Seme LAB LM1084HN 5 amp low dropout positive Datasheet

LM1084HN
MECHANICAL DATA
Dimensions in mm
6.86 (0.270)
6.09 (0.240)
4.19 (0.165)
3.94 (0.155)
Dia.
21.21 (0.835)
20.70 (0.815)
13.84 (0.545)
13.58 (0.535)
1 2 3
1.14 (0.707)
0.88 (0.035)
FEATURES
19.05 (0.750)
12.70 (0.500)
17.96 (0.707)
17.70 (0.697)
17.65 (0.695)
17.39 (0.685)
5 AMP LOW DROPOUT POSITIVE
ADJUSTABLE REGULATOR IN
TO258 HERMETIC PACKAGE
• Ajustable Output Voltage
• Output Voltage Tolerance ±1%
• Hermetic Isolated TO258
5.08 (0.200)
BSC
3.56 (0.140)
BSC
1.65 (0.065)
1.39 (0.055)
Typ.
• Short Circuit Current Limit
• Low Dropout Voltage
TO–258 METAL PACKAGE
Pin 1– Adjust
Pin 2 – Vout
• Built in Thermal Overload Protection
Pin 3 – Vin
• Screening Options Available
The LM1084HN low drop positive adjustable
regulator is designed to provide 5A with
higher efficiency than a standard device. All
internal circuitry is designed to operate
down to 1V input/output differential.
ABSOLUTE MAXIMUM RATINGS @25°C
Power Dissipation (Pd)
Input - Output Voltage Differential
Operating Junction Temperature Range
Storage Temperature Range
Lead Temperature (Soldering 10 seconds)
Thermal Resistance:
qjc (Isolated)
qjc (Non-Isolated)
Maximum Output Current
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Internally Limited
35V
-55°C to + 150°C
-65°C to + 150°C
300°C
2.75°C/W
2.3°C/W
5.0A
02/00
LM1084HN
ELECTRICAL CHARACTERISTICS (Per Diode)
Parameter
Test Conditions
Min.
VIN - VOUT =3.0V
VREF
Reference Voltage
IOUT = 10mA
1.5V £ VIN - VOUT £ 25V
10mA £ IOUT £ IFL
1.5 £ VIN - VOUT £ 15V
VOUT
Line Regulation (Note 1)
VIN
1.238
TA = 25°C
IOUT = 10mA
TA = 25°C
•
1.225
•
Load Regulation
VDO
VIN
IOUT = IFL
Thermal Regulation
30ms pulse
Ripple Rejection
VOUT
0.3
%
•
0.4
•
1.5
V
0.015
%W
TA = +25°C
f = 120Hz, CAdj = 25mF
COUT = 25mF (tantalum), IFL = 3.0A •
60
dB
VIN - VOUT =3.0V
IAdj
Ajust Pin Current
3I
Adj
Ajust Pin Current Change
IMin
Minimum Load Current
ILim
Current Limit
VOUT
Temperature Stability (Note 2)
T
VOUT
VREF = 1%
D
1.270
0.5
10mA £ IOUT £ IFL
Dropout Voltage
1.262
%
TA = 25°C
VIN
Unit
0.2
IOUT =10mA
VOUT
Max.
V
15V £ VIN - VOUT £ 35V
VIN - VOUT =3.0V
Typ.
Long Term Stability (Note 2)
T
1.5V £ VIN - VOUT £ 25V
•
120
m
A
•
5.0
m
A
10
mA
VIN - VOUT = 25V
•
•
•
Tj = -55 to +125°C
•
10mA £ IOUT £ IFL
1.5V £ VIN - VOUT £ 25V
10mA £ IOUT £ IFL
VIN - VOUT = 25V
VIN - VOUT = 5.0V
5.5
A
0.3
1.5
%
TA = +125°C, t = 1000hrs
1.0
Notes:
1 Line and Load Regulation are measured at a constant junction temperature using a low duty cycle pulse technique.
Power dissipation is internally limted. Regulation is guaranteed up to maximum power dissipation of 45 W. Power
dissipation is determined by the input/output differential voltage and the output current. Guaranteed maximum power
dissipation is not available over the full input/output voltage range.
2 Guaranteed by design, characterization or correlation to other tested parameters.
3
• Specification applies over the full operating temperature range.
4 IFL is defined as the minimum value of current limit as a function of input to output voltage.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
02/00
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