ETC LT1084-T257

SEME
LT1084M
LAB
MILITARY VERSION
5 AMP POSITIVE
VOLTAGE REGULATOR
FEATURES
INPUT
SAFE AREA
PROTECT ION
CU RR EN T
LIMITING
AMPLIFIER
L IM I T
OU TPUT
SEN SE
T H E R M AL
O V ER L O AD
VOL T AGE
REGUL ATION
AMPLIFIER
VR E F
•
•
•
•
•
•
•
Low Dropout Performance
Fixed or Adjustable Voltages
Fixed Output Voltages of 3.3V, 5V & 12V
Adjustable Output Voltage Range From 1.2V
Line Regulation 0.015% / V Typical.
Load Regulation 0.01% Typical.
Available in Hermetically Sealed TO–3, SMD1 and
TO–257 (isolated & non-isolated) Packages.
• Military Temperature Range (–55 to +150°C)
ADJUST
DEVICE(1)
LT1084MK–XX
LT1084MG–XX
LT1084MIG–XX
LT1084MSM–XX
DESCRIPTION
PACKAGE
TO–3
TO–257
Isolated TO–257
SMD1
The LT1084 voltage regulators are monolithic
Note
integrated circuits designed for use in applications
1) –XX = Voltage Option: 3.3, 5 or 12
requiring a well regulated positive output voltage
–XX = Left blank for Adjustable Option.
with low input-output differential voltage.
Features include full power usage of up to 5A load current, internal current limiting and thermal shutdown. Safe area
protection on the die is also included, providing protection of the series pass Darlington transistor under most conditions.
The hermetically sealed TO–3 packages are utilised for high reliablitiy and low thermal resistance, whilst the SMD1
package is designed for surface mount applications.
ABSOLUTE MAXIMUM RATINGS (Tcase = 25°C unless otherwise stated)
VIN
Input – Output Voltage Differential
35V
PD
Power Dissipation
RqJC
Thermal Resistance Junction To Case
TO–3
TO–3
Control
Power
0.76°C / W
2.3°C / W
RqJC
Thermal Resistance Junction To Case
SMD1
SMD1
Control
Power
0.79°C / W
4.0°C / W
RqJC
Thermal Resistance Junction To Case
TO–257
TO–257
Control
Power
0.79°C / W
4.0°C / W
TJ
Operating Junction Temperature Range
Control
Power
–55 to 150°C
–55 to 200°C
TSTG
Storage Temperature Range
TLEAD
Lead Temperature (for 10 sec.)
Internally limited *
–65 to 150°C
300°C
* These ratings are only applicable for power dissipations of 30 Watts over a limited range of VIN – VOUT.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
Prelim. 7/00
SEME
LT1084M
LAB
MILITARY VERSION
ELECTRICAL CHARACTERISTICS
Output
Voltage Test Conditions
Parameter
3.3
VO
4
Output Voltage
5
12
VREF
4
REG(LINE)
Reference Voltage
4
(TJ = 25°C Unless otherwise stated)
ADJ.
Line Regulation
VIN – VOUT = 6.3V
IO = 10mA
IO = 10mA to 5A
TJ = Over Temp
VIN – VOUT = 8V
IO = 10mA
IO = 10mA to 5A
TJ = Over Temp
VIN – VOUT = 15V
IO = 10mA
IO = 10mA to 5A
TJ = Over Temp
VIN – VOUT = VO + 3V
IO = 10mA
IO = 10mA to 5A
TJ = Over Temp
VIN – VOUT = 1.5 to 15V
TJ = 25°C
IO = 10mA
TJ = Over Temp
VIN – VOUT = 1.5 to 35V
IO = 10mA
TJ = Over Temp
REG(LOAD)
4
Load Regulation
VD
Dropout Voltage
ICL
Current Limit
IQ
Quiescent Current
REG(THERM) Thermal Regulation
1,2
3
3
3
3
Min.
Typ.
Max.
3.267
3.3
3.333
3.234
3.3
3.366
4.95
5
5.05
4.90
5
5.10
11.88
12
12.12
11.76
12
12.24
1.238
1.25
1.262
1.225
1.25
1.270
0.015
0.2
3
0.035
3
Adjust Pin Current
DIPIN
Adjust Pin Current Change
TS
Temperature Stability
IO
Minimum Load Current
VN
RMS Output Noise
RA
Ripple Rejection Ratio
0.3
VIN – VOUT = 3V
TJ = Over Temp
3
0.2
0.4
DVOUT , DVREF = 1%
TJ = Over Temp
3
1.3
1.5
VIN – VOUT = 5V
TJ = Over Temp
3
5.5
VIN – VOUT = 25V
TJ = Over Temp
3
0.3
VIN – VOUT = 35V
TJ = Over Temp
3
tp = 30ms
TJ = 25°C
3
TJ = Over Temp
3
5
3
VIN – VOUT = 3V
IO = 3A
3
60
%
%
%
V
A
0.01
%/W
5
mA
mA
%
0.5
IO = 0.5A
V
mA
0.2
3
V
10
120
TJ = 25°C
TJ = Over Temp
0.6
0.002
IO = 0.5A
VIN – VOUT = 25V
TJ = Over Temp
6.5
55
TJ = Over Temp
TJ = Over Temp
6
0.1
TJ = 25°C
VIN – VOUT = 5V
5
0.5
VIN – VOUT = 3V
TJ = 25°C
IPIN
0.05
Unit
10
mA
0.003
%VO
75
dB
Notes
1. Test Conditions unless otherwise stated:
VIN = 1.5 to 35V, or Maximum Input, whichever is less.
IO = 10mA to 5A.
2. These specifications are only applicable for power dissipations of 45 Watts over a limited range of VIN – VOUT.
3. Over Temp. = Over specified Junction Temperature Range (See Absolute Maximum Ratings).
4. Low duty cycle pulse test with Kelvin connections required. Changes in output voltage are covered under the specification
for thermal regulation.
5. Bandwidth of 10Hz to 10kHz.
6. 120Hz input ripple, 15V = 64dB min. COUT (CADJ) = 25mF.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
Prelim. 7/00
SEME
LT1084M
LAB
MILITARY VERSION
K Package (TO–3)
G & IG Packages (TO–257)
40.01 (1.575)
Max.
10.41 (0.410)
10.72 (0.422)
4.83 (0.190)
5.46 (0.215)
0.89 (0.035)
1.14 (0.045)
22.23 (0.875)
Max.
11.43 (0.450)
6.35 (0.250)
1.09 (0.043)
0.97 (0.038)
Dia.
1.63 (0.064)
1.52 (0.060)
1 6.3 8 (0 .64 5)
1 6.8 9 (0 .66 5)
1 0.4 1 (0.4 1)
1 0.9 2 (0.4 3)
3.05 (0.120)
Ø
3.30 (0.130)
1 2 3
12.70 (0.50)
19.05 (0.75)
4.47 (0.176)
Rad.
2 Pls.
1 3.39 (0.5 27)
1 3.64 (0.5 37)
26.67
(1.050)
Max.
12.19 (0.48)
11.18 (0.44)
2.54 ± 0.08
(0.10 ± 0.003)
0.64 (0.025)
0.89 (0.035)
3.05 ± 0.08
(0.12 ± 0.003)
30.40 (1.197)
29.90 (1.177)
SMD1 Package
0 .7 6
(0 .0 3 0 )
m in .
11.18 (0.440)
10.67 (0.420)
4 .1 4 (0 .1 6 3 )
3 .8 4 (0 .1 5 1 )
2
3 .7 0 (0 .1 4 6 )
3 .4 1 (0 .1 3 4 )
0 .8 9
(0 .0 3 5 )
m in .
3 .7 0 (0 .1 4 6 )
3 .4 1 (0 .1 3 4 )
1
3
1 0 .6 9 (0 .4 2 1 )
1 0 .3 9 (0 .4 0 9 )
1
LT1084MK
Pin
1
2
Fixed
Adjustable
COMMON
ADJUST
INPUT
INPUT
Case is OUTPUT
Pin
1
2
3
Fixed
Adjustable
COMMON
ADJUST
OUTPUT
OUTPUT
INPUT
INPUT
Case is OUTPUT
7 (0
8 (0
8 (0
8 (0
.3 8
.3 6
.4 5
.4 4
1 )
9 )
6 )
4 )
0 .5 0 (0 .0 2 0 )
0 .2 6 (0 .0 1 0 )
LT1084MSM
Pin
1
2
3
Fixed
COMMON
OUTPUT
INPUT
Pin
1
2
3
Fixed
Adjustable
COMMON
ADJUST
OUTPUT
OUTPUT
INPUT
INPUT
Case is ISOLATED
LT1084MG
Semelab plc.
2
9 .6
9 .3
1 1 .5
1 1 .2
16.97 (0.668)
16.87 (0.664)
3 .6 0 (0 .1 4 2 )
M a x .
1 6 .0 2 (0 .6 3 1 )
1 5 .7 3 (0 .6 1 9 )
4.09 (0.161)
3.84 (0.151)
2 Pls
Adjustable
ADJUST
OUTPUT
INPUT
LT1084MIG
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
E-mail: [email protected]
Website: http://www.semelab.co.uk
Prelim. 7/00