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LM317M Datasheet(PDF) 4 Page - Texas Instruments

No. de pieza LM317M
Descripción Electrónicos  3-Terminal Adjustable Regulator
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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LM317M Datasheet(HTML) 4 Page - Texas Instruments

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LM317M
SLVS297P – APRIL 2000 – REVISED MARCH 2014
www.ti.com
6.4 Thermal Information
LM317M
THERMAL METRIC(1)
DCY
UNIT
4 TERMINALS
RθJA
Junction-to-ambient thermal resistance
60.2
RθJCtop
Junction-to-case (top) thermal resistance
42.0
RθJB
Junction-to-board thermal resistance
9.4
°C/W
ψJT
Junction-to-top characterization parameter
3.4
ψJB
Junction-to-board characterization parameter
9.3
RθJCbot
Junction-to-case (bottom) thermal resistance
n/a
(1)
For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.
6.5 Electrical Characteristics
over recommended operating virtual-junction temperature range, VI – VO = 5 V, IO = 0.1 A (unless otherwise noted)
PARAMETER
TEST CONDITIONS(1)
MIN
TYP
MAX
UNIT
TJ = 25°C
0.01
0.04
Line regulation(2)
VI – VO = 3 V to 40 V
%/V
Full temperature range
0.02
0.07
TJ = 25°C
0.1
0.5
Load regulation
IO = 10 mA to 500 mA
%VO
Full temperature range
0.3
1.5
ADJUST terminal current
50
100
μA
VI – VO = 3 V to 40 V,
Change in ADJUST terminal current
0.2
5
μA
IO = 10 mA to 500 mA
VI – VO = 3 V to 40 V,
Reference voltage
1.2
1.25
1.3
V
IO = 10 mA to 500 mA
Output-voltage temperature stability
0.7
%
Minimum load current
3.5
10
mA
to maintain regulation
VI – VO ≤ 15 V
500
900
Maximum output current
mA
VI – VO = 40 V, PD ≤ PD(max),
TJ = 25°C
150
250
RMS output noise voltage (% of VO)
f = 10 Hz to 10 kHz,
TJ = 25°C
0.003
%VO
CADJ = 0
(3)
65
VO = 10 V, f = 120 Hz,
Ripple rejection
dB
TJ = 25°C
CADJ = 10 μF
(3)
66
80
Long-term stability
TJ = 25°C
0.3
1
%/1k hrs
(1)
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.
(2)
Line voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
(3)
CADJ is connected between the ADJUST terminal and ground.
4
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