LM317MD - Taitron Components, Inc.

0.5A Adjustable Positive
Voltage Regulator
LM317M
0.5A Adjustable Positive Voltage Regulator
General Description
z
LM317M is an adjustable 3-terminal positive voltage regulator capable of supplying
in excess of 0.5A over an output range of 1.2V to 37V.
LM317M is exceptionally easy to use and requires only two external resistors to set
the output voltage.Furthermore,both line regulation and load regulation are better
than fixed voltage regulators,Additionally,the LM317M include on-chip current limiting,
thermal overload protection and safe-operating-area protection.
TO-220
z
z
SOT-223
LM317M Series are available in TO-220,SOT-223 and DPAK (TO-252) packages.
DPAK
(TO-252)
Features
Adjustable Output Voltage from 1.2V to 37V
z Output Current in excess of 0.5A
z Input-Output Voltage Differencial:40V (Max)
z Line regulation: typical 0.01%/V
z Load regulation:typical 0.1%
z Internal Thermal Overload Protection
z Internal Short-circuit Current Limiting
z Output transistor safe operation area (SOA) compensation
z Floating operation for high voltage applications
z RoHS compliance and Halogen free
z
Applications:
PC Mother Board
z Graphic Card
z NIC/Switch
z LCD Monitor , DVD Video Player and Printer
z Telecom Equipment and other Peripheral Equipment
z
TAITRON COMPONENTS INCORPORATED www.taitroncomponents.com
Tel:
Fax:
(800)-TAITRON (800)-824-8766
(800)-TAITFAX (800)-824-8329
(661)-257-6060
(661)-257-6415
Rev. A/LX
Page 1 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Ordering Information
Pin Configuration
1: ADJ 2: OUTPUT 3: INPUT
TO-220
1: ADJ 2: OUTPUT 3: INPUT
SOT-223
1: ADJ 2: OUTPUT 3: INPUT
DPAK
(TO-252)
Outline
Temperatue Range
Part Number
Packing Type
TO-220
0 to 125°C
LM317MT-85-RG30
Tube
DPAK
(TO-252)
0 to 125°C
LM317MD-85-RG30
Tape& Reel
LM317MD-85-UG
Tube
SOT-223
0 to 125°C
LM317MH-85-RG30
Tape& Reel
Rev. A/LX
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Page 2 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Block Diagram
Absolute Maximum Ratings (Note1)
Symbol
VIN-VO
PD
Description
Input - Output Voltage Differential
Power Dissipation
Unit
40
V
Internally limited
TOPR
Operating Temperature Range
TSTG
Storage Temperature Range
TJ
Rating
Junction Temperature
W
0~ 125
°C
-40 ~ 150
°C
125
°C
Rating
Unit
Package Thermal Data
Symbol
Description
Thermal Resistance,
Junction to Ambient
Thermal Resistance,
Junction to case
TO-220
SOT-223
DPAK (TO-252)
TO-220
SOT-223
DPAK (TO-252)
70
245
92
5
15
5
°C/W
°C/W
Rev. A/LX
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Page 3 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Recommend Operating Ratings (Note1)
Symbol
Description
VIN-VO
Io
TA
Input - Output Voltage Differential
Output Current
Operating Ambient Temperatrue
Ratings
Min
Max
37
0.5
0
125
Unit
V
A
°C
Note1:Absolute maximum ratings indicate limits beyond which damage to the device may occur.
Recommend opertaing ratings indicate conditions for which the devices is functional,but do not guarantee
specific specifation limits.For guarantee specifation and test conditions,see the Electrical Charctristics,the
guarantee specifation apply only for the test conditions listed.Some performance characteristics may
degrade when the device is not operated under the listed test conditions
Electrical Characteristics
(VIN-VO=5V, IO=0.1A, PMAX=7.5W, TA=25°C ,unless otherwise specified)
Symbol
Description
∆VLINE
Line Regulation
∆VLOAD
Load Regulation
Min.
Typ.
Max.
Unit
Conditions
-
0.01
0.02
0.04
0.07
%/V
3V≤VIN-VO≤40V
3V≤VIN-VO≤40V,0°C≤TJ≤125°C
-
5
25
mV
Vo≤5V
-
0.1
0.5
%Vo
Vo>5V
10mA≤IO≤0.5A
IADJ
Adjustable Pin Current
-
50
100
µA
∆IADJ
Adjustable Pin Current
Change
-
0.2
5
µA
10mA≤IO≤0.5A, 3V≤VIN-VO≤40V
VREF
Reference Voltage
1.20
1.25
1.30
V
10mA≤IO≤0.5A, 3V≤VIN-VO≤40V,
Pd≤7.5W
IL(MIN)
Minimum Load Current
to Maintain Regulation
-
3.5
10
mA
IO(MAX)
Maximum Output
Current
0.5
0.9
-
0.15
0.25
-
-
0.7
-
%
0.3
1
%/1000Hrs
-
0.003
-
% VO
-
65
-
66
80
-
-
Output Voltage
Temperature Stability
-
Long-Term Stability
eN
PSRR
RMS Output Noise
Voltage,% of VO
Power Supply Ripple
Rejection Ratio
A
dB
-
VIN-VO=40V
VIN-VO≤40V, P≤7.5W
VIN-VO≤40V, P≤7.5W
TMIN≤TJ≤TMAX
10Hz≤f≤10kHz
CADJ=0
CADJ=10µF
VO=10V,
f=120Hz
Rev. A/LX
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Page 4 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Typical Characteristics Curves
Fig.2 ∆VLINE -TJ
Load Regulation, ∆VLOAD (%)
LINE Regulation, ∆VLINE (%/V)
Fig.1 ∆VLOAD -TJ
Operation Junction Temperature, TJ (°C)
Operation Junction Temperature ,TJ (°C)
Fig.4 IO(MIN) Vs VIN-VO
Output Current Limit, IO (A)
Min Output Current ,IO(Min) (mA)
Fig.3 IO Vs VIN-VO
Input-Output Voltage Differential,VIN-VO (V)
Input-Output Voltage Differential, VIN-VO (V)
Rev. A/LX
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Page 5 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Fig.5 IADJ -TJ
Adjustment Current , IADJ (uA)
Power Supply Ripple Rejection
Ratio,PSRR(dB)
Fig.6 PSRR-f
Operation Junction Temperature, TJ (°C)
Frequency f (Hz)
Rev. A/LX
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Page 6 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Typical Applications
Rev. A/LX
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Page 7 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
Dimensions in inches (mm)
TO-220
Rev. A/LX
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Page 8 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
SOT-223
Rev. A/LX
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Page 9 of 10
0.5A Adjustable Positive Voltage Regulator
LM317M
DPAK (TO-252)
How to contact us:
US HEADQUARTERS
28040 WEST HARRISON PARKAWAY, VALENCIA, CA 91355-4162
Tel: (800) TAITRON (800) 824-8766 (661) 257-6060
Fax: (800) TAITFAX (800) 824-8329 (661) 257-6415
Email: [email protected]
Http://www.taitroncomponents.com
TAITRON COMPONENTS MEXICO, S.A .DE C.V.
BOULEVARD CENTRAL 5000 INTERIOR 5 PARQUE INDUSTRIAL ATITALAQUIA, HIDALGO C.P.
42970 MEXICO
Tel: +52-55-5560-1519
Fax: +52-55-5560-2190
TAITRON COMPONETS INCORPORATED E REPRESENTAÇÕES DO BRASIL LTDA
RUA DOMINGOS DE MORAIS, 2777, 2.ANDAR, SALA 24 SAÚDE - SÃO PAULO-SP 04035-001 BRAZIL
Tel: +55-11-5574-7949
Fax: +55-11-5572-0052
TAITRON COMPONETS INCORPORATED, SHANGHAI REPRESENTATIVE OFFICE
METROBANK PLAZA, 1160 WEST YAN’ AN ROAD, SUITE 1503, SHANGHAI, 200052, CHINA
Tel: +86-21-5424-9942
Fax: +86-21-5424-9931
Rev. A/LX
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Page 10 of 10