPAK TO-220
SOT-223 SO-8
LD1117 SERIES
3/17
ELECTRICAL CHARACTERISTICS FOR LD1117#25 (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Vin=4.5 V Io=10 mA Tj=25oC 2.475 2.5 2.525 V
V
o
OutputVoltage Io= 0 to 800 mA Vin=3.9 to 10 V 2.45 2.55 V
∆V
o
LineRegulation Vin=3.9 to 10 V Io=0mA 1 6 mV
∆V
o
LoadRegulation Vin=3.9 V Io=0 to 800 mA 1 10 mV
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage Io= 100 mA 15 V
I
d
Quiescent Current Vin≤ 10 V 5 10 mA
I
o
OutputCurrent Vin=7.5 V Tj=25oC 800 950 1200 mA
eN OutputNoise Voltage B = 10Hz to 10KHz T
j
=25oC 100 µV
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in
=5.5 V V
ripple
= 1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.10
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
ELECTRICAL CHARACTERISTICS FOR LD1117#28 (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Vin=4.85 V Io=10mA Tj=25oC 2.82 2.85 2.88 V
V
o
OutputVoltage Io= 0 to 800 mA Vin=4.25 to10 V 2.79 2.91 V
∆V
o
LineRegulation Vin=4.25 to 10 V Io=0 mA 1 6 mV
∆V
o
LoadRegulation Vin=4.25 V Io=0to800mA 1 10 mV
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage Io= 100 mA 15 V
I
d
Quiescent Current Vin≤ 10 V 5 10 mA
I
o
OutputCurrent Vin=7.85 V Tj=25oC 800 950 1200 mA
eN OutputNoise Voltage B = 10Hz to 10KHz T
j
=25oC 100 µV
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in
=5.85 V V
ripple
=1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.1
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
LD1117 SERIES
4/17
ELECTRICAL CHARACTERISTICS FOR LD1117#30 (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Vin=5V Io=10mA Tj=25oC 2.97 3 3.03 V
V
o
OutputVoltage Io= 0 to 800 mA Vin=4.5 to 10 V 2.94 3.06 V
∆V
o
LineRegulation Vin=4.5 to 12 V Io=0mA 1 6 mV
∆V
o
LoadRegulation Vin=4.5 V Io=0 to 800 mA 1 10 mV
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage Io= 100 mA 15 V
I
d
Quiescent Current Vin≤ 12 V 5 10 mA
I
o
OutputCurrent Vin=8V Tj=25oC 800 950 1200 mA
eN OutputNoise Voltage B = 10Hz to 10KHz T
j
=25oC 100 µV
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in
=6V V
ripple
=1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.1
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
ELECTRICAL CHARACTERISTICS FOR LD1117#33 (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Vin=5.3 V Io=10 mA Tj=25oC 3. 267 3.3 3. 333 V
V
o
OutputVoltage Io= 0 to 800 mA Vin=4.75 to10 V 3.235 3.365 V
∆V
o
LineRegulation Vin=4.75 to 15 V Io=0 mA 1 6 mV
∆V
o
LoadRegulation Vin=4.75 V Io=0to800mA 1 10 mV
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage Io= 100 mA 15 V
I
d
Quiescent Current Vin≤ 15 V 5 10 mA
I
o
OutputCurrent Vin=8.3 V Tj=25oC 800 950 1200 mA
eN OutputNoise Voltage B = 10Hz to 10KHz T
j
=25oC 100 µV
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in
=6.3 V V
ripple
= 1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.1
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
LD1117 SERIES
5/17
ELECTRICAL CHARACTERISTICS FOR LD1117#50 (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
OutputVoltage Vin=7V Io=10mA Tj=25oC 4.95 5 5.05 V
V
o
OutputVoltage Io= 0 to 800 mA Vin=6.5 to 15 V 4.9 5.1 V
∆V
o
LineRegulation Vin=6.5 to 15 V Io= 0 mA 1 10 mV
∆V
o
LoadRegulation Vin=6.5 V Io=0 to 800 mA 1 15 mV
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage Io= 100 mA 15 V
I
d
Quiescent Current Vin≤ 15 V 5 10 mA
I
o
OutputCurrent Vin=10 V Tj=25oC 800 950 1200 mA
eN OutputNoise Voltage B = 10Hz to 10KHz T
j
=25oC 100 µV
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in
=8V V
ripple
=1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.1
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
ELECTRICAL CHARACTERISTICS FOR LD1117(ADJUSTABLE) (refer to the test circuits,
T
j
=0 to 125oC, Co=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
ref
Reference Voltage Vin-Vo=2V Io=10 mA
T
j
=25oC
1.238 1.2 5 1.262 V
V
ref
Reference Voltage Io= 10 to 800 mA
V
in-Vo
=1.4to 10 V
1.225 1. 275 V
∆V
o
LineRegulation Vin-Vo=1.5to 13.75 V Io=10mA 0 .035 0.2 %
∆V
o
LoadRegulation Vin-Vo=3V Io= 10 to 800 mA 0.1 0.4 %
∆V
o
Temperature Stability 0.5 %
∆V
o
LongTermStability 1000hrs Tj=125oC0.3%
V
in
Operating InputVoltage 15 V
I
adj
AdjustmentPin Current Vin≤ 15V 60 120 µA
∆I
adj
AdjustmentPin Current
Change
Vin-Vo=1.4to 10 V
I
o
= 10 to 800 mA
15µA
I
o(min)
Minimum Load Current Vin=15 V 2 5 mA
I
o
OutputCurrent Vin-Vo=5V Tj=25oC 800 950 1200 mA
eN OutputNoise (%V
O
) B = 10Hz to 10KHz Tj=25oC 0 . 003 %
SVR Supply Voltage Rejection I
o
= 40 mA f= 120 Hz Tj=25oC
V
in-Vo
=3V V
ripple
= 1 Vpp
60 75 dB
V
d
Dropout Voltage Io= 100 mA
I
o
= 500 mA
I
o
= 800 mA
1
1.05
1.1
1.1
1.15
1.2
V
V
V
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.1 %/W
LD1117 SERIES
6/17
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