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LM4121 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM4121
Description  Precision Micropower Low Dropout Voltage Reference
Download  16 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4121 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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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.
Maximum Voltage on input or
enable pins
−0.3V to 14V
Output Short-Circuit Duration
Indefinite
Power Dissipation (T
A = 25˚C) (Note 2):
MA05B package −
θ
JA
280˚C/W
Power Dissipation
350 mW
ESD Susceptibility (Note 3)
Human Body Model
Machine Model
2kV
200V
Lead Temperature:
Soldering, (10 sec.)
+260˚C
Vapor Phase (60 sec.)
+215˚C
Infrared (15 sec.)
+220˚C
Operating Range (Note 1)
Storage Temperature Range
−65˚C to +150˚C
Ambient Temperature Range
−40˚C to +85˚C
Junction Temperature Range
−40˚C to +125˚C
Electrical Characteristics
LM4121-1.250V Unless otherwise specified V
IN = 3.3V, ILOAD =0, COUT = 0.01µF, TA =Tj = 25˚C. Limits with
standard typeface are for T
j = 25˚C, and limits in boldface type apply over the −40˚C ≤ TA ≤ +85˚C temperature range.
Symbol
Parameter
Conditions
Min (Note 5)
Typ (Note 4)
Max (Note 5)
Units
V
OUT
Output Voltage Initial
Accuracy
LM4121A-1.250
1.250
±0.2
%
LM4121-1.250
±0.5
TCV
OUT/˚C
Temperature Coefficient
−40˚C
≤ T
A ≤ +125˚C
14
50
ppm/˚c
∆V
OUT/∆VIN
Line Regulation
1.8V
≤ V
IN ≤ 12V
0.0007
0.009
0.012
%/V
∆V
OUT/∆ILOAD
Load Regulation
0mA
≤ I
LOAD ≤ 1 mA
0.03
0.08
0.17
%/mA
1mA
≤ I
LOAD ≤ 5 mA
0.01
0.04
0.1
−1 mA
≤ I
LOAD ≤ 0 mA
0.04
0.12
−5 mA
≤ I
LOAD ≤ −1 mA
0.01
Min-V
IN
Minimum Operating Voltage
I
LOAD = 5mA
1.5
1.8
V
V
N
Output Noise Voltage
0.1 Hz to 10 Hz
20
µV
PP
10 Hz to 10 kHz
30
µV
RMS
I
S
Supply Current
160
250
275
µA
I
SS
Power-down Supply Current
V
IN = 12V
Enable = 0.4V
Enable = 0.2V
1
2
µA
V
H
Logic High Input Voltage
1.6
1.5
V
V
L
Logic Low Input Voltage
0.4
V
0.2
I
H
Logic High Input Current
7
15
µA
I
L
Logic Low Input Current
0.1
µA
I
SC
Short Circuit Current
V
IN = 3.3V, VOUT =0
15
mA
630
V
IN = 12V, VOUT =0
17
630
Hyst
Thermal Hysteresis
(Note 8)
−40˚C
≤ T
A ≤ 125˚C
0.5
mV/V
∆V
OUT
Long Term Stability
(Note 9)
1000 hrs. @ 25˚C
100
ppm
www.national.com
3


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