LM217, LM317
TO-220
TO-220FP
D²PAK
1.2 V to 37 V adjustable voltage regulators
Datasheet - production data
Description
The LM217, LM317 are monolithic integrated
circuits in TO-220, TO-220FP and D²PAK
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.
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 ser ies of protecti ons: current limit ing,
thermal shutdown and SOA control
Table 1. Device summary
Order codes
TO-220 (single gauge) TO-220 (double gauge) D²PAK (tape and reel) TO-220FP
LM217T LM217T-DG LM217D2T-TR
LM317T LM317T-DG LM317D2T-TR LM317P
LM317BT
March 2014 DocID2154 Rev 19 1/25
This is information on a product in full production.
www.st.com
Contents LM217, LM317
Contents
1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
8 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
9 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2/25 DocID2154 Rev 19
LM217, LM317 Pin configuration
72)3
72
'ð3$.
1 Pin configuration
Figure 1. Pin connections (top view)
DocID2154 Rev 19 3/25
25
Maximum ratings LM217, LM317
2 Maximum ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
- VOInput-reference differential voltage 40 V
V
I
I
Output current Internally limited A
O
LM217 - 25 to 150
°C
T
OP
Operating junction temperature for:
LM317 0 to 125
LM317B -40 to 125
T
P
STG
Power dissipation Internally limited
D
Storage temperature - 65 to 150 °C
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these condition is not implied.
Table 3. Thermal data
Symbol Parameter D²PAK TO-220 TO-220FP Unit
R
R
thJC
thJA
Thermal resistance junction-case 3 5 5 °C/W
Thermal resistance junction-ambient 62.5 50 60 °C/W
4/25 DocID2154 Rev 19
LM217, LM317 Diagram
3 Diagram
Figure 2. Schematic diagram
DocID2154 Rev 19 5/25
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Electrical characteristics LM217, LM317
4 Electrical characteristics
VI - VO = 5 V, IO = 500 mA, I
= 1.5 A and P
MAX
= 20 W, TJ = - 55 to 150 °C, unless
MAX
otherwise specified.
Symbol Parameter Test conditions Min. Typ. Max. Unit
ΔV
ΔV
I
ΔI
V
ΔV
I
O(min)
I
O(max)
Line regulation VI - VO = 3 to 40 V
O
Load regulation
O
Adjustment pin current 50 100 µA
ADJ
Adjustment pin current VI - VO = 2.5 to 40V IO = 10 mA to I
ADJ
Reference voltage
REF
Output voltage
O/VO
temperature stabil ity
Minimum load curre nt VI - VO = 40 V 3.5 5 mA
Maximum load current
Output noise voltage
eN
(percentage of V
SVR Supply voltage rejection
1. C
is connected between adjust pin and ground.
ADJ
Table 4. Electrical characteristics for LM217
T
= 25°C 0.01 0.02
J
≤5 V
V
O
I
= 10 mA to I
O
≥5 V,
V
O
= 10 mA to I
I
O
- VO = 2.5 to 40V IO= 10 mA to I
V
I
PD ≤ P
MAX
V
- VO ≤ 15 V, PD < P
I
- VO = 40 V, PD < P
V
I
)
O
B = 10Hz to 100kHz, T
(1)
TJ = 25°C, f = 120Hz
MAX
MAX
TJ = 25°C 5 15
TJ = 25°C 0.1 0.3
MAX
, TJ = 25°C 0.4
MAX
= 25°C 0.003 %
J
C
=0 65
ADJ
=10µF 66 80
C
ADJ
MAX
MAX
0.02 0.05
%/V
20 50
0.3 1
0.2 5 µA
1.2 1.25 1.3 V
1%
1.5 2.2
mV
%
A
dB
6/25 DocID2154 Rev 19
LM217, LM317 Electrical characteristics
VI - VO = 5 V, IO = 500 mA, I
= 1.5 A and P
MAX
= 20 W, TJ = 0 to 125 °C, unless
MAX
otherwise specified.
Symbol Parameter Test conditions Min. Typ. Max. Unit
ΔV
ΔV
I
ΔI
V
ΔV
I
O(min)
I
O(max)
Line regulation VI - VO = 3 to 40 V
O
Load regulation
O
Adjustment pin current 50 100 µA
ADJ
Adjustment pin current
ADJ
Reference voltage
REF
(between pin 3 and pin 1)
Output voltage
O/VO
temperature stabil ity
Minimum load curre nt VI - VO = 40 V 3.5 10 mA
Maximum load current
Output noise voltage
eN
(percentage of V
SVR Supply voltage rejection
1. C
is connected between adjust pin and ground.
ADJ
Table 5. Electrical characteristics for LM317
T
= 25°C 0.01 0.04
J
V
≤ 5 V
O
= 10 mA to I
I
O
≥5 V,
V
O
I
= 10 mA to I
O
MAX
MAX
VI - VO = 2.5 to 40V,
I
= 10 mA to 500mA
O
VI - VO = 2.5 to 40V IO = 10 mA to 500mA
≤ P
P
D
MAX
V
- VO ≤ 15 V, PD < P
I
- VO = 40 V, PD < P
V
I
)
O
B = 10Hz to 100kHz, TJ = 25°C 0.003 %
(1)
TJ = 25°C, f = 120Hz
TJ = 25°C 5 25
TJ = 25°C 0.1 0.5
MAX
, TJ = 25°C 0.4
MAX
C
=0 65
ADJ
=10µF 66 80
C
ADJ
0.02 0.07
%/V
20 70
0.3 1.5
0.2 5 µA
1.2 1.25 1.3 V
1%
1.5 2.2
mV
%
A
dB
DocID2154 Rev 19 7/25
25
Electrical characteristics LM217, LM317
VI - VO = 5 V, IO = 500 mA, I
= 1.5 A and P
MAX
= 20 W, TJ = - 40 to 125 °C, unless
MAX
otherwise specified.
Symbol Parameter Test conditions Min. Typ. Max. Unit
ΔV
ΔV
I
ΔI
V
ΔV
I
O(min)
I
O(max)
Line regulation VI - VO = 3 to 40 V
O
Load regulation
O
Adjustment pin current 50 100 µA
ADJ
Adjustment pin current
ADJ
Reference voltage
REF
(between pin 3 and pin 1)
Output voltage
O/VO
temperature stability
Minimum load cu rrent VI - VO = 40 V 3.5 10 mA
Maximum load current
Output noise voltage
eN
(percentage of V
SVR Suppl y vol tage rejection
1. C
is connected between adjust pin and ground.
ADJ
T able 6. Electrical characteristics for LM317B
T
= 25°C 0.01 0.04
J
V
≤ 5 V
O
= 10 mA to I
I
O
≥5 V,
V
O
I
= 10 mA to I
O
MAX
MAX
VI - VO = 2.5 to 40V,
I
= 10 mA to 500mA
O
VI - VO = 2.5 to 40V IO = 10 mA to 500mA
≤ P
P
D
MAX
V
- VO ≤ 15 V, PD < P
I
- VO = 40 V, PD < P
V
I
)
O
B = 10Hz to 100kHz, TJ = 25°C 0.003 %
(1)
TJ = 25°C, f = 120Hz
TJ = 25°C 5 25
TJ = 25°C 0.1 0.5
MAX
, TJ = 25°C 0.4
MAX
C
=0 65
ADJ
=10µF 66 80
C
ADJ
0.02 0.07
%/V
20 70
0.3 1.5
0.25µA
1.2 1.25 1.3 V
1%
1.5 2.2
mV
%
A
dB
8/25 DocID2154 Rev 19
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