LM1084IS-12 National Semiconductor, LM1084IS-12 Datasheet - Page 4

• Manufacturer Part Number: LM1084IS-12
• Description: 5A Low Dropout Positive Regulators
• Manufacturer: National Semiconductor

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I
Symbol
LIMIT
Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in-
tended to be functional, but specific performance is not guaranteed. For guaranteed specifications and the test conditions, see the Electrical Characteristics.
Note 2: Power dissipation is kept in a safe range by current limiting circuitry. Refer to Overload Recovery in Application Notes.
Note 3: The maximum power dissipation is a function of T
is P
Note 4: For testing purposes, ESD was applied using human body model, 1.5k
Note 5: Typical Values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or statistical analysis.
Note 7: I
dissipation for the LM1084 is only achievable over a limited range of input-to-output voltage.
Note 8: Load and line regulation are measured at constant junction temperature, and are guaranteed up to the maximum power dissipation of 30W. Power dissipa-
tion is determined by the input/output differential and the output current. Guaranteed maximum power dissipation will not be available over the full input/output range.
Note 9: Dropout voltage is specified over the full output current range of the device.
Typicals and limits appearing in normal type apply for T
junction temperature range for operation.
D
= (T
FULLLOAD
J(max)
–T
Temperature
Stability
Long Term
Stability
Current Limit
Minimum Load
Current (Note
10)
Quiescent
Current
Thermal
Regulation
Ripple Rejection
Adjust Pin
Current
Adjust Pin
Current Change
RMS Output
Noise
(% of V
Thermal
Resistance
Junction-to-Case
A
is defined in the current limit curves. The I
Parameter
)/
JA
. All numbers apply for packages soldered directly into a PC board. Refer to Thermal Considerations in the Application Notes.
OUT
)
LM1084-ADJ
V
V
LM1084-3.3
V
LM1084-5.0
V
LM1084-12
V
LM1084-ADJ
V
LM1084-3.3
V
LM1084-5.0
V
LM1084-12
V
T
f
LM1084-ADJ, C
LM1084-3.3, V
LM1084-5.0, V
LM1084-12 V
LM1084
10mA
1.5V
T
10Hz
3-Lead TO-263: Control Section/Output Section
3-Lead TO-220: Control Section/Output Section
= 5A
RIPPLE
A
A
IN
IN
IN
IN
IN
IN
IN
IN
IN
−V
−V
= 25˚C, 30ms Pulse
= 125˚C, 1000Hrs
= 8V
= 10V
= 17V
−V
= 18V
OUT
OUT
20V
25V
OUT
V
= 120Hz, = C
f 10kHz
I
IN
(Continued)
OUT
−V
= 5V
= 25V
= 25V
OUT
FULLLOAD
IN
IN
IN
J(max)
I
ADJ
FULL LOAD
= 15V
= 6.3V
= 8V
Conditions
, = 25µF, (V
25V
,
Curve defines the current limit as a function of input-to-output voltage. Note that 30W power
OUT
J
JA
= 25˚C. Limits appearing in Boldface type apply over the entire
, and T
,
= 25µF Tantalum, I
4
in series with 100pF.
A
IN
. The maximum allowable power dissipation at any ambient temperature
−V
O
) = 3V
OUT
(Note
Min
5.5
0.3
5.5
5.5
5.5
60
60
60
54
6)
(Note
0.003
0.003
Typ
8.0
0.6
8.0
8.0
8.0
5.0
5.0
5.0
0.2
0.5
0.3
75
72
68
60
55
5)
5
0.65/2.7
0.65/2.7
(Note
0.015
Max
10.0
10.0
10.0
10.0
120
1.0
6)
5
Units
˚C/W
˚C/W
%/W
mA
mA
mA
mA
dB
dB
dB
dB
µA
µA
%
%
%
A
A
A
A
A