LM140 - Series 3-Terminal Positive Regulators

LM140 - Series 3-Terminal Positive Regulators

Packaging	Samples & Pricing	Application Notes	Knowledge Base

Features

Complete specifications at 1A load
Output voltage tolerances of ±2% at T_j = 25°C and ±4% over the temperature range (LM140A/LM340A)
Line regulation of 0.01% of V_OUT/V of [DELTA]V_IN at 1A load (LM140A/LM340A)
Load regulation of 0.3% of V_OUT/A (LM140A/LM340A)
Internal thermal overload protection
Internal short-circuit current limit
Output transistor safe area protection
P⁺ Product Enhancement tested

Device	OutputVoltages	Packages
LM140	5, 12, 15	TO-3 (K)
LM340A/LM340	5, 12, 15	TO-3 (K), TO-220 (T), SOT-223 (MP), TO-263 (S) (5V and 12V only)
LM7800C	5, 8, 12, 15	TO-220 (T)

General Description

The LM140/LM340A/LM340/LM7800C monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. More...

Also Recommended

Surface Mount Options, Commercial Temp Range

Additional Resources

Application Notes

Datasheet

RoHS Compliance Information	Size in Kbytes	Date
LM140JAN Three Terminal Positive Regulators	537 Kbytes	7-Feb-06	Download
LM140QML Three Terminal Positive Regulators	303 Kbytes	3-Apr-08	Download

Package Availability, Models, Samples & Pricing

Part Number

Package

Factory Lead Time

Models

Samples &
Electronic
Orders

Budgetary Pricing

Std
Pack
Size

Package
Marking
Format

Type

Pins

Spec.

MSL
Rating

Peak
Reflow

RoHS
Report

CAD
Symbols

Qty

Qty

$US each

LM140K-12

2

NOPB
STD

1
1

NA
NA

Full production

N/A

Buy Now

1K+

$21.90

tray
of
50

NS
ZXYTTE#
LM140K
12P+

6 weeks

500

LM140K-15

2

NOPB
STD

1
1

NA
NA

Full production

N/A

Buy Now

1K+

$21.90

tray
of
50

NS
ZXYTTE#
LM140K
15P+

6 weeks

500

LM140K-5.0

2

NOPB
STD

1
1

NA
NA

Full production

N/A

Buy Now

1K+

$21.90

tray
of
50

NS
ZXYTTE#
LM140K
5.0P+

6 weeks

500

LM140KG-12 MD8

Full production

N/A

tray
of
N/A

6 weeks

10000

LM140KG-5 MD8

Full production

N/A

tray
of
N/A

6 weeks

N/A

LM140H-12/883

3

STD

1

NA

Full production

N/A

Buy Now

50+

$16.40

tray
of
20

NS ZSSXXYYA
LM140H-12/883 Q

14 weeks

1000

LM140H-15/883

3

STD

1

NA

Full production

N/A

Buy Now

50+

$16.40

tray
of
20

NS ZSSXXYYA
LM140H-15/883 Q

15 weeks

500

LM140H-5.0/883

3

STD

1

NA

Full production

N/A

Buy Now

50+

$16.40

tray
of
20

NS ZSSXXYYA
LM140H-5.0/883 Q

18 weeks

100

LM140K-5.0/883

2

STD

1

NA

Lifetime buy

N/A

50+

$42.90

tray
of
50

NS ZSSXXYYA
LM140K-5.0
/883 Q

12 weeks

100

LM140K-12/883

2

STD

1

NA

Full production

N/A

Buy Now

50+

$42.90

tray
of
50

NS ZSSXXYYA
LM140K-12
/883 Q

8 weeks

500

JM38510/10703BXA
(JL140-12BXA)

3

Lifetime buy

N/A

Buy Now

50+

$39.90

tray
of
20

NS ZSSXXYYA 27014 Q
JM38510/10703BXA

6 weeks

50

JM38510/10704BXA
(JL140-15BXA)

3

Lifetime buy

N/A

50+

$38.00

tray
of
20

NS ZSSXXYYA 27014 Q
JM38510/10704BXA

6 weeks

100

JM38510/10706BYA
(JL140-5BYA)

2

Lifetime buy

N/A

Buy Now

50+

$39.30

tray
of
50

NSZSSXXYYA
JM38510/
10706BYA
27014 Q

6 weeks

100

JM38510/10706SYA
(JL140-5SYA)

2

Full production

N/A

tray
of
50

NSZSSXXYYA
JM38510/
10706SYA
27014 Q

16 weeks

N/A

Obsolete Versions

Obsolete Part	Alternate Part or Supplier	Source	Last Time Buy Date
LM140AK-12/883	NONE	NONE	09 Mar 1999
LM140AK-15-MLS	NONE	NONE	08 Sep 1998
LM140AK-15/883	NONE	NONE	09 Mar 1999
LM140AK-5.0/883	NONE	NONE	09 Mar 1999
LM140H-24/883	NONE	NONE	09 Jun 1998
LM140H-6.0/883	NONE	NONE	09 Jun 1998
LM140H-8.0/883	NONE	NONE	09 Jun 1998
LM140K-12-MLS	NONE	NONE	08 Sep 1998
LM140K-15/883	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM140K-5.0/883	LM117K/883	NATIONAL SEMICONDUCTOR	01 Dec 2009
LM140KG-12 MW8	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM140KG-15 MDS	NONE	NATIONAL SEMICONDUCTOR	01 Feb 2008
LM140KG-15 MD8	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM140KG-5 MW8	NONE	NATIONAL SEMICONDUCTOR	03 Dec 2008
LM140LAH-15-MLS	NONE	NONE	08 Sep 1998
LM140LAH5.0-MLS	NONE	NONE	08 Sep 1998

General Description

The LM140/LM340A/LM340/LM7800C monolithic 3-terminal positive voltage regulators employ internal current-limiting, thermal shutdown and safe-area compensation, making them essentially indestructible. If adequate heat sinking is provided, they can deliver over 1.0A output current. They are intended as fixed voltage regulators in a wide range of applications including local (on-card) regulation for elimination of noise and distribution problems associated with single-point regulation. In addition to use as fixed voltage regulators, these devices can be used with external components to obtain adjustable output voltages and currents.

Considerable effort was expended to make the entire series of regulators easy to use and minimize the number of external components. It is not necessary to bypass the output, although this does improve transient response. Input bypassing is needed only if the regulator is located far from the filter capacitor of the power supply.

The 5V, 12V, and 15V regulator options are available in the steel TO-3 power package. The LM340A/LM340/LM7800C series is available in the TO-220 plastic power package, and the LM340-5.0 is available in the SOT-223 package, as well as the LM340-5.0 and LM340-12 in the surface-mount TO-263 package.

More Application Notes

Title	Size in Kbytes	Date
AN-127: Application Note 127 LM143 Monolithic High Voltage Operational Amplifier Applications	441 Kbytes	2-May-04	Download
AN-103: Application Note 103 LM340 Series Three Terminal Positive Regulators	421 Kbytes	3-Oct-02	Download
AN-260: Application Note 260 A 20-Bit (1 ppm) Linear Slope-Integrating A/D Converter	148 Kbytes	3-Oct-02	Download
AN-271: Application Note 271 Applying the New CMOS MICRO-DAC	230 Kbytes	4-Oct-04	Download
AN-271 (Japanese): Application Note 271 Applying the New CMOS MICRO-DAC	342 Kbytes

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[Information as of 8-Nov-2009]