This is information on a product in full production.
March 2014
DocID2154 Rev 19
1/25
LM217, LM317
1.2 V to 37 V adjustable voltage regulators
Datasheet
-
production data
Features
Output voltage range: 1.2 to 37 V
Output current in excess of 1.5 A
0.1 % line and load regulation
Floating operation for high voltages
Complete series of protections: current limiting, thermal shutdown and SOA control
Description
The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP and D PAK packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators.
TO-220
TO-220FP
D PAK
Table 1. Device summary
Order codes
TO-220 (single gauge)
TO-220 (double gauge)
D PAK (tape and reel)
TO-220FP
LM217T
LM217T-DG
LM217D2T-TR
LM317T
LM317T-DG
LM317D2T-TR
LM317P
LM317BT
Contents
LM217, LM317
2/25
DocID2154 Rev 19
Contents
DocID2154 Rev 19
3/25
LM217, LM317
Pin configuration
25
1
Pin configuration
Figure 1. Pin connections (top view)
72)3
72
'ð3$.
Maximum ratings
LM217, LM317
4/25
DocID2154 Rev 19
2 Maximum
ratings
Note:
Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
V
I
- V
O
Input-reference differential voltage
40
V
I
O
Output current
Internally limited
A
T
OP
Operating junction temperature for:
LM217
- 25 to 150
C
LM317
0 to 125
LM317B
-40 to 125
P
D
Power dissipation
Internally limited
T
STG
Storage temperature
- 65 to 150
C
Table 3. Thermal data
Symbol
Parameter
D PAK
TO-220
TO-220FP
Unit
R
thJC
Thermal resistance junction-case
3
5
5
C/W
R
thJA
Thermal resistance junction-ambient
62.5
50
60
C/W
DocID2154 Rev 19
5/25
LM217, LM317
Diagram
25
3 Diagram
Figure 2. Schematic diagram
Electrical characteristics
LM217, LM317
6/25
DocID2154 Rev 19
4 Electrical
characteristics
V
I
- V
O
= 5 V, I
O
= 500 mA, I
MAX
= 1.5 A and P
MAX
= 20 W, T
J
= - 55 to 150 C, unless
otherwise specified.
Table 4. Electrical characteristics for LM217
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Δ
V
O
Line regulation
V
I
- V
O
= 3 to 40 V
T
J
= 25 C
0.01
0.02
%/V
0.02
0.05
Δ
V
O
Load regulation
V
O
≤
5 V
I
O
= 10 mA to I
MAX
T
J
= 25 C
5
15
mV
20
50
V
O
≥
5 V,
I
O
= 10 mA to I
MAX
T
J
= 25 C
0.1
0.3
%
0.3
1
I
ADJ
Adjustment pin current
50
100
A
Δ
I
ADJ
Adjustment pin current
V
I
- V
O
= 2.5 to 40V I
O
= 10 mA to I
MAX
0.2
5
A
V
REF
Reference voltage
V
I
- V
O
= 2.5 to 40V I
O
= 10 mA to I
MAX
P
D
≤
P
MAX
1.2
1.25
1.3
V
Δ
V
O
/V
O
Output voltage temperature stability
1
%
I
O(min)
Minimum load current
V
I
- V
O
= 40 V
3.5
5
mA
I
O(max)
Maximum load current
V
I
- V
O
≤
15 V, P
D
<
P
MAX
1.5
2.2
A
V
I
- V
O
= 40 V, P
D
<
P
MAX
, T
J
= 25 C
0.4
eN
Output noise voltage (percentage of V
O
)
B = 10Hz to 100kHz, T
J
= 25 C
0.003
%
SVR
Supply voltage rejection
(1)
T
J
= 25 C, f = 120Hz
C
ADJ
=0
65
dB
C
ADJ
=10 F
66
80
1.
C
ADJ
is connected between adjust pin and ground.
DocID2154 Rev 19
7/25
LM217, LM317
Electrical characteristics
25
V
I
- V
O
= 5 V, I
O
= 500 mA, I
MAX
= 1.5 A and P
MAX
= 20 W, T
J
= 0 to 125 C, unless
otherwise specified.
Table 5. Electrical characteristics for LM317
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Δ
V
O
Line regulation
V
I
- V
O
= 3 to 40 V
T
J
= 25 C
0.01
0.04
%/V
0.02
0.07
Δ
V
O
Load regulation
V
O
≤
5 V
I
O
= 10 mA to I
MAX
T
J
= 25 C
5
25
mV
20
70
V
O
≥
5 V,
I
O
= 10 mA to I
MAX
T
J
= 25 C
0.1
0.5
%
0.3
1.5
I
ADJ
Adjustment pin current
50
100
A
Δ
I
ADJ
Adjustment pin current
V
I
- V
O
= 2.5 to 40V,
I
O
= 10 mA to 500mA
0.2
5
A
V
REF
Reference voltage (between pin 3 and pin 1)
V
I
- V
O
= 2.5 to 40V I
O
= 10 mA to 500mA
P
D
≤
P
MAX
1.2
1.25
1.3
V
Δ
V
O
/V
O
Output voltage temperature stability
1
%
I
O(min)
Minimum load current
V
I
- V
O
= 40 V
3.5
10
mA
I
O(max)
Maximum load current
V
I
- V
O
≤
15 V, P
D
<
P
MAX
1.5
2.2
A
V
I
- V
O
= 40 V, P
D
<
P
MAX
, T
J
= 25 C
0.4
eN
Output noise voltage (percentage of V
O
)
B = 10Hz to 100kHz, T
J
= 25 C
0.003
%
SVR
Supply voltage rejection
(1)
T
J
= 25 C, f = 120Hz
C
ADJ
=0
65
dB
C
ADJ
=10 F
66
80
1.
C
ADJ
is connected between adjust pin and ground.
Electrical characteristics
LM217, LM317
8/25
DocID2154 Rev 19
V
I
- V
O
= 5 V, I
O
= 500 mA, I
MAX
= 1.5 A and P
MAX
= 20 W, T
J
= - 40 to 125 C, unless
otherwise specified.
Table 6. Electrical characteristics for LM317B
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Δ
V
O
Line regulation
V
I
- V
O
= 3 to 40 V
T
J
= 25 C
0.01
0.04
%/V
0.02
0.07
Δ
V
O
Load regulation
V
O
≤
5 V
I
O
= 10 mA to I
MAX
T
J
= 25 C
5
25
mV
20
70
V
O
≥
5 V,
I
O
= 10 mA to I
MAX
T
J
= 25 C
0.1
0.5
%
0.3
1.5
I
ADJ
Adjustment pin current
50
100
A
Δ
I
ADJ
Adjustment pin current
V
I
- V
O
= 2.5 to 40V,
I
O
= 10 mA to 500mA
0.2
5
A
V
REF
Reference voltage (between pin 3 and pin 1)
V
I
- V
O
= 2.5 to 40V I
O
= 10 mA to 500mA
P
D
≤
P
MAX
1.2
1.25
1.3
V
Δ
V
O
/V
O
Output voltage temperature stability
1
%
I
O(min)
Minimum load current
V
I
- V
O
= 40 V
3.5
10
mA
I
O(max)
Maximum load current
V
I
- V
O
≤
15 V, P
D
<
P
MAX
1.5
2.2
A
V
I
- V
O
= 40 V, P
D
<
P
MAX
, T
J
= 25 C
0.4
eN
Output noise voltage (percentage of V
O
)
B = 10Hz to 100kHz, T
J
= 25 C
0.003
%
SVR
Supply voltage rejection
(1)
T
J
= 25 C, f = 120Hz
C
ADJ
=0
65
dB
C
ADJ
=10 F
66
80
1.
C
ADJ
is connected between adjust pin and ground.
DocID2154 Rev 19
9/25
LM217, LM317
Typical characteristics
25
5 Typical
characteristics
Figure 3. Output current vs. input-output
differential voltage
Figure 4. Dropout voltage vs. junction
temperature
Figure 5. Reference voltage vs. junction
Figure 6. Basic adjustable regulator
,QSXW
,QSXW
2XWSXW
2XWSXW
$GM
$GM
Application information
LM217, LM317
10/25
DocID2154 Rev 19
6 Application
information
The LM217, LM317 provides an internal reference voltage of 1.25 V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see
), giving an output voltage V
O
of:
V
O
= V
REF
(1 + R
2
/R
1
) + I
ADJ
R
2
The device was designed to minimize the term I
ADJ
(100 A max) and to maintain it very
constant with line and load changes. Usually, the error term I
ADJ
× R
2
can be neglected. To
obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is insufficient, the output voltage will rise. Since the LM217, LM317 is a floating regulator and "sees" only the input-to- output differential voltage, supplies of very high voltage with respect to ground can be regulated as long as the maximum input-to-output differential is not exceeded. Furthermore, programmable regulators are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. In order to optimize the load regulation, the current set resistor R
1
(see
) should be tied as
close as possible to the regulator, while the ground terminal of R
2
should be near the ground
of the load to provide remote ground sensing. Performance may be improved with added capacitance as follow:
An input bypass capacitor of 0.1 F
An adjustment terminal to ground 10 F capacitor to improve the ripple rejection of about 15 dB (C
ADJ
).
An 1 F tantalum (or 25 F Aluminium electrolytic) capacitor on the output to improve transient response. In addition to external capacitors, it is good practice to add protection diodes, as shown in
D1 protect the device against input short
circuit, while D2 protect against output short circuit for capacitance discharging.
Note:
D1 protect the device against input short circuit, while D2 protects against output short circuit for capacitors discharging.
Figure 7. Voltage regulator with protection diodes
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
DocID2154 Rev 19
11/25
LM217, LM317
Application information
25
I
O
= (V
REF
/ R
1
) + I
ADJ
= 1.25 V / R
1
Figure 8. Slow turn-on 15 V regulator
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
Figure 9. Current regulator
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
Figure 10. 5 V electronic shut-down regulator
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
Application information
LM217, LM317
12/25
DocID2154 Rev 19
(R
2
sets maximum V
O
)
* R
S
sets output impedance of charger Z
O
= R
S
(1 + R
2
/R
1
). Use of R
S
allows low charging rates whit fully
charged battery.
Figure 11. Digitally selected outputs
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
Figure 12. Battery charger (12 V)
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
DocID2154 Rev 19
13/25
LM217, LM317
Application information
25
* R3 sets peak current (0.6 A for 1 0).
** C1 recommended to filter out input transients.
Figure 13. Current limited 6 V charger
**OQVU
OQVU
0VUQVU
VUQVU
"EKVTU
EKVTU
Package mechanical data
LM217, LM317
14/25
DocID2154 Rev 19
7
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK
packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at:
ECOPACK
is an ST trademark.
Figure 14. TO-220 (single gauge) drawing
BUHY'
DocID2154 Rev 19
15/25
LM217, LM317
Package mechanical data
25
Table 7. TO-220 (single gauge) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
E
10
10.40
e
2.40
2.70
e1
4.95
5.15
F
0.51
0.60
H1
6.20
6.60
J1
2.40
2.72
L
13
14
L1
3.50
3.93
L20
16.40
L30
28.90
P
3.75
3.85
Q
2.65
2.95
Package mechanical data
LM217, LM317
16/25
DocID2154 Rev 19
Figure 15. TO-220 (dual gauge) drawing
BW\SH$B5HYB7
DocID2154 Rev 19
17/25
LM217, LM317
Package mechanical data
25
Table 8. TO-220 (dual gauge) mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
b
0.61
0.88
b1
1.14
1.70
c
0.48
0.70
D
15.25
15.75
D1
1.27
E
10
10.40
e
2.40
2.70
e1
4.95
5.15
F
1.23
1.32
H1
6.20
6.60
J1
2.40
2.72
L
13
14
L1
3.50
3.93
L20
16.40
L30
28.90
P
3.75
3.85
Q
2.65
2.95
Package mechanical data
LM217, LM317
18/25
DocID2154 Rev 19
Figure 16. TO-220FP drawing
7012510_Rev_K
A
B
H
Dia
L7
D
E
L6
L5
L2
L3
L4
F1
F2
F
G
G1
DocID2154 Rev 19
19/25
LM217, LM317
Package mechanical data
25
Table 9. TO-220FP mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.4
4.6
B
2.5
2.7
D
2.5
2.75
E
0.45
0.7
F
0.75
1
F1
1.15
1.70
F2
1.15
1.70
G
4.95
5.2
G1
2.4
2.7
H
10
10.4
L2
16
L3
28.6
30.6
L4
9.8
10.6
L5
2.9
3.6
L6
15.9
16.4
L7
9
9.3
Dia
3
3.2
Package mechanical data
LM217, LM317
20/25
DocID2154 Rev 19
Figure 17. D PAK drawing
0079457_T
DocID2154 Rev 19
21/25
LM217, LM317
Package mechanical data
25
Table 10. D PAK mechanical data
Dim.
mm
Min.
Typ.
Max.
A
4.40
4.60
A1
0.03
0.23
b
0.70
0.93
b2
1.14
1.70
c
0.45
0.60
c2
1.23
1.36
D
8.95
9.35
D1
7.50
E
10
10.40
E1
8.50
e
2.54
e1
4.88
5.28
H
15
15.85
J1
2.49
2.69
L
2.29
2.79
L1
1.27
1.40
L2
1.30
1.75
R
0.4
V2
0
8
Packaging mechanical data
LM217, LM317
22/25
DocID2154 Rev 19
8
Packaging mechanical data
Figure 18. Tape for D PAK
P1
A0
D1
P0
F
W
E
D
B0
K0
T
User direction of feed
P2
10 pitches cumulative tolerance on tape +/- 0.2 mm
User direction of feed
R
Bending radius
B1
For machine ref. only including draft and radii concentric around B0
AM08852v1
Top cover tape
DocID2154 Rev 19
23/25
LM217, LM317
Packaging mechanical data
25
Figure 19. Reel for D PAK
Table 11. D PAK tape and reel mechanical data
Tape
Reel
Dim.
mm
Dim.
mm
Min.
Max.
Min.
Max.
A0
10.5
10.7
A
330
B0
15.7
15.9
B
1.5
D
1.5
1.6
C
12.8
13.2
D1
1.59
1.61
D
20.2
E
1.65
1.85
G
24.4
26.4
F
11.4
11.6
N
100
K0
4.8
5.0
T
30.4
P0
3.9
4.1
P1
11.9
12.1
Base qty
1000
P2
1.9
2.1
Bulk qty
1000
R
50
T
0.25
0.35
W
23.7
24.3
A
D
B
Full radius
G measured at hub
C
N
REEL DIMENSIONS
40mm min.
Access hole
At sl ot location
T
Tape slot in core for tape start 25 mm min. width
AM08851v2
Revision history
LM217, LM317
24/25
DocID2154 Rev 19
9
Revision history
Table 12. Document revision history
Date
Revision
Changes
01-Sep-2004
10
Mistake V
REF
==> V
O
, tables 1, 4 and 5.
19-Jan-2007
11
D PAK mechanical data has been updated, add footprint data and the document has been reformatted.
13-Jun-2007
12
Change values
Δ
I
ADJ
and V
REF
test condition of I
O
= 10 mA to I
MAX
==>
I
O
= 10 mA to 500 mA
.
23-Nov-2007
13
Added
06-Feb-2008
14
Added: TO-220 mechanical data
Figure 14 on page 14
and
Table 6 on
page 13
.
02-Mar-2010
15
Added: notes
Figure 14 on page 14
,
Figure 15 on page 15
,
Figure 16
and
Figure 17 on page 16
.
17-Nov-2010
16
Modified: R
thJC
value for TO-220
.
18-Nov-2011
17
Added: order code LM317T-DG
.
13-Feb-2012
18
Added: order code LM217T-DG
.
12-Mar-2014
19
The part number LM117 has been moved to a separate datasheet.
Removed TO-3 package.
Updated the description in cover page
Modified
,
,
,
,
.
Added
.
Minor text changes.
DocID2154 Rev 19
25/25
LM217, LM317
25
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (ST) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice.
All ST products are sold pursuant to STs terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN STS TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
ST PRODUCTS ARE NOT DESIGNED OR AUTHORIZED FOR USE IN: (A) SAFETY CRITICAL APPLICATIONS SUCH AS LIFE SUPPORTING, ACTIVE IMPLANTED DEVICES OR SYSTEMS WITH PRODUCT FUNCTIONAL SAFETY REQUIREMENTS; (B) AERONAUTIC APPLICATIONS; (C) AUTOMOTIVE APPLICATIONS OR ENVIRONMENTS, AND/OR (D) AEROSPACE APPLICATIONS OR ENVIRONMENTS. WHERE ST PRODUCTS ARE NOT DESIGNED FOR SUCH USE, THE PURCHASER SHALL USE PRODUCTS AT PURCHASERS SOLE RISK, EVEN IF ST HAS BEEN INFORMED IN WRITING OF SUCH USAGE, UNLESS A PRODUCT IS EXPRESSLY DESIGNATED BY ST AS BEING INTENDED FOR AUTOMOTIVE, AUTOMOTIVE SAFETY OR MEDICAL INDUSTRY DOMAINS ACCORDING TO ST PRODUCT DESIGN SPECIFICATIONS. PRODUCTS FORMALLY ESCC, QML OR JAN QUALIFIED ARE DEEMED SUITABLE FOR USE IN AEROSPACE BY THE CORRESPONDING GOVERNMENTAL AGENCY.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
2014 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
Document Outline
|