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LD1086CV
Datasheet
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SGS Thomson Microelectronics LD1086CV Datasheet

LD1086
SERIES
1.5A LOW DROP FIXED AND ADJUSTABLE POSITIVE VOLTAGE REGULATORS
May 2000
BLOCKDIAGRAM
■ THREETERMINALADJUSTABLEOR FIXED
OUTPUTVOLATGE1.8V,2.5V,2.85V,3.3V,
3.6V,5V,8V, 9V, 12V
■ GUARANTEEDOUTPUTCURRENTUP TO
1.5A
■ OUTPUT TOLERANCE±1% AT 25
o
C AND
±2% IN FULLTEMPERATURERANGE
■
INTERNALPOWERAND THERMALLIMIT
■ WIDEOPERATINGTEMPERATURERANGE
-40
o
C TO 125oC
■
PACKAGEAVAILABLE:TO-220,D2PAK, D
2
PAK/A,DPAK,
■ PINOUTCOMPATIBILITYWITH STANDARD
ADJUSTABLEVOLTAGEREGULATORS
DESCRIPTION
The LD1086 is a LOW DROP Voltage Regulator able to provide up to 1.5A of Output Current. Dropout is guaranteed at a maximum of 1.5V at the maximum output current, decreasing at lower loads. The LD1086 is a pin compatible with older 3-terminal adjustable regulators, but has better performances in term of drop and output tolerance. A 2.85V output version is suitable for SCSI-2 active termination. Unlike PNP regulators, where a part of the output
current is wasted as quiescent current, the LD1086 quiescent current flow into the load, so increase efficency. Only a 10 µF minimum capacitor is needed for stability. The device is supplied in TO-220, D
2
PAK, D2PAK/A and DPAK packages. On chip trimming allows the regulator to reach a very tight output voltage tolerance, within±1% at 25
o
C.
TO-220
D
2
PAK/A
DPAK(TO-252)
D
2
PAK
1/17
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
IN
DC InputVoltage 30 V
I
OUT
OutputCurrent Internally Limited mA
P
tot
PowerDissipation Internally Limited mW
T
stg
Storage TemperatureRange -50 to 150
o
C
T
op
OperatingJunctionTemperature Range -40 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 ShortCircuit could definetively damage the device.
THERMALDATA
Symbol Parameter TO-220 D2PAK DPAK Unit
R
thj-cas e
R
thj-amb
Thermal ResistanceJunction-case Thermal ResistanceJunction-ambient
3
50
3
62.5
8
o
C/W
o
C/W
TO-220 D
2
PAK (**) D2PAK/A (**) DPAK (**) Output Voltage
LD1086V18 LD1086V25 LD1086V28 LD1086V33 LD1086V36 LD1086V50 LD1086V80 LD1086V90 LD1086V120
LD1086D2T18 LD1086D2T25 LD1086D2T28 LD1086D2T33 LD1086D2T36 LD1086D2T50 LD1086D2T80 LD1086D2T90 LD1086D2T120
LD1086D2M18 LD1086D2M25 LD1086D2M28 LD1086D2M33 LD1086D2M36 LD1086D2M50 LD1086D2M80 LD1086D2M90 LD1086D2M120
LD1086DT18 LD1086DT25 LD1086DT28 LD1086DT33 LD1086DT36 LD1086DT50 LD1086DT80 LD1086DT90 LD1086DT120
1.8V
2.5V
2.85V
3.3V
3.6V 5V 8V 9V
12V
LD1086V LD1086D2T LD1086D2M LD1086DT 1.25 to 28V
(**)Available in Tape & Reel with the suffix ”TR”.
APPLICATION CIRCUIT FOR FIXED AND ADJUSTABLE VERSION
CONNECTION DIAGRAM AND ORDERING NUMBERS
(top view)
VO=
V
REF
(1+
R
2
R
1
)
TO-220
D
2
PAK
D
2
PAK/ADPAK
LD1086 SERIES
2/17
ELECTRICAL CHARACTERISTICS FOR LD1086#18
(refer to the test circuits,
T
j
= -40 to 125oC, VIN= 4.8 V, CIN=CO=10µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC 1.782 1.8 1.818 V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=3.4to 30 V 1.764 1.8 1.836 V
∆
V
O
LineRegulation VIN=3.4to 18V IO= 0 mA Tj=25oC0.24mV
∆
V
O
LineRegulation VIN=3.4to 18V IO=0mA 0.4 4 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC0.58mV
∆
V
O
LoadRegulation IO= 0 to1.5A 1 16 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
=1.5A f= 120Hz CO=25µF
V
IN
=6.8±3V
60 82 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS FOR LD1086#25
(refer to the test circuits,
T
j
= -40 to 125oC, VIN= 5.5 V, CIN=CO=10µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC 2.475 2.5 2.525 V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=4.1to 30 V 2.45 2.5 2.55 V
∆
V
O
LineRegulation VIN=4.1to 18V IO= 0 mA Tj=25oC0.25mV
∆
V
O
LineRegulation VIN=4.1to 18V IO=0mA 0.4 5 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC0.510mV
∆
V
O
LoadRegulation IO= 0 to1.5A 1 18 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=7.5±3V
60 81 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
LD1086 SERIES
3/17
ELECTRICAL CHARACTERISTICS FOR LD1086#285
(referto the testcircuits,
T
j
= -40 to 125oC, VIN= 5.85 V, CIN=CO=10µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC 2.821 2.85 2.879 V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=4.5to 30 V 2.793 2.85 2.907 V
∆
V
O
LineRegulation VIN=4.5to 18V IO= 0 mA Tj=25oC0.26mV
∆
V
O
LineRegulation VIN=4.5to 18V IO=0mA 0.5 6 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC112mV
∆
V
O
LoadRegulation IO= 0 to1.5A 2 20 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=7.85±3V
60 80 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS FOR LD1086#33
(refer to the test circuits,
T
j
= -40 to 125oC, VIN= 6.3 V, CIN=CO=10µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC 3.267 3.3 3.333 V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=4.9to 30 V 3.234 3.3 3.366 V
∆
V
O
LineRegulation VIN=4.9to 18V IO= 0 mA Tj=25oC0.510mV
∆
V
O
LineRegulation VIN=4.9to 18V IO= 0 mA 1 10 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC315mV
∆
V
O
LoadRegulation IO= 0 to1.5A 7 25 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=8.3±3V
60 79 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
LD1086 SERIES
4/17
ELECTRICAL CHARACTERISTICS FOR LD1086#36
(refer to the test circuits,
T
j
= -40 to 125oC, VIN= 6.6 V, CIN=CO=10µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC 3.564 3.6 3.636 V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=5.2to 30 V 3.528 3.6 3.672 V
∆
V
O
LineRegulation VIN=5.2to 18V IO= 0 mA Tj=25oC0.510mV
∆
V
O
LineRegulation VIN=5.2to 18V IO= 0 mA 1 10 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC315mV
∆
V
O
LoadRegulation IO= 0 to1.5A 7 25 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=8.6±3V
60 78 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS FOR LD1086#50
(refer to the test circuits,
T
j
= -40 to 125oC, VIN= 8 V, CIN=CO=10µF unless otherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC4.9555.05V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=6.6to 30 V 4.9 5 5.1 V
∆
V
O
LineRegulation VIN=6.6to 20V IO= 0 mA Tj=25oC0.510mV
∆
V
O
LineRegulation VIN=6.6to 20V IO= 0 mA 1 10 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC520mV
∆
V
O
LoadRegulation IO= 0 to1.5A 10 35 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=10±3V
60 75 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
LD1086 SERIES
5/17
ELECTRICAL CHARACTERISTICS FOR LD1086#80
(refer to the test circuits,
T
j
= -40 to 125oC, VIN=11V,CIN=CO=10µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC7.9288.08V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=9.8to 30 V 7.84 8 8.16 V
∆
V
O
LineRegulation VIN=9.8to 20V IO= 0 mA Tj=25oC118mV
∆
V
O
LineRegulation VIN=9.8to 20V IO= 0 mA 2 18 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC830mV
∆
V
O
LoadRegulation IO= 0 to1.5A 12 60 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=13±3V
54 71 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
ELECTRICAL CHARACTERISTICS FOR LD1086#90
(refer to the test circuits,
T
j
= -40 to 125oC, VIN=12V,CIN=CO=10µF unlessotherwisespecified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
O
OutputVoltage IO= 0 mA Tj=25oC8.9199.09V
V
O
OutputVoltage(Note 1) IO= 0 to1.5A VIN=11to30V 8.82 9 9.18 V
∆
V
O
LineRegulation VIN=11to20V IO=0 mA Tj=25oC120mV
∆
V
O
LineRegulation VIN=11to20V IO=0 mA 2 20 mV
∆
V
O
LoadRegulation IO= 0 to1.5A Tj=25oC830mV
∆
V
O
LoadRegulation IO= 0 to1.5A 12 60 mV
V
d
Dropout Voltage IO= 1.5 A 1.3 1.5 V
I
d
QuiescentCurrent VIN≤ 30 V 5 10 mA
I
SC
ShortCircuitCurrent VIN-VO=5V
V
IN-VO
=25V
1.5
0.05
2
0.2
A
Thermal Regulation T
a
=25oC 30msPulse 0.01 0.04 %/W
SVR Supply VoltageRejection I
O
= 1.5 A f= 120Hz CO=25µF
V
IN
=14±3V
54 70 dB
eN OutputNoise Voltage B= 10Hzto 10KHz T
a
=25oC 0.003 % S Temperature Stability 0.5 % S LongTermStability 1000hrs T
a
= 125oC0.5%
Note1: See short-circuit curve for available output current at fixed dropout.
LD1086 SERIES
6/17
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