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LM337T Datasheet(PDF) 2 Page - Fairchild Semiconductor

No. de pieza LM337T
Descripción Electrónicos  3-Terminal 1.5A Negative Adjustable Regulator
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM337T Datasheet(HTML) 2 Page - Fairchild Semiconductor

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LM337
2
Absolute Maximum Ratings
Electrical Characteristics
(VI - VO = 5V, IO = 40mA, 0°C ≤ TJ ≤ +125°C, PDMAX = 20W, unless otherwise specified)
Note:
1. Load and line regulation are specified at constant junction temperature. Change in VO due to heating effects must
be taken into account separately. Pulse testing with low duty is used.
2. CADJ, when used, is connected between the adjustment pin and ground.
Parameter
Symbol
Value
Unit
Input-Output Voltage Differential
|VI - VO|40
V
Power Dissipation
PD
Internally limited
W
Operating Temperature Range
TOPR
0 ~ +125
°C
Storage Temperature Range
TSTG
-65 ~ +125
°C
Parameter
Symbol
Conditions
Min.
Typ.
Max.
Unit
Line Regulation (Note1)
Rline
TA = +25°C
3V
I VI - VO I ≤ 40V
-0.01
0.04
%/ V
3V
≤ I VI - VO I ≤ 40V
-
0.02
0.07
Load Regulation (Note1)
Rload
TA = +25°C
10mA
≤ IO ≤ 0.5A
-15
50
mV
10mA
≤ IO ≤ 1.5A
-
15
150
Adjustable Pin Current
IADJ
--
50
100
μA
Adjustable Pin Current Change
ΔIADJ
TA = +25°C
10mA
≤ IO ≤ 1.5A
3V
≤I VI - VO I ≤ 40V
-2
5
μA
Reference Voltage
VREF
TA = +25°C
-1.213 -1.250 -1.287
V
3V
≤ I VI - VO I ≤ 40V
10mA
≤ IO ≤ 1.5A
-1.200 -1.250 -1.300
Temperature Stability
STT
0
°C ≤ ΤJ ≤ +125°C
-
0.6
-
%
Minimum Load Current to Maintain
Regulation
IL(MIN)
3V
≤I VI - VO I ≤ 40V
-
2.5
10
mA
3V
≤I VI - VO I ≤ 10V
-
1.5
6
RMS Noise, % of VOUT
eN
TA = +25°C 10Hz ≤ f ≤10kHz
-
0.003
-
%
Ripple Rejection Ratio
RR
VO = -10V, f = 120Hz
-
60
-
dB
CADJ = 10μF (Note2)
66
77
-
Long Term Stability
ST
TJ = 125°C ,1000Hours
-
0.3
1
%
Thermal Resistance Junction to
Case
R
θJC
--
4
-
°C/W


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