LM394 National Semiconductor, LM394 Datasheet - Page 2

• Manufacturer Part Number: LM394
• Description: 1A Low Dropout Regulator for 5V to 3.3V Conversion
• Manufacturer: National Semiconductor

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Current Gain (h
Current Gain Match
(h
e
Emitter-Base Offset
Voltage
Change in Emitter-Base
Offset Voltage vs
Collector-Base Voltage
(CMRR)
Change in Emitter-Base
Offset Voltage vs
Collector Current
Emitter-Base Offset
Voltage Temperature
Drift
Logging Conformity
Collector-Base Leakage
Collector-Collector
Leakage
Input Voltage Noise
Collector to Emitter
Saturation Voltage
Absolute Maximum Ratings
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
(Note 4)
Collector Current
Collector-Emitter Voltage
Collector-Emitter Voltage
Collector-Base Voltage
Collector-Substrate Voltage
Collector-Collector Voltage
Electrical Characteristics
Note 1 Collector-base voltage is swept from 0 to V
Note 2 Offset voltage drift with V
within 0 003% over the entire temperature range Measurements taken at
Note 3 Logging conformity is measured by computing the best fit to a true exponential and expressing the error as a base-emitter voltage deviation
Note 4 Refer to RETS194X drawing of military LM194H version for specifications
FE
100
LM394C
LM394C
LM394C
LM394C
Match)
Parameter
I
B
I
C
h
FE
FE(MIN)
)
V
I
I
I
I
V
I
I
V
I
(Note 1)
I
V
V
I
I
I
V
I
V
V
V
I
f
I
I
C
C
C
C
C
C
C
C
C
C
C1
C
C
C
C
OS
e
CB
CB
CB
CB
CB
OS
CB
CB
CC
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
e
100 Hz to 100 kHz
e
e
e
e
e
Trimmed to 0 at 25 C
e
e
e
1 mA
100 A
10 A
1 A
10 A to 1 mA
1 A
1 A to 1 mA
1 A to 1 mA
1 A to 0 3 mA
10 A to 1 mA (Note 2)
3 nA to 300 A
100 A V
1 mA I
1 mA I
0 at T
I
C2
0V to V
0V to V
0
0V to V
0V
0 (Note 3)
V
V
Conditions
MAX
MAX
A
e
B
B
e
e
25 C is valid only when the ratio of I
MAX
MAX
MAX
CB
MAX
10 A
100 A
(T
e
(Note 1)
at a collector current of 1 A 10 A 100 A and 1 mA
J
e
0V
25 C)
20 mA
V
MAX
35V
20V
35V
20V
35V
20V
35V
20V
Min
350
350
300
200
a
25 C and temperature extremes
LM194
2
0 08
0 03
0 05
Typ
700
550
450
300
150
0 5
1 0
0 1
1 8
0 2
0 1
25
10
5
Base-Emitter Current
Power Dissipation
Junction Temperature
Storage Temperature Range
Soldering Information
See AN-450 ‘‘Surface Mounting and their Effects on Prod-
uct Reliability’’ for other methods of soldering surface
mount devices
C1
LM194
LM394 LM394B LM394C
Metal Can Package (10 sec )
Dual-In-Line Package (10 sec )
Small Outline Package
to I
Max
0 25
100
0 3
0 1
2 0
Vapor Phase (60 sec )
Infrared (15 sec )
25
25
2
C2
is adjusted to give the initial zero offset This ratio must be held to
Min
300
250
200
150
LM394
Typ
0 08
0 03
0 05
700
550
450
300
150
0 5
1 0
0 1
1 8
0 2
0 1
25
10
5
Max
150
1 0
0 3
0 5
5 0
50
50
4
Min
225
200
150
100
LM394B 394C
0 03
0 05
Typ
500
400
300
200
150
1 0
2 0
0 2
0 1
1 8
0 2
0 1
50
10
5
b
b
b
55 C to
65 C to
25 C to
Max
200
100
1 5
0 5
0 5
5 0
50
5
g
500 mW
a
a
a
10 mA
125 C
150 C
260 C
260 C
215 C
220 C
nV Hz
85 C
Units
V C
V C
nA
nA
%
%
V
V
V
V
V
V