LM140QML_技术文档

March 2006

LM140LQML Series

3-Terminal Positive Regulators

General Description

tion. If internal power dissipation becomes too high for the

heat sinking provided, the thermal shut-down circuit takes

over, preventing the IC from overheating.

The LM140L series of three terminal positive regulators is

available with several fixed output voltages making them

useful in a wide range of applications. The LM140LA is an

improved version of the LM78LXX series with a tighter out-

put voltage tolerance (specified over the full military tem-

perature range), higher ripple rejection, better regulation and

lower quiescent current. The LM140LA regulators have 2%

V_OUTspecification, 0.04%/V line regulation, and 0.01%/mA

Features

n Line regulation of 0.04%/V

n Load regulation of 0.01%/mA

n Output voltage tolerances of 2% at T_j= 25˚C and 4%

over the temperature range

load regulation. When used as a zener diode/resistor com-

bination replacement, the LM140LA usually results in an

effective output impedance improvement of two orders of

magnitude, and lower quiescent current. These regulators

can provide local on card regulation, eliminating the distribu-

tion problems associated with single point regulation. The

voltages available allow the LM140LA to be used in logic

systems, instrumentation, Hi-Fi, and other solid state elec-

tronic equipment. Although designed primarily as fixed volt-

age regulators, these devices can be used with external

components to obtain adjustable voltages and currents.

n Output current of 100 mA

n Internal thermal overload protection

n Output transistor safe area protection

n Internal short circuit current limit

Output Voltage Options

Device ID

LM140LA-5.0

LM140LA-12

LM140LA-15

Output Voltage

5V

12V

15V

With adequate heat sinking the regulator can deliver 100 mA

output current. Current limiting is included to limit the peak

output current to a safe value. Safe area protection for the

output transistor is provided to limit internal power dissipa-

Ordering Information

NS Part Number

LM140LAH-5.0/883

LM140LAH-12/883

LM140LAH-15/883

JAN Part Number

NS Package Number

Package Description

3LD T0–39 Metal Can

H03A

Connection Diagrams

TO-39 Metal Can Package (H)

20155302

Bottom View

See NS Package Number H03A

DS201553

www.national.com

Equivalent Circuit

20155301

www.national.com

2

Absolute Maximum Ratings (Note 1)

Input Voltage

35V

Internal Power Dissipation (Note 2)

Operating Temperature Range

Maximum Junction Temperature

Storage Temperature Range

Lead Temperature (Soldering, 10 sec.)

Thermal Resistance

Internally Limited

−55˚C ≤ T_A≤ +125˚C

+150˚C

−65˚C ≤ T_A≤ +150˚C

+300˚C

θ_JA

@

Still Air 0.5W

201˚C/W

79˚C/W

38˚C/W

TBD

@

500LF / Min Air Flow 0.5W

@

1.0W)

θ_JC

(

ESD Susceptibility (Note 3)

Quality Conformance Inspection

Mil-Std-883, Method 5005 - Group A

Subgroup

Description

Static tests at

Temp ˚C

25

1

2

Static tests at

125

-55

25

3

Static tests at

4

Dynamic tests at

Functional tests at

Switching tests at

Settling time at

5

125

-55

25

6

7

8A

8B

9

125

-55

25

10

11

12

13

14

125

-55

25

125

-55

3

www.national.com

LM140LA-5.0 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V_I= 10V, I_L= 40mA

Sub-

groups

Symbol

I_Q

Parameter

Quiescent Current

Conditions

Notes

Min Max

Unit

4.5

4.2

mA

V

1

2

V_O

Output Voltage

4.9

4.8

-20

-40

-30

-0.1

-0.5

5.1

5.2

20

1

1, 2, 3

1

V_I= 20V, I_L= 5mA

V

V_I= 20V, I_L= 100mA

V_I= 7.2V, I_L= 5mA

V_I= 7.2V, I_L= 100mA

5mA ≤ I_L≤ 40 mA

5mA ≤ I_L≤ 100mA

I_L= 100mA, 7.5V ≤ V_I≤ 25V

7V ≤ V_I≤ 25V

V

R_Load

R_Line

∆I_Q

Load Regulation

mV

mA

40

1

Line Regulation

30

1

30

1

Quiescent Current Change

5mA ≤ I_L≤ 40mA

0.1

0.5

1, 2, 3

1

7.5V ≤ V_I≤ 35V

AC Parameters

Sub-

groups

4

Symbol

RR

Parameter

Ripple Rejection

Conditions

Notes

Min Max

Unit

ƒ = 120Hz, e_I= 1V_RMS

55

dB

LM140LA-12 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V_I= 19V, I_L= 40mA

Sub-

groups

Symbol

I_Q

Parameter

Quiescent Current

Conditions

Notes

Min Max

Unit

4.5

4.2

mA

V

1

2

V_O

Output Voltage

11.75 12.25

11.5 12.5

1

1, 2, 3

1

V_I= 27V, I_L= 5mA

V

V_I= 27V, I_L= 100mA

V_I= 14.5V, I_L= 5mA

V_I= 14.5V, I_L= 100mA

5mA ≤ I_L≤ 40mA

V

R_Load

R_Line

∆I_Q

Load Regulation

-40

-80

-65

-0.1

-0.5

40

80

mV

mA

5mA ≤ I_L≤ 100mA

I_L= 100mA, 14.5V ≤ V_I≤ 30V

14.2V ≤ V_I≤ 30V

1

Line Regulation

65

1

65

1

Quiescent Current Change

5mA ≤ I_L≤ 40mA

0.1

0.5

1, 2, 3

1

14.3V ≤ V_I≤ 35V

AC Parameters

Sub-

groups

4

Symbol

Parameter

Ripple Rejection

Conditions

Notes

Min Max

Unit

RR

ƒ = 120Hz, e_I= 1V_RMS

47

dB

www.national.com

4

LM140LA-15 Electrical Characteristics

DC Parameters

The following conditions apply, unless otherwise specified.

DC: V_I= 23V, I_L= 40mA

Sub-

groups

Symbol

I_Q

Parameter

Quiescent Current

Conditions

Notes

Min Max

Unit

4.5

4.2

mA

V

1

2

V_O

Output Voltage

14.7 15.3

14.4 15.6

1

1, 2, 3

1

V_I= 30V, I_L= 5mA

V

V_I= 30V, I_L= 100mA

V_I= 17.6V, I_L= 5mA

V_I= 17.6V, I_L= 100mA

5mA ≤ I_L≤ 40mA

V

R_Load

R_Line

∆I_Q

Load Regulation

-50

50

mV

mA

5mA ≤ I_L≤ 100mA

I_L= 100mA, 17.3V ≤ V_I≤ 30V

17.3V ≤ V_I≤ 30V

-100 100

1

Line Regulation

-70

70

1

Quiescent Current Change

5mA ≤ I_L≤ 40mA

-0.1

-0.5

0.1

0.5

1, 2, 3

1

17.5V ≤ V_I≤ 35V

AC Parameters

Sub-

groups

4

Symbol

RR

Parameter

Ripple Rejectionƒ

Conditions

Notes

Min Max

Unit

f = 120Hz, e_I= 1V_RMS

47

dB

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed

specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test

conditions.

Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by T

(maximum junction temperature), θ (package junction

JA

Jmax

to ambient thermal resistance), and T (ambient temperature). The maximum allowable power dissipation at any temperature is P

= (T

- T )/θ or the

A

Dmax

Jmax A JA

number given in the Absolute Maximum Ratings, whichever is lower.

Note 3: Human body model, 100pF discharged through 1.5KΩ

Note 4: It is recommended that a minimum load capacitor of 0.01 µF be used to limit the high frequency noise bandwidth.

5

www.national.com

Typical Performance Characteristics

Maximum Average Power

Dissipation

Maximum Average

Power Dissipation

20155307

20155308

20155311

20155313

Peak Output Current

Dropout Voltage

20155310

Output Impedance

Ripple Rejection

20155312

www.national.com

6

Typical Performance Characteristics (Continued)

Quiescent Current

20155315

20155314

Typical Applications (Note 4)

Fixed Output Regulator

20155305

*Required if the regulator is located far from the power supply filter.

**See note 3 in the electrical characteristics table.

Adjustable Output Regulator

20155306

V

OUT

= 5V + (5V/R1 + I ) R2

O

5V/R1 = 3 I load regulation (L,) [(R1 + R2)/R1] (L, of LM140LA-5.0)

O

7

www.national.com

Revision History

Released

Revision

Section

Originator

Changes

03/10/06

A

New release to corporate format

L. Lytle

3 MDS data sheets converted into one Corp.

data sheet format. Drift tables were removed

from electrical characteristics since not

performed on 883 product. MDS data sheets

MNLM140LA-05-H Rev. 0B0,

MNLM140LA-12-H Rev. 0B0 and

MNLM140LA-15-H Rev. 0B0. will be

archived.

www.national.com

8

Physical Dimensions inches (millimeters) unless otherwise noted

TO-39 Metal Can Package (H)

NS Package Number H03A

National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves

the right at any time without notice to change said circuitry and specifications.

For the most current product information visit us at www.national.com.

LIFE SUPPORT POLICY

NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS

WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR

CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the body, or

(b) support or sustain life, and whose failure to perform when

properly used in accordance with instructions for use

provided in the labeling, can be reasonably expected to result

in a significant injury to the user.

2. A critical component is any component of a life support

device or system whose failure to perform can be reasonably

expected to cause the failure of the life support device or

system, or to affect its safety or effectiveness.

BANNED SUBSTANCE COMPLIANCE

National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products

Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain

no ‘‘Banned Substances’’ as defined in CSP-9-111S2.

Leadfree products are RoHS compliant.

National Semiconductor

Americas Customer

Support Center

National Semiconductor

Europe Customer Support Center

Fax: +49 (0) 180-530 85 86

National Semiconductor

Asia Pacific Customer

Support Center

National Semiconductor

Japan Customer Support Center

Fax: 81-3-5639-7507

Email: new.feedback@nsc.com

Tel: 1-800-272-9959

Email: europe.support@nsc.com

Deutsch Tel: +49 (0) 69 9508 6208

English Tel: +44 (0) 870 24 0 2171

Français Tel: +33 (0) 1 41 91 8790

Email: ap.support@nsc.com

Email: jpn.feedback@nsc.com

Tel: 81-3-5639-7560

www.national.com

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,

and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should

obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are

sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard

warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where

mandated by government requirements, testing of all parameters of each product is not necessarily performed.

TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and

applications using TI components. To minimize the risks associated with customer products and applications, customers should provide

adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,

or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information

published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a

warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual

property of the third party, or a license from TI under the patents or other intellectual property of TI.

Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied

by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive

business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional

restrictions.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all

express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not

responsible or liable for any such statements.

TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably

be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing

such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and

acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products

and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be

provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in

such safety-critical applications.

TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are

specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military

specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at

the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are

designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated

products in automotive applications, TI will not be responsible for any failure to meet such requirements.

Following are URLs where you can obtain information on other Texas Instruments products and application solutions:

Products

Audio

Applications

www.ti.com/audio

amplifier.ti.com

dataconverter.ti.com

www.dlp.com

Communications and Telecom www.ti.com/communications

Amplifiers

Data Converters

DLP® Products

DSP

Computers and Peripherals

Consumer Electronics

Energy and Lighting

Industrial

www.ti.com/computers

www.ti.com/consumer-apps

www.ti.com/energy

dsp.ti.com

www.ti.com/industrial

www.ti.com/medical

www.ti.com/security

Clocks and Timers

Interface

www.ti.com/clocks

interface.ti.com

logic.ti.com

Medical

Security

Logic

Space, Avionics and Defense www.ti.com/space-avionics-defense

Transportation and Automotive www.ti.com/automotive

Power Mgmt

Microcontrollers

RFID

power.ti.com

microcontroller.ti.com

www.ti-rfid.com

Video and Imaging

www.ti.com/video

OMAP Mobile Processors www.ti.com/omap

Wireless Connectivity www.ti.com/wirelessconnectivity

TI E2E Community Home Page

e2e.ti.com

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265


型号：	LM140QML
厂家：	TEXAS INSTRUMENTS
描述：	LM140LQML Series 3-Terminal Positive Regulators LM140LQML系列三端稳压器正三端稳压器
文件：	总11页 (文件大小：633K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LM140QML [TI]

相关型号：

LM140R-05

LM140R-05-883B

LM140R-12

LM140R-12-883B

LM140R-15

LM140R-15-883B

LM140SMD-05

LM140SMD-05-8QR-B

LM140SMD-12

LM140SMD-12-8QR-B

LM140SMD-15

LM140SMD-15-8QR-B