TI LM317MDCYG3 3-terminal adjustable regulator Datasheet

LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
FEATURES
•
•
•
•
Output Voltage Range Adjustable From
1.25 V to 37 V
Output Current Greater Than 500 mA
Internal Short-Circuit Current Limiting
Thermal-Overload Protection
Output Safe-Area Compensation
•
Q Devices Meet Automotive Performance
Requirements
Customer-Specific Configuration Control Can
Be Supported for Q Devices Along With
Major-Change Approval
KTP PACKAGE
(TOP VIEW)
DCY PACKAGE
(TOP VIEW)
OUTPUT
KVU (TO-252) PACKAGE
(TOP VIEW)
INPUT
OUTPUT
INPUT
OUTPUT
•
INPUT
OUTPUT
•
ADJUST
OUTPUT
ADJUST
ADJUST
DESCRIPTION/ORDERING INFORMATION
The LM317M is an adjustable 3-terminal positive-voltage regulator capable of supplying more than 500 mA over
an output-voltage range of 1.25 V to 37 V. The LM317M is exceptionally easy to use and requires only two
external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard
fixed regulators.
In addition to having higher performance than fixed regulators, the device includes on-chip current limiting,
thermal-overload protection, and safe-operating-area protection. All overload protection remains fully functional if
the ADJUST terminal is disconnected.
Normally, no capacitors are needed unless the device is more than six inches from the input filter capacitors, in
which case an input bypass capacitor is needed. An optional output capacitor can be added to improve transient
response. The ADJUST terminal can be bypassed to achieve high ripple-rejection ratios, which are difficult to
achieve with standard three-terminal regulators.
ORDERING INFORMATION
PACKAGE (1)
TJ
PowerFLEX™ – KTP
0°C to 125°C
–40°C to 125°C
(1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Reel of 2000
LM317MKTPR
Tube of 80
LM317MDCY
Reel of 2500
LM317MDCYR
TO-252 – KVU
Reel of 2500
LM317MKVURG3
LM317M
PowerFLEX – KTP
Reel of 2000
LM317MQKTPR
317MQ
LM317MQDCYR
L5
LM317MQDCYRG3
L8
SOT – DCY
SOT – DCY
Reel of 2500
LM317M
L4
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerFLEX is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2000–2006, Texas Instruments Incorporated
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
Absolute Maximum Ratings (1)
over operating temperature range (unless otherwise noted)
MIN
VI – VO
Input-to-output differential voltage
TJ
Operating virtual junction temperature
Lead temperature (within 5 mils of the plastic body for 10 s)
Tstg
(1)
MAX
KTP, DCY packages
Storage temperature range
–65
UNIT
40
V
150
°C
260
°C
150
°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Package Thermal Data (1)
(1)
θJC
PACKAGE
BOARD
PowerFLEX (KTP)
High K, JESD 51-5
SOT-223 (DCY)
High K, JESD 51-7
TO-252 (KVU)
High K, JESD 51-5
θJCB
θJA
3°C/W
28°C/W
30.6°C/W
53°C/W
30.3°C/W
Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient
temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.
Recommended Operating Conditions
MIN
MAX
UNIT
VI – VO
Input-to-output voltage differential
37
V
IO
Output current
0.5
A
TJ
No suffix
Operating virtual junction temperature
Q suffix
0
125
–40
125
°C
Electrical Characteristics
over recommended operating virtual-junction temperature range, VI – VO = 5 V, IO = 0.1 A (unless otherwise noted)
TEST CONDITIONS (1)
PARAMETER
Line regulation (2)
VI – VO = 3 V to 40 V
Load regulation
IO = 10 mA to 500 mA
MIN
TYP
MAX
TJ = 25°C
0.01
0.04
Full temperature range
0.02
0.07
TJ = 25°C
0.1
0.5
Full temperature range
0.3
1.5
50
100
µA
0.2
5
µA
1.25
1.3
V
ADJUST terminal current
Change in ADJUST terminal current
VI – VO = 3 V to 40 V,
IO = 10 mA to 500 mA
Reference voltage
VI – VO = 3 V to 40 V,
IO = 10 mA to 500 mA
Output-voltage temperature stability
0.7
Minimum load current
to maintain regulation
3.5
Maximum output current
RMS output noise voltage (% of VO)
VI – VO ≤ 15 V
VI – VO = 40 V, PD ≤ PD(max),
TJ = 25°C
f = 10 Hz to 10 kHz,
TJ = 25°C
Ripple rejection
VO = 10 V, f = 120 Hz,
TJ = 25°C
Long-term stability
TJ = 25°C
(1)
(2)
(3)
2
1.2
CADJ =
500
900
150
250
0.003
0 (3)
CADJ = 10 µF (3)
65
66
80
0.3
Pulse-testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible.
Line voltage regulation is expressed here as the percentage change in output voltage per 1-V change at the input.
CADJ is connected between the ADJUST terminal and ground.
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UNIT
%/V
%VO
%
10
mA
mA
%VO
dB
1 %/1k hrs
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
TYPICAL CHARACTERISTICS
LINE REGULATION
vs
TEMPERATURE
LOAD REGULATION
vs
TEMPERATURE
1.00
0.15
∆VO − Output Voltage Change − %
∆VO − Output Voltage Change − %
0.90
0.20
VI = 4.25 V to 41.25 V
VO = Vref
IL = 10 mA
0.80
0.70
0.60
0.50
0.40
0.30
0.20
0.10
0
VI = 45 V
VO = 5 V
IL = 10 mA to 100 mA
0.10
0.05
0.00
−0.05
−0.10
−0.15
VI = 10 V
VO = 5 V
IL = 10 mA to 40 mA
−0.20
−0.25
−0.30
−0.35
0
25
50
75
100
−0.40
125
0
25
TJ − Temperature − °C
100
Figure 2.
ADJUST TERMINAL CURRENT
vs
TEMPERATURE
TEMPERATURE STABILITY
vs
TEMPERATURE
125
1.260
VI = 6.25 V
VO = Vref
1.255
VI = 4.25 V
VO = Vref
IL = 10 mA
51
IL = 100 mA
V ref − Reference Voltage − V
ADJUST Terminal Current − µA
75
Figure 1.
55
53
50
TJ − Temperature − °C
49
IL = 10 mA
47
45
43
41
39
1.245
1.240
1.235
1.230
1.225
37
35
1.250
0
25
50
75
100
125
1.220
TJ − Temperature − °C
0
25
50
75
100
125
TJ − Temperature − °C
Figure 3.
Figure 4.
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3
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
TYPICAL CHARACTERISTICS (continued)
MINIMUM OPERATING CURRENT
vs
INPUT-OUTPUT DIFFERENTIAL VOLTAGE
OUTPUT CURRENT LIMIT
vs
INPUT-OUTPUT DIFFERENTIAL VOLTAGE
8
1.00
TJ = 125°C
6
TJ = 25°C
IO – Output Current – A
Minimum Operating Current − mA
7
5
TJ = 25°C
4
3
2
0.80
0.60
TJ = 125°C
0.40
0.20
1
0.00
0
0
5
10
15
20
25
30
35
0
40
15
20
25
Figure 5.
Figure 6.
OUTPUT NOISE VOLTAGE
vs
TEMPERATURE
RIPPLE REJECTION
vs
TEMPERATURE
0.004
30
35
40
90
VI = 15 Vdc and 1 VPP (120 Hz)
VO = 10 V
IL = 100 mA
CL = 1 µF
Ci = 0.1 µF
85
80
0.003
Ripple Rejection − dB
Ouput Noise Voltage − % VO
10
VI – VO – Input-Output Differential – V
VI − VO − Input-Output Differential − V
0.002
0.001
75
CADJ = 10 µF
70
65
60
CADJ = 0 µF
55
VI = 15 V
VO = 10 V
IL = 50 mA
Bandwidth = 10 Hz to 10 kHz
50
45
0.000
0
25
50
75
100
125
0
TJ − Temperature − °C
25
70
TJ − Temperature − °C
Figure 7.
4
5
Figure 8.
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85
125
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
TYPICAL CHARACTERISTICS (continued)
RIPPLE REJECTION
vs
FREQUENCY
INPUT-OUTPUT VOLTAGE DIFFERENTIAL
vs
TEMPERATURE
2.5
(VI − V O ) − Input-Output Voltage Differential − V
100
90
80
70
60
50
CADJ = 0 µF
40
30
20
10
VI = 15 Vdc and Vac = 1 VPP
VO = 10 V
IL = 100 mA
CL = 1 µF
Ci = 0.1 µF
0
10 Hz
100 Hz
1 kHz
2
IL = 500 mA
1.5
IL = 100 mA
1
0.5
0
10 kHz
0
100 kHz
25
50
75
100
125
TJ − Temperature − °C
Frequency
Figure 9.
Figure 10.
OUTPUT IMPEDANCE
vs
FREQUENCY
10.00
VI = 15 V
VO = 10 V
IL = 100-mA dc and 10-mA RMS
CADJ = 0 µF
Output Impedance − Ω
Ripple Rejection − dB
CADJ = 10 µF
1.00
CADJ = 10 µF
0.10
0.01
10 Hz
50 Hz
100 Hz
500 Hz
1 kHz
5 kHz
10 kHz
50 kHz
100 kHz
150 kHz
Frequency
Figure 11.
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5
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
TYPICAL CHARACTERISTICS (continued)
∆V O − Output Voltage Change − V
LINE TRANSIENT RESPONSE
vs
TIME
1
0.8
0.6
0.4
0.2
0
VO = 10 V
VI = 15 V, ∆VI = +1 V
IL = 50 mA
TJ = 25°C
CL = 0 µF
CADJ = 0 µF
−0.2
−0.4
−0.6
−0.8
∆V I − Input Voltage Change − V
−1
1.2
1
0.8
0.6
0.4
0.2
0
−1.0
−0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Time − µs
Figure 12.
∆V O − Output Voltage Change − V
LOAD TRANSIENT RESPONSE
vs
TIME
5.0
4.0
3.0
2.0
VI = 15 V
VO = 10 V
IL = 50 mA
∆IL = +500 mA
CL = 1 µF
CADJ = 10 µF
1.0
0
−1.0
−2.0
CL = 0 µF
CADJ = 0 µF
∆ I O − Output Current Change − A
−3.0
−4.0
0.6
0.5
0.4
0.3
0.2
0.1
0
−0.1
−0.2
−10
−5
0
5
10
15
20
Time − µs
Figure 13.
6
Submit Documentation Feedback
25
30
35
LM317M
3-TERMINAL ADJUSTABLE REGULATOR
www.ti.com
SLVS297O – APRIL 2000 – REVISED JULY 2006
APPLICATION INFORMATION
D1 (Note E)
1N4002
VI
Input
Output
LM317M
R1
240 Ω
Adjust
Ci (Note A)
0.1 µF
VO (Note C)
Vref = 1.25 V
IAdj
D2 (Note E)
1N4002
CO (Note B)
1.0 µF
CADJ (Note D)
R2
NOTES: A. Ci is not required, but is recommended, particularly if the regulator is not in close proximity
to the power-supply filter capacitors. A 0.1-µF disc or 1-µF tantalum provides sufficient
bypassing for most applications, especially when adjustment and output capacitors are used.
B. CO improves transient response, but is not needed for stability.
C. VO is calculated as shown:
ǒ
VO + V ref 1 )
R2
R1
Ǔ ) (I
Adj
R 2)
Because IAdj typically is 50 µA, it is negligible in most applications.
D. CADJ is used to improve ripple rejection; it prevents amplification of the ripple as the output voltage
is adjusted higher. If CADJ is used, it is best to include protection diodes.
E. If the input is shorted to ground during a fault condition, protection diodes provide measures to
prevent the possiblility of external capacitors discharging through low-impedance paths in the IC. By
providing low-impedance discharge paths for CO and CADJ, respectively, D1 and D2 prevent the
capacitors from discharging into the output of the regulator.
Figure 14. Adjustable Voltage Regulator
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7
PACKAGE OPTION ADDENDUM
www.ti.com
19-Dec-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
LM317MDCY
ACTIVE
SOT-223
DCY
4
80
Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1YEAR
LM317MDCYG3
ACTIVE
SOT-223
DCY
4
80
Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1YEAR
LM317MDCYR
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1YEAR
LM317MDCYRG3
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-2-260C-1YEAR
LM317MKTPR
NRND
PFM
KTP
2
3000
CU SN
Level-1-220C-UNLIM
LM317MKTPRG3
NRND
PFM
KTP
2
3000 Green (RoHS &
no Sb/Br)
CU SN
Level-1-260C-UNLIM
LM317MKVURG3
ACTIVE
PFM
KVU
3
2500 Green (RoHS &
no Sb/Br)
CU SN
Level-3-260C-168 HR
TBD
LM317MQDCYR
ACTIVE
SOT-223
DCY
4
2500
LM317MQDCYRG3
ACTIVE
SOT-223
DCY
4
2500 Green (RoHS &
no Sb/Br)
TBD
LM317MQKTPR
OBSOLETE
PFM
KTP
2
TBD
Lead/Ball Finish
MSL Peak Temp (3)
SNPB
Level-2-235C-1 YEAR
CU SN
Level-2-260C-1 YEAR
Call TI
Call TI
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
Addendum-Page 1
MECHANICAL DATA
MPDS094A – APRIL 2001 – REVISED JUNE 2002
DCY (R-PDSO-G4)
PLASTIC SMALL-OUTLINE
6,70 (0.264)
6,30 (0.248)
3,10 (0.122)
2,90 (0.114)
4
0,10 (0.004) M
3,70 (0.146)
3,30 (0.130)
7,30 (0.287)
6,70 (0.264)
Gauge Plane
1
2
0,84 (0.033)
0,66 (0.026)
2,30 (0.091)
4,60 (0.181)
1,80 (0.071) MAX
3
0°–10°
0,10 (0.004) M
0,25 (0.010)
0,75 (0.030) MIN
1,70 (0.067)
1,50 (0.059)
0,35 (0.014)
0,23 (0.009)
Seating Plane
0,08 (0.003)
0,10 (0.0040)
0,02 (0.0008)
4202506/B 06/2002
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters (inches).
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion.
Falls within JEDEC TO-261 Variation AA.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MECHANICAL DATA
MPSF001F – JANUARY 1996 – REVISED JANUARY 2002
KTP (R-PSFM-G2)
PowerFLEX PLASTIC FLANGE-MOUNT PACKAGE
0.080 (2,03)
0.070 (1,78)
0.243 (6,17)
0.233 (5,91)
0.228 (5,79)
0.218 (5,54)
0.050 (1,27)
0.040 (1,02)
0.010 (0,25) NOM
0.130 (3,30) NOM
0.215 (5,46)
NOM
0.247 (6,27)
0.237 (6,02)
Thermal Tab
(See Note C)
0.287 (7,29)
0.277 (7,03)
0.381 (9,68)
0.371 (9,42)
0.100 (2,54)
0.090 (2,29)
0.032 (0,81) MAX
Seating Plane
0.090 (2,29)
0.180 (4,57)
0.004 (0,10)
0.005 (0,13)
0.001 (0,02)
0.031 (0,79)
0.025 (0,63)
0.010 (0,25) M
0.010 (0,25) NOM
Gage Plane
0.047 (1,19)
0.037 (0,94)
0.010 (0,25)
2°–ā6°
4073388/M 01/02
NOTES: A.
B.
C.
D.
E.
All linear dimensions are in inches (millimeters).
This drawing is subject to change without notice.
The center lead is in electrical contact with the thermal tab.
Dimensions do not include mold protrusions, not to exceed 0.006 (0,15).
Falls within JEDEC TO-252 variation AC.
PowerFLEX is a trademark of Texas Instruments.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
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