ST LM117, LM217, LM317 User Manual

现货库存、技术资料、百科信息、热点资讯，精彩尽在鼎好!

1.2 V to 37 V adjustable voltage 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 series of protections: current limiting,

thermal shutdown and SOA control

Description

The LM117/LM217/LM317 are monolithic
integrated circuit in TO-220, TO-220FP, TO-3 and

2

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.

LM117/LM217/LM317

TO-220

2

D

PAK

TO-220FP

TO-3

The nominal output voltage is selected by means
of only a resistive divider, making the device
exceptionally easy to use and eliminating the
stocking of many fixed regulators.

Table 1. Device summary

Order codes

TO-220 D

LM217T LM217D2T-TR LM217K

LM317T LM317D2T-TR LM317P LM317K

2

PAK (tape and reel) TO-220FP TO-3

LM117K

February 2008 Rev 14 1/25

www.st.com

25

Contents LM117/LM217/LM317

Contents

1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2/25

LM117/LM217/LM317 Pin configuration

1 Pin configuration

Figure 1. Pin connections (top view)

TO-220

D2PAK (Any Type)

TO-220FP

TO-3

3/25

Maximum ratings LM117/LM217/LM317

2 Maximum ratings

Table 2. Absolute maximum ratings

Symbol Parameter Value Unit

V

- VOInput-reference differential voltage 40

I

I

T

OP

Output current Internally limited

O

LM117 -55 to 150

Operating junction temperature for:

LM317 0 to 125

V

°CLM217 -25 to 150

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 TO-3 Unit

R

R

Thermal resistance junction-case 3 3 5 4 °C/W

thJC

Thermal resistance junction-ambient 62.5 50 60 35 °C/W

thJA

4/25

LM117/LM217/LM317 Diagram

3 Diagram

Figure 2. Schematic diagram

5/25

Electrical characteristics LM117/LM217/LM317

4 Electrical characteristics

Table 4. Electrical characteristics for LM117/LM217 (VI - VO = 5 V, IO = 500 mA, I

= 20 W, TJ = -55 to 150°C for LM117, TJ = -25 to 150 °C for LM217, unless otherwise

P

MAX

= 1.5 A and

MAX

specified)

Symbol Parameter Test conditions Min. Typ. Max. Unit

T

= 25°C 0.01 0.02

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

(between pin 3 and pin 1)

Output voltage

O/VO

temperature stability

Minimum load current VI - VO = 40 V 3.5 5 mA

Maximum load current

Output noise voltage

eN

(percentage of V

O

SVR Supply voltage rejection

1. C

is connected between pin 1 and ground.

ADJ

VO ≤5 V
IO = 10 mA to I

≥5 V,

V

O

= 10 mA to I

I

O

MAX

MAX

VI - VO = 2.5 to 40V IO= 10 mA to I
PD ≤ P

MAX

VI - VO ≤ 15 V, PD < P

- VO = 40 V, PD < P

V

I

)

B = 10Hz to 100kHz, T

(1)

TJ = 25°C, f = 120Hz

MAX

MAX

J

0.02 0.05

TJ = 25°C 5 15

20 50

TJ = 25°C 0.1 0.3

0.3 1

0.2 5 µA

MAX

MAX

1.2 1.25 1.3 V

1%

1.5 2.2

, TJ = 25°C 0.4

= 25°C 0.003 %

J

C

=0 65

ADJ

=10µF 66 80

C

ADJ

%/V

mV

%

A

dB

6/25

LM117/LM217/LM317 Electrical characteristics

Table 5. Electrical characteristics for LM317 (VI - VO = 5 V, IO = 500 mA, I

= 20 W, TJ = 0 to 125°C, unless otherwise specified)

P

MAX

= 1.5 A and

MAX

Symbol Parameter Test conditions Min. Typ. Max. Unit

T

= 25°C 0.01 0.04

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 current VI - VO = 40 V 3.5 10 mA

Maximum load current

Output noise voltage

eN

(percentage of V

O

SVR Supply voltage rejection

1. C

is connected between pin 1 and ground.

ADJ

VO ≤ 5 V
IO = 10 mA to I

≥5 V,

V

O

= 10 mA to I

I

O

- VO = 2.5 to 40V,

V

I

= 10 mA to 500mA

I

O

MAX

MAX

VI - VO = 2.5 to 40V IO = 10 mA to 500mA
PD ≤ P

MAX

VI - VO ≤ 15 V, PD < P

- VO = 40 V, PD < P

V

I

)

B = 10Hz to 100kHz, T

(1)

TJ = 25°C, f = 120Hz

MAX

MAX

J

0.02 0.07

TJ = 25°C 5 25

20 70

TJ = 25°C 0.1 0.5

0.3 1.5

0.2 5 µA

1.21.251.3 V

1%

1.5 2.2

, TJ = 25°C 0.4

= 25°C 0.003 %

J

C

=0 65

ADJ

=10µF 66 80

C

ADJ

%/V

mV

%

A

dB

7/25

Typical characteristics LM117/LM217/LM317

5 Typical characteristics

Figure 3. Output current vs input-output

Figure 5. Reference voltage vs junction

differential voltage

Figure 4. Dropout voltage vs junction

temperature

Figure 6. Basic adjustable regulator

8/25

LM117/LM217/LM317 Application information

6 Application information

The LM117/217/317 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 Figure 3), giving an output voltage V

V

= V

O

The device was designed to minimize the term I

(1 + R2/R1) + I

REF

ADJ R2

(100 µA max) and to maintain it very

ADJ

constant with line and load changes. Usually, the error term I
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 LM117/217317 is a floating regulator and "sees" only the input-to­output 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 regulator 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
close as possible to the regulator, while the ground terminal of R
of the load to provide remote ground sensing. Performance may be improved with added
capacitance as follow:

of:

O

× R2 can be neglected. To

ADJ

(see Figure 3) should be tied as

1

should be near the ground

2

An input bypass capacitor of 0.1 µF

An adjustment terminal to ground 10 µF capacitor to improve the ripple rejection of about 15
dB (CADJ).

An 1 µF tantalum (or 25 µF Aluminium electrolytic) capacitor on the output to improve
transient response. In additional to external capacitors, it is good practice to add protection
diodes, as shown in Figure 4 D1 protect the device against input short circuit, while D2
protect against output short circuit for capacitance discharging.

Figure 7. Voltage regulator with protection diodes

Note: D1 protect the device against input short circuit, while D2 protects against output short

circuit for capacitors discharging.

9/25

Application information LM117/LM217/LM317

Figure 8. Slow turn-on 15 V regulator

Figure 9. Current regulator

IO = (V

Figure 10. 5 V electronic shut-down regulator

ref/R1

10/25

) + I

= 1.25V/R

ADJ

1

LM117/LM217/LM317 Application information

Figure 11. Digitally selected outputs

(R2 sets maximum VO)

Figure 12. Battery charger (12 V)

sets output impedance of charger ZO = RS (1 + R2/R1). Use of RS allows low charging rates whit fully

* R

S

charged battery.

11/25

Application information LM117/LM217/LM317

Figure 13. Current limited 6 V Charger

* R3 sets peak current (0.6 A for 1 0).

** C1 recommended to filter out input transients.

12/25

LM117/LM217/LM317 Package mechanical data

7 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.

13/25

Package mechanical data LM117/LM217/LM317

TO-3 mechanical data

Dim.

A 11.85 0.466

B0.96 1.05 1.10 0.037 0.041 0.043

C 1.70 0.066

D 8.7 0.342

E 20.0 0.787

G 10.9 0.429

N 16.9 0.665

P 26.2 1.031

R 3.88 4.09 0.152 0.161

U 39.5 1.555

V 30.10 1.185

Min. Typ. Max. Min. Typ. Max.

mm. inch.

P

A

G

U

V

N

O

B

D

C

E

R

P003C/C

14/25

LM117/LM217/LM317 Package mechanical data

Figure 14. Drawing dimension TO-220 (type SMIC-subcon.)

0015988/F

15/25

Package mechanical data LM117/LM217/LM317

Figure 15. Drawing dimension TO-220 (type STD-ST)

16/25

0015988/A

LM117/LM217/LM317 Package mechanical data

Table 6. TO-220 mechanical data

Type STD-ST Type SMIC-Subcon.

Dim.

Min. Typ. Max. Min. Typ. Max.

A 4.40 4.60 4.47 4.57 4.67

A1 0.61 0.88 0.80 0.81 0.86

b1 1.14 1.70 1.15 1.44

c 0.49 0.70 0.56

c1 0.38

D 15.25 15.75 15.07 15.24 15.45

D1 1.27

E 10.00 10.40 10 10.15 10.30

e 2.40 2.70 2.29 2.54 2.79

e1 4.95 5.15 4.83 5.08 5.33

F 1.23 1.32 1.27

H1 6.20 6.60 6.24

J1 2.40 2.72 2.04 2.67 2.92

L 13.00 14.00 13.35 13.50 13.65

L1 3.50 3.93 3.90

mm. mm.

L20 16.40 16.25 16.40 16.55

L30 28.90 28.74

∅P 3.75 3.85 3.83

Q 2.65 2.95 2.72 2.74 2.80

Note: In spite of some difference in tolerances, the packages are compatible.

17/25

Package mechanical data LM117/LM217/LM317

H

TO-220FP mechanical data

Dim.

Min. Typ Max. Min. Typ. Max.

A 4.40 4.60 0.173 0.181

B 2.5 2.7 0.098 0.106

D 2.5 2.75 0.098 0.108

E 0.45 0.70 0.017 0.027

F 0.75 1 0.0300.039

F1 1.15 1.50 0.045 0.059

F2 1.15 1.50 0.045 0.059

G4.95 5.2 0.194 0.204

G1 2.4 2.7 0.094 0.106

H 10.0 10.40 0.393 0.409

L2 16 0.630

L3 28.6 30.6 1.126 1.204

L4 9.8 10.6 0.3850.417

L5 2.93.6 0.114 0.142

L6 15.9 16.4 0.626 0.645

L7 99.3 0.354 0.366

DIA. 33.2 0.118 0.126

mm. inch.

18/25

7012510A-

LM117/LM217/LM317 Package mechanical data

Figure 16. Drawing dimension D2PAK (type STD-ST)

0079457/L

19/25

Package mechanical data LM117/LM217/LM317

Figure 17. Drawing dimension D2PAK (type WOOSEOK-SUBCON.)

20/25

0079457/L

LM117/LM217/LM317 Package mechanical data

Table 7. D

DIM.

A 4.40 4.60 4.30 4.70

A1 0.03 0.23 0 0.20

b 0.70 0.93 0.70 0.90

b2 1.14 1.70 1.17 1.37

c 0.45 0.60 0.45 0.50 0.60

c2 1.23 1.36 1.25 1.30 1.40

D 8.95 9.35 9 9.20 9.40

D1 7.50 7.50

E 10 10.40 9.80 10.20

E1 8.50 7.50

e2.54 2.54

e1 4.88 5.28 5.08

H 15 15.85 15 15.30 15.60

J1 2.49 2.69 2.20 2.60

L 2.29 2.79 1.79 2.79

2

PAK mechanical data

TYPE STD-ST TYPE WOOSEOK-SUBCON.

mm. mm.

MIN. TYP. MAX. MIN. TYP. MAX.

L1 1.27 1.40 1 1.40

L2 1.30 1.75 1.20 1.60

R 0.4 0.30

V2 0° 8° 0° 3°

Note: The D2PAK package coming from the subcontractor Wooseok is fully compatible with the

ST's package suggested footprint.

21/25

Package mechanical data LM117/LM217/LM317

Figure 18. D2PAK footprint recommended data

Table 8. Footprint data

A 12.20 0.480

B9.750.384

C 16.90 0.665

D3.500.138

E1.600.063

F2.540.100

G5.080.200

Values

mm. inch.

22/25

LM117/LM217/LM317 Package mechanical data

Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data

Dim.

Min. Typ. Max. Min. Typ. Max.

A180 7.086

C 12.8 13.0 13.2 0.504 0.512 0.519

D 20.2 0.795

N60 2.362

T 14.4 0.567

Ao 10.50 10.6 10.70 0.413 0.417 0.421

Bo 15.70 15.80 15.90 0.618 0.622 0.626

Ko 4.804.90 5.00 0.189 0.193 0.197

Po 3.9 4.0 4.1 0.153 0.157 0.161

P 11.9 12.0 12.1 0.468 0.472 0.476

mm. inch.

23/25

Revision history LM117/LM217/LM317

8 Revision history

Table 9. Document revision history

Date Revision Changes

01-Sep-2004 10 Mistake V

2

19-Jan-2007 11

13-Jun-2007 12

D
document has been reformatted.

Change values ΔI
IO = 10 mA to 500mA on Ta bl e 5 .

REF

PAK mechanical data has been updated, add footprint data and the

23-Nov-2007 13 Added Ta bl e 1 .

06-Feb-2008 14

Added: TO-220 mechanical data Figure 14 on page 15, Figure 15 on page 16
and Table 6 on page 17.

==> VO, tables 1, 4 and 5.

ADJ

and V

test condition of IO = 10 mA to I

REF

MAX

==>

24/25

LM117/LM217/LM317

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 ST’s 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 ST’S 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.

UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.

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.

© 2008 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 - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America

www.st.com

25/25