LM1085
SNVS038H –JULY 1999–REVISED JANUARY 2015
www.ti.com
Electrical Characteristics (continued)
Minimum and Maximum limits are ensured through test, design, or statistical correlation. Typical values represent the most
likely parametric norm at T
J
= 25°C, and are provided for reference purposes only.
PARAMETER TEST CONDITIONS MIN
(1)
TYP
(2)
MAX
(1)
UNIT
LM1085-ADJ, V
IN
−V
OUT
= 5 V, –40°C ≤ T
J
≤ 125°C 3.2 5.5
A
LM1085-ADJ, V
IN
−V
OUT
= 25 V, –40°C ≤ T
J
≤ 125°C 0.2 0.5
I
LIMIT
Current Limit LM1085-3.3, V
IN
= 8.0 V, –40°C ≤ T
J
≤ 125°C 3.2 5.5 A
LM1085-5.0, V
IN
= 10 V, –40°C ≤ T
J
≤ 125°C 3.2 5.5 A
LM1085-12, V
IN
= 17 V, –40°C ≤ T
J
≤ 125°C 3.2 5.5 A
Minimum Load
LM1085-ADJ, V
IN
−V
OUT
= 25 V, –40°C ≤ T
J
≤ 125°C 5.0 10.0 mA
Current
(6)
LM1085-3.3, V
IN
≤ 18 V, –40°C ≤ T
J
≤ 125°C 5.0 10.0 mA
I
GND
Quiescent Current LM1085-5.0, V
IN
≤ 20 V, –40°C ≤ T
J
≤ 125°C 5.0 10.0 mA
LM1085-12, V
IN
≤ 25 V, –40°C ≤ T
J
≤ 125°C 5.0 10.0 mA
Thermal Regulation T
A
= 25°C, 30ms Pulse .004 0.02 %/W
f
RIPPLE
= 120Hz, C
OUT
= 25µF Tantalum, I
OUT
= 3A,
LM1085-ADJ, C
ADJ
= 25µF, (V
IN
−V
O
) = 3 V, –40°C ≤ T
J
60 75 dB
≤ 125°C
Ripple Rejection
LM1085-3.3, V
IN
= 6.3 V, –40°C ≤ T
J
≤ 125°C 60 72 dB
LM1085-5.0, V
IN
= 8.0 V, –40°C ≤ T
J
≤ 125°C 60 68 dB
LM1085-12, V
IN
= 15 V, –40°C ≤ T
J
≤ 125°C 54 60 dB
LM1085–ADJ 55
I
ADJ
Adjust Pin Current µA
LM1085–ADJ, –40°C ≤ T
J
≤ 125°C 120
Adjust Pin Current LM1085–ADJ, 10mA ≤ I
OUT
≤ I
FULL LOAD
, 1.5 V ≤
ΔI
ADJ
0.2 5 µA
Change V
IN
−V
OUT
≤ 25 V, –40°C ≤ T
J
≤ 125°C
Temperature Stability –40°C ≤ T
J
≤ 125°C 0.5
Long Term Stability T
A
= 125°C, 1000 Hrs 0.3 1.0
RMS Output Noise
10Hz ≤ f ≤ 10 kHz 0.003
(% of V
OUT
)
(6) The minimum output current required to maintain regulation.
6 Submit Documentation Feedback Copyright © 1999–2015, Texas Instruments Incorporated
Product Folder Links: LM1085
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