LM1084IT-ADJ National Semiconductor, LM1084IT-ADJ Datasheet - Page 4

• Manufacturer Part Number: LM1084IT-ADJ
• Description: IC, ADJ LDO REG, 1.2V TO 15V, 1.5A TO220
• Manufacturer: National Semiconductor

Specifications of LM1084IT-ADJ

• Primary Input Voltage: 15V
• Output Voltage Adjustable Range: 1.2V To 15V
• Dropout Voltage Vdo: 1.3V
• No. Of Pins: 3
• Output Current: 1.5A
• Operating Temperature Range: -40°C To +125°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
I
LIMIT
Symbol
Electrical Characteristics
Typicals and limits appearing in normal type apply for T
tion temperature range for operation.
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended 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, 1.5kΩ in series with 100pF.
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
dissipation 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.
Note 10: The minimum output current required to maintain regulation.
D
= (T
FULLLOAD
J(max)
Current Limit
Minimum Load
Current (Note 10)
Quiescent Current
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current
Change
Temperature
Stability
Long Term Stability
RMS Output Noise
(% of V
Thermal Resistance
Junction-to-Case
–T
Parameter
A
is defined in the current limit curves. The I
)/θ
OUT
JA
. All numbers apply for packages soldered directly into a PC board. Refer to Thermal Considerations in the Application Notes.
)
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
I
LM1084-ADJ, C
LM1084-3.3, V
LM1084-5.0, V
LM1084-12 V
LM1084
10mA ≤ I
1.5V ≤ V
T
10Hz ≤ f≤ 10kHz
3-Lead TO-263: Control Section/Output Section
3-Lead TO-220: Control Section/Output Section
RIPPLE
OUT
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
≤ 20V
≤ 25V
= 5A
OUT
OUT
OUT
= 120Hz, = C
IN
OUT
= 5V
= 25V
−V
= 25V
(Continued)
OUT
IN
≤ I
IN
IN
FULLLOAD
ADJ
= 15V
FULL LOAD
J(max)
= 6.3V
= 8V
≤ 25V
, = 25µF, (V
Conditions
OUT
, θ
Curve defines the current limit as a function of input-to-output voltage. Note that 30W power
J
JA
= 25˚C. Limits appearing in Boldface type apply over the entire junc-
= 25µF Tantalum,
,
, and T
4
IN
A
−V
. The maximum allowable power dissipation at any ambient temperature
O
) = 3V
(Note 6)
Min
5.5
0.3
5.5
5.5
5.5
60
60
60
54
(Note 5)
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
(Note 6)
0.65/2.7
0.65/2.7
0.015
Max
10.0
10.0
10.0
10.0
120
1.0
5
Units
˚C/W
˚C/W
%/W
mA
mA
mA
mA
dB
dB
dB
dB
µA
µA
%
%
%
A
A
A
A
A