FT1084M
Military Version
5 Amp Positive Voltage Regulator
Features
• 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 &
TO–257 (isolated & non-isolated) Packages.
• Military Temperature Range (–55 to +150°C)
FT Device
FT1084MK-XX
FT1084MG-XX
FT1084MIG-XX
FT1084MSM-XX
Equivalent Device
LT1084MK–XX
LT1084MG–XX
LT1084MIG–XX
LT1084MSM–XX
Package Style
TO–3
TO–257
Isolated TO–257
SMD1
Note
1) –XX = Voltage Option: 3.3, 5 or 12
–XX = Left blank for Adjustable Option.
Description:
The FT1084 voltage regulators are monolithic
INPUT
Integrated circuits designed for use in applica-
tions requiring a well regulated positive output
voltage.
Features include full power usage of up to 5A
SAFE AREA
PROTECT ION
CU RR EN T
LIMITING
AMPLIFIER
L IM I T
OU TPUT
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 utili-
ADJUST
V
R E F
SEN SE
T H E R M AL
O V ER L O AD
VOL T AGE
REGUL ATION
AMPLIFIER
lised for high reliability and low thermal resistance,
whilst the SMD1 package is designed for surface
mount applications.
Absolute maximum ratings
(T
case
= 25°C unless otherwise stated)
V
IN
P
D
R
θJC
R
θJC
R
θJC
T
J
T
STG
T
LEAD
Input – Output Voltage Differential
Power Dissipation
Thermal Resistance Junction To Case
Thermal Resistance Junction To Case
Thermal Resistance Junction To Case
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (for 10 sec.)
TO–3
TO–3
SMD1
SMD1
TO–257
TO–257
Control
Power
Control
Power
Control
Power
Control
Power
35V
Internally limited *
0.76°C / W
2.3°C / W
0.79°C / W
4.0°C / W
0.79°C / W
4.0°C / W
–55 to 150°C
–55 to 200°C
–65 to 150°C
300°C
REV 1.0
1/6
2008
FT1084M
Military Version
5 Amp Positive Voltage Regulator
Electrical
Characteristics
(T
J
= 25°C Unless otherwise stated)
Parameter
Output
Voltage Test Conditions
3.3
V
IN
– V
OUT
= 6.3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 8V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 15V
I
O
= 10mA to 5A
V
IN
– V
OUT
= V
O
+ 3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 1.5 to 15V
REG
(LINE)
4
FT1084MK
&
FT1084MSM
Min.
Typ.
3.3
3.3
5
5
12
12
1.25
1.25
0.015
3
1,2
Max.
3.333
3.366
5.05
5.10
12.12
12.24
1.262
1.270
0.2
Unit
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
T
J
= 25°C
T
J
= Over Temp
I
O
= 10mA
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
3
3
3
3
3
3
3
3
3
3.267
3.234
4.95
4.90
11.88
11.76
1.238
1.225
V
O
4
Output Voltage
5
V
12
V
REF
4
Reference Voltage
ADJ.
V
Line Regulation
I
O
= 10mA
V
IN
– V
OUT
= 1.5 to 35V
T
J
= Over Temp
3
0.035
0.05
0.1
0.2
1.3
5.5
0.3
6.5
0.6
10
0.002
55
0.01
0.5
0.3
0.4
1.5
%
%
REG
(LOAD)
V
D
I
CL
I
Q
4
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
V
IN
– V
OUT
= 3V
V
IN
– V
OUT
= 3V
ΔV
OUT
,
ΔV
REF
= 1%
V
IN
– V
OUT
= 5V
V
IN
– V
OUT
= 25V
V
IN
– V
OUT
= 35V
t
p
= 30ms
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
V
IN
– V
OUT
= 5V
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
6
3
3
3
%
V
A
mA
%/W
μA
μA
%
REG
(THERM)
Thermal Regulation
I
PIN
ΔI
PIN
T
S
I
O
V
N
R
A
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
120
0.2
I
O
= 0.5A
I
O
= 0.5A
0.5
5
Minimum Load Current
RMS Output Noise
5
V
IN
– V
OUT
= 25V
3
5
0.003
10
mA
%V
O
dB
Ripple Rejection Ratio
V
IN
– V
OUT
= 3V
T
J
= Over Temp
3
I
O
= 3A
60
75
1. Test Conditions unless otherwise stated:
V
IN
= 1.5 to 35V, or Maximum Input, whichever is less.
I
O
= 10mA to 5A.
2. These specifications are only applicable for power dissipations of 45 Watts over a limited range of V
IN
– V
OUT
.
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. C
OUT
(C
ADJ
) = 25μF.
REV 1.0
2/6
2008
FT1084M
Military Version
5 Amp Positive Voltage Regulator
Electrical
Characteristics
Parameter
(T
J
= 25°C Unless otherwise stated)
1,2
FT1084MG
Min.
Typ.
3.3
3.3
5
5
12
12
1.25
1.25
0.015
3
Output
Voltage Test Conditions
3.3
V
IN
– V
OUT
= 6.3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 8V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 15V
I
O
= 10mA to 5A
Max.
3.333
3.366
5.05
5.10
12.12
12.24
1.262
1.270
0.2
Unit
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
T
J
= 25°C
T
J
= Over Temp
I
O
= 10mA
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
3
3
3
3
3
3
3
3
3
3.267
3.234
4.95
4.90
11.88
11.76
1.238
1.225
V
O
4
Output Voltage
5
V
12
V
REF
4
Reference Voltage
ADJ.
V
IN
– V
OUT
= V
O
+ 3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 1.5 to 15V
I
O
= 10mA
V
IN
– V
OUT
= 1.5 to 35V
T
J
= Over Temp
3
V
REG
(LINE)
4
Line Regulation
0.035
0.05
0.4
0.7
1.3
5.5
0.3
6.5
0.6
10
0.002
55
0.01
0.5
0.5
0.6
1.5
%
%
REG
(LOAD)
V
D
I
CL
I
Q
4
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
V
IN
– V
OUT
= 3V
V
IN
– V
OUT
= 3V
ΔV
OUT
,
ΔV
REF
= 1%
V
IN
– V
OUT
= 5V
V
IN
– V
OUT
= 25V
V
IN
– V
OUT
= 35V
t
p
= 30ms
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
V
IN
– V
OUT
= 5V
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
6
3
3
3
%
V
A
mA
%/W
μA
μA
%
REG
(THERM)
Thermal Regulation
I
PIN
ΔI
PIN
T
S
I
O
V
N
R
A
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
120
0.2
I
O
= 0.5A
I
O
= 0.5A
0.5
5
Minimum Load Current
RMS Output Noise
5
V
IN
– V
OUT
= 25V
3
5
0.003
10
mA
%V
O
dB
Ripple Rejection Ratio
V
IN
– V
OUT
= 3V
T
J
= Over Temp
3
I
O
= 3A
60
75
1. Test Conditions unless otherwise stated:
V
IN
= 1.5 to 35V, or Maximum Input, whichever is less.
I
O
= 10mA to 5A.
2. These specifications are only applicable for power dissipations of 45 Watts over a limited range of V
IN
– V
OUT
.
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. C
OUT
(C
ADJ
) = 25μF.
REV 1.0
3/6
2008
FT1084M
Military Version
5 Amp Positive Voltage Regulator
Electrical
Characteristics
Parameter
(T
J
= 25°C Unless otherwise stated)
1,2
FT1084MIG
Min.
Typ.
3.3
3.3
5
5
12
12
1.25
1.25
0.015
3
Output
Voltage Test Conditions
3.3
V
IN
– V
OUT
= 6.3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 8V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 15V
I
O
= 10mA to 5A
Max.
3.333
3.366
5.05
5.10
12.12
12.24
1.268
1.281
0.2
Unit
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
I
O
= 10mA
T
J
= Over Temp
T
J
= 25°C
T
J
= Over Temp
I
O
= 10mA
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
3
3
3
3
3
3
3
3
3
3.267
3.234
4.95
4.90
11.88
11.76
1.231
1.219
V
O
4
Output Voltage
5
V
12
V
REF
4
Reference Voltage
ADJ.
V
IN
– V
OUT
= V
O
+ 3V
I
O
= 10mA to 5A
V
IN
– V
OUT
= 1.5 to 15V
I
O
= 10mA
V
IN
– V
OUT
= 1.5 to 35V
T
J
= Over Temp
3
V
REG
(LINE)
4
Line Regulation
0.035
0.05
0.7
0.8
1.3
5.5
0.3
6.5
0.6
10
0.002
55
0.01
0.5
1.25
1.65
1.5
%
%
REG
(LOAD)
V
D
I
CL
I
Q
4
Load Regulation
Dropout Voltage
Current Limit
Quiescent Current
V
IN
– V
OUT
= 3V
V
IN
– V
OUT
= 3V
ΔV
OUT
,
ΔV
REF
= 1%
V
IN
– V
OUT
= 5V
V
IN
– V
OUT
= 25V
V
IN
– V
OUT
= 35V
t
p
= 30ms
T
J
= 25°C
T
J
= Over Temp
T
J
= Over Temp
V
IN
– V
OUT
= 5V
T
J
= Over Temp
T
J
= Over Temp
T
J
= 25°C
6
3
3
3
%
V
A
mA
%/W
μA
μA
%
REG
(THERM)
Thermal Regulation
I
PIN
ΔI
PIN
T
S
I
O
V
N
R
A
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
120
0.2
I
O
= 0.5A
I
O
= 0.5A
0.5
5
Minimum Load Current
RMS Output Noise
5
V
IN
– V
OUT
= 25V
3
5
0.003
10
mA
%V
O
dB
Ripple Rejection Ratio
V
IN
– V
OUT
= 3V
T
J
= Over Temp
3
I
O
= 3A
60
75
1. Test Conditions unless otherwise stated:
V
IN
= 1.5 to 35V, or Maximum Input, whichever is less.
I
O
= 10mA to 5A.
2. These specifications are only applicable for power dissipations of 45 Watts over a limited range of V
IN
– V
OUT
.
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. C
OUT
(C
ADJ
) = 25μF.
REV 1.0
4/6
2008
FT1084M
Military Version
5 Amp Positive Voltage Regulator
K Package (TO–3)
40.01 (1.575)
Max.
G & IG Packages (TO–257)
10.41 (0.410)
10.72 (0.422)
0.89 (0.035)
1.14 (0.045)
4.83 (0.190)
5.46 (0.215)
1 0.4 1 (0.4 1)
1 0.9 2 (0.4 3)
4.47 (0.176)
Rad.
2 Pls.
1 3.39 (0.5 27)
1 3.64 (0.5 37)
3.05 (0.120)
Ø
3.30 (0.130)
1 2 3
11.43 (0.450)
6.35 (0.250)
1.09 (0.043)
0.97 (0.038)
Dia.
30.40 (1.197)
29.90 (1.177)
12.19 (0.48)
11.18 (0.44)
12.70 (0.50)
19.05 (0.75)
22.23 (0.875)
Max.
1.63 (0.064)
1.52 (0.060)
0.64 (0.025)
0.89 (0.035)
2.54 ± 0.08
(0.10 ± 0.003)
3.05 ± 0.08
(0.12 ± 0.003)
SMD1 Package
2
11.18 (0.440)
10.67 (0.420)
4.09 (0.161)
3.84 (0.151)
2 Pls
4 .1 4 (0 .1 6 3 )
3 .8 4 (0 .1 5 1 )
0 .8 9
(0 .0 3 5 )
m in .
3 .7 0 (0 .1 4 6 )
3 .7 0 (0 .1 4 6 )
3 .4 1 (0 .1 3 4 )
3 .4 1 (0 .1 3 4 )
3 .6 0 (0 .1 4 2 )
M a x .
1
3
0 .7 6
(0 .0 3 0 )
m in .
1 0 .6 9 (0 .4 2 1 )
1 0 .3 9 (0 .4 0 9 )
1
2
16.97 (0.668)
16.87 (0.664)
9 .6
9 .3
1 1 .5
1 1 .2
7 (
8 (
8 (
8 (
0 .3
0 .3
0 .4
0 .4
8 1
6 9
5 6
4 4
)
)
1 6 .0 2 (0 .6 3 1 )
1 5 .7 3 (0 .6 1 9 )
1 6.3 8 (0 .64 5)
1 6.8 9 (0 .66 5)
0 .5 0 (0 .0 2 0 )
0 .2 6 (0 .0 1 0 )
26.67
(1.050)
Max.
)
)
FT1084MK
Pin
1
2
Fixed
Adjustable
COMMON
ADJUST
INPUT
INPUT
Case is OUTPUT
Pin
1
2
3
FT1084MSM
Fixed
COMMON
OUTPUT
INPUT
Adjustable
ADJUST
OUTPUT
INPUT
FT1084MG
Pin
1
2
3
Fixed
Adjustable
COMMON
ADJUST
OUTPUT
OUTPUT
INPUT
INPUT
Case is OUTPUT
Pin
1
2
3
FT1084MIG
Fixed
Adjustable
COMMON
ADJUST
OUTPUT
OUTPUT
INPUT
INPUT
Case is ISOLATED
REV 1.0
5/6
2008
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