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Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
(Note 2)
Reverse Current
Forward Current
Operating Temperature Range (Note 3)
LM185 Series
LM285 Series
LM385 Series
30mA
10mA
55C to 125C
40C to 85C
0C to 70C
Storage Temperature
Soldering Information
TO-92 Package (10 sec.)
TO-46 Package (10 sec.)
SO Package
Vapor Phase (60 sec.)
Infrared (15 sec.)
See An-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
55C to 150C
260C
300C
215C
220C
Electrical Characteristics
(Note 4)
Parameter
Conditions
LM185, LM285
LM185BX,
LM185BY
LM185B,
LM285BX,
LM285BY
Tested Design Tested Design
Limit
Limit
(Note
5)
6)
1.252
LM385
Typ
Typ
LM385BX,
LM285
LM385BY
LM385
Units
(Limit)
Tested Design Tested Design
Limit
Limit
(Note
5)
6)
1.252
1.255
Limit
(Note
5)
1.265
Limit
(Note
6)
1.270
1.240
Limit
(Note
5)
1.265
Limit
(Note
6)
1.270
(Note
(Note
Reference
Voltage
I
R
= 100μA
1.240
V
1.255
1.228
1.215
1
(max)
V
(min)
mV
1.215
1.205
1.228
1.215
1.215
1.205
Reference
Voltage
Change with
Current
Dynamic Output I
R
= 100μA, f = 100Hz
Impedance
I
AC
= 0.1 I
R
I
MIN
<
I
R
<
1mA
0.2
1.5
1
1.5
0.2
1
1.5
1
1.5
1mA
<
I
R
<
20mA
4
10
20
10
20
5
15
25
15
25
(max)
V
OUT
=
V
REF
V
OUT
=
5.3V
0.3
0.4
0.7
1
Reference
Voltage
Change with
Output
Voltage
Feedback
Current
Minimum
Operating
Current (see
curve)
Output
Wideband
Noise
I
R
= 100μA
mV
1
3
6
3
6
2
5
10
5
10
(max)
13
20
25
20
25
16
30
35
30
35
nA
(max)
μA
V
OUT
= V
REF
6
9
10
9
10
7
11
13
11
13
V
OUT
= 5.3V
30
45
50
45
50
35
55
60
55
60
(max)
I
R
= 100μA, 10Hz
<
f
<
10kHz
V
OUT
= V
REF
V
OUT
= 5.3V
50
170
50
170
μV
rms
L
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