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LM317T Datasheet(PDF) 2 Page - Fairchild Semiconductor

No. de pieza LM317T
Descripción Electrónicos  Adjustable Voltage Regulator (Positive)
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM317T Datasheet(HTML) 2 Page - Fairchild Semiconductor

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©2000 Fairchild Semiconductor International
Rev. B, May 2000
ABSOLUTE MAXIMUM RATINGS (TA= +25°C, unless otherwise specified)
ELECTRICAL CHARACTERISTICS
(VI - VO = 5V, IO = 0.5A, 0°C ≤ TJ ≤ +125°C, IMAX = 1.5A, PMAX = 20W, unless otherwise specified)
*
Load and line regulation are specified at constant junction temperature. Change in VD due to heating effects must be taken into account separately. Pulse testing
with low duty is used. (PMAX = 20W)
Characteristic
Symbol
Value
Unit
Input-Output Voltage Differential
VI - VO
40
V
Lead Temperature
TLEAD
230
°C
Power Dissipation
PD
Internally limited
W
Operating Temperature Range
TOPR
0 ~ +125
°C
Storage Temperature Range
TSTG
-65 ~ +125
°C
Temperature Coefficient of Output Voltage
VO/T
0.02
%/°C
Characteristic
Symbol
Test Conditions
Min
Typ
Max
Unit
Line Regulation
Rline
TA = +25°C
3V
≤ VI - VO ≤ 40V
0.01
0.04
%/V
3V
≤ VI - VO ≤ 40V
0.02
0.07
%/V
Load Regulation
Rload
TA = +25°C, 10mA ≤ IO ≤ IMAX
VO < 5V
VO ≥ 5V
18
0.4
25
0.5
mV
%/VO
10mA
≤ IO ≤ IMAX
VO < 5V
VO ≥ 5V
40
0.8
70
1.5
mV
%/VO
Adjustable Pin Current
IADJ
46
100
µA
Adjustable Pin Current Change
∆IADJ
3V
≤ VI - VO ≤ 40V
10mA
≤ IO ≤ IMAX
P
≤ PMAX
2.0
5
µA
Reference Voltage
VREF
3V
≤ VIN - VOUT ≤ 40V
10mA
≤ IO ≤ IMAX
PD ≤ PMAX
1.20
1.25
1.30
V
Temperature Stability
STt
0.7
%/VO
Minimum Load Current to
Maintain Regulation
L(MIN)
VI - VO = 40V
3.5
12
mA
Maximum Output Current
IO(MAX)
VI - VO ≤ 15V, PD ≤ PMAX
VI - VO ≤ 40V, PD ≤ PMAX, TA = 25°C
1.0
2.2
0.3
A
RMS Noise, % of VOUT
eN
TA= +25°C, 10Hz ≤ f ≤ 10KHz
0.003
0.01
%/VO
Ripple Rejection
RR
VO = 10V, f = 120Hz
without CADJ
CADJ = 10µF
66
60
75
dB
Long-Term Stability, TJ = THIGH
ST
TA = +25°C for end point
measurements, 1000HR
0.3
1
%
Thermal Resistance Junction to
Case
RθJC
5
°C/W


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