78L05供应商报价哪里找芯片批发报价原理和应用中文资料-中国IC网-芯三七

当前位置：IC37首页_>7字母起始型号索引_>7字母起始型号索引第199页更新时间：2025-01-13 11:00:10

产品型号78L05的概述

1. 概述 78L05是一款常用的线性稳压器，属于78系列稳压器的一部分。该芯片在电源设计领域被广泛应用，尤其是在需要提供稳定电压的场合，如数字电路、模拟电路及微控制器的电源管理等。78L05的主要功能是将较高的输入电压转换为5V的输出电压，具有良好的电压精度和稳定性。 78L05具体设计用于为负载提供恒定的5V输出，最大负载电流为100mA，适合低功耗应用。这种倾向于低功耗和高效能的特点使其在便携式电子设备中显得尤为重要。78L05的设计也考虑到了过热保护和短路保护等功能，提高了其在实际应用中的可靠性。 2. 详细参数 - 输入电压范围：通常为7V至25V。超出该范围可能会导致芯片损坏或无法正常工作。 - 输出电压：固定为5V，输出电流可以达到100mA。 - 静态电流：通常为5mA，待机时功耗相对较低。 - 效率：由于78L05是一个线性稳压器，因此在输出电流和输入电压差较大...

产品型号78L05的Datasheet PDF文件预览

January 2000

LM78LXX Series

3-Terminal Positive Regulators

tection for the output transistors is provided to limit internal

power dissipation. If internal power dissipation becomes too

high for the heat sinking provided, the thermal shutdown cir-

cuit takes over preventing the IC from overheating.

General Description

The LM78LXX series of three terminal positive regulators is

available with several fixed output voltages making them

useful in a wide range of applications. When used as a zener

diode/resistor combination replacement, the LM78LXX usu-

ally results in an effective output impedance improvement of

two orders of magnitude, and lower quiescent current. These

Features

n LM78L05 in micro SMD package

5 over the temperature

n Output voltage tolerances of

range

n Output current of 100 mA

regulators can provide local on card regulation, eliminating

the distribution problems associated with single point regula-

tion. The voltages available allow the LM78LXX to be used in

logic systems, instrumentation, HiFi, and other solid state

electronic equipment.

n Internal thermal overload protection

n Output transistor safe area protection

n Internal short circuit current limit

n Available in plastic TO-92 and plastic SO-8 low profile

packages

The LM78LXX is available in the plastic TO-92 (Z) package,

the plastic SO-8 (M) package and a chip sized package

(8-Bump micro SMD) using National’s micro SMD package

technology. With adequate heat sinking the regulator can de-

liver 100 mA output current. Current limiting is included to

limit the peak output current to a safe value. Safe area pro-

n No external components

n Output voltages of 5.0V, 6.2V, 8.2V, 9.0V, 12V, 15V

Connection Diagrams

SO-8 Plastic (M)

(Narrow Body)

(TO-92)

Plastic Package (Z)

DS007744-3

DS007744-2

Bottom View

Top View

micro SMD Marking Orientation

8-Bump micro SMD

DS007744-24

Top View

(Bump Side Down)

DS007744-33

Top View

DS007744

www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Operating Junction Temperature

SO-8

0˚C to 125˚C

micro SMD

−40˚C to 85˚C

Soldering Information

Infrared or Convection (20 sec.)

Wave Soldering (10 sec.)

ESD Susceptibility (Note 2)

235˚C

260˚C (lead time)

1kV

Power Dissipation (Note 5)

Input Voltage

Internally Limited

35V

Storage Temperature

−65˚C to +150˚C

LM78LXX Electrical Characteristics Limits in standard typeface are for T_J25˚C, Bold typeface ap-

plies over 0˚C to 125˚C for SO-8 package and −40˚C to 85˚C for micro SMD package. Limits are guaranteed by produc-

tion testing or correlation techniques using standard Statistical Quality Control (SQC) methods. Unless otherwise specified: I_O

40 mA, C_I0.33 µF, C_O0.1 µF.

LM78L05

Unless otherwise specified, V_IN10V

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

4.8

5.2

7V ≤ V_IN≤ 20V

1 mA ≤ I_O≤ 40 mA

(Note 3)

4.75

5.25

1 mA ≤ I_O≤ 70 mA

(Note 3)

5.25

∆V_O

Line Regulation

Load Regulation

7V ≤ V_IN≤ 20V

8V ≤ V_IN≤ 20V

∆V_O

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

I_Q

Quiescent Current

∆I_Q

Quiescent Current Change

8V ≤ V_IN≤ 20V

1.0

0.1

µV

1 mA ≤ I_O≤ 40 mA

V_n

Output Noise Voltage

Ripple Rejection

10 Hz to 100 kHz

(Note 4)

120 Hz

8V ≤ V_IN≤ 16V

I_PK

Peak Output Current

140

I_O5 mA

Average Output Voltage Tempco

−0.65

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

6.7

θ_JA

Thermal Resistance

(8-Bump micro SMD)

230.9

˚C/W

LM78L62AC

Unless otherwise specified, V_IN12V

Symbol Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

5.95

6.2

6.45

8.5V ≤ V_IN≤ 20V

1 mA ≤ I_O≤ 40 mA

(Note 3)

5.9

6.5

1 mA ≤ I_O≤ 70 mA

(Note 3)

6.5

∆V_O

Line Regulation

Load Regulation

8.5V ≤ V_IN≤ 20V

9V ≤ V_IN≤ 20V

175

125

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

www.national.com

LM78L62AC (Continued)

Unless otherwise specified, V_IN12V

Symbol Parameter

Conditions

Min

Typ

Max

5.5

1.5

0.1

Units

I_Q

Quiescent Current

∆I_Q

Quiescent Current Change

8V ≤ V_IN≤ 20V

1 mA ≤ I_O≤ 40 mA

V_n

Output Noise Voltage

Ripple Rejection

10 Hz to 100 kHz

µV

(Note 4)

120 Hz

10V ≤ V_IN≤ 20V

I_PK

Peak Output Current

140

I_O5 mA

Average Output Voltage Tempco

−0.75

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

7.9

LM78L82AC

Unless otherwise specified, V_IN14V

Symbol Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

7.87

8.2

8.53

11V ≤ V_IN≤ 23V

1 mA ≤ I_O≤ 40 mA

(Note 3)

7.8

8.6

1 mA ≤ I_O≤ 70 mA

(Note 3)

8.6

∆V_O

Line Regulation

Load Regulation

11V ≤ V_IN≤ 23V

12V ≤ V_IN≤ 23V

175

125

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

I_Q

Quiescent Current

5.5

1.5

0.1

∆I_Q

Quiescent Current Change

12V ≤ V_IN≤ 23V

µV

1 mA ≤ I_O≤ 40 mA

V_n

Output Noise Voltage

Ripple Rejection

10 Hz to 100 kHz

(Note 4)

120 Hz

12V ≤ V_IN≤ 22V

I_PK

Peak Output Current

140

−0.8

I_O5 mA

Average Output Voltage Tempco

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

9.9

LM78L09AC

Unless otherwise specified, V_IN15V

Symbol Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

8.64

9.0

9.36

11.5V ≤ V_IN≤ 24V

1 mA ≤ I_O≤ 40 mA

(Note 3)

8.55

9.45

1 mA ≤ I_O≤ 70 mA

(Note 3)

www.national.com

LM78L09AC (Continued)

Unless otherwise specified, V_IN15V

Symbol Parameter

∆V_O

Conditions

11.5V ≤ V_IN≤ 24V

13V ≤ V_IN≤ 24V

Min

Typ

100

Max

200

150

Units

Line Regulation

Load Regulation

∆V_O

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

I_Q

Quiescent Current

5.5

1.5

0.1

∆I_Q

Quiescent Current Change

11.5V ≤ V_IN≤ 24V

1 mA ≤ I_O≤ 40 mA

V_n

Output Noise Voltage

Ripple Rejection

µV

120 Hz

15V ≤ V_IN≤ 25V

I_PK

Peak Output Current

140

−0.9

I_O5 mA

Average Output Voltage Tempco

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

10.7

LM78L12AC

Unless otherwise specified, V_IN19V

Symbol Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

11.5

12.5

14.5V ≤ V_IN≤ 27V

1 mA ≤ I_O≤ 40 mA

(Note 3)

11.4

12.6

1 mA ≤ I_O≤ 70 mA

(Note 3)

12.6

∆V_O

Line Regulation

Load Regulation

14.5V ≤ V_IN≤ 27V

16V ≤ V_IN≤ 27V

180

110

100

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

I_Q

Quiescent Current

∆I_Q

Quiescent Current Change

16V ≤ V_IN≤ 27V

1 mA ≤ I_O≤ 40 mA

0.1

V_n

Output Noise Voltage

Ripple Rejection

µV

120 Hz

15V ≤ V_IN≤ 25

I_PK

Peak Output Current

140

−1.0

I_O5 mA

Average Output Voltage Tempco

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

13.7

14.5

www.national.com

LM78L15AC

Unless otherwise specified, V_IN23V

Symbol Parameter

Conditions

Min

Typ

Max

Units

V_O

Output Voltage

14.4

15.0

15.6

17.5V ≤ V_IN≤ 30V

1 mA ≤ I_O≤ 40 mA

(Note 3)

14.25

15.75

1 mA ≤ I_O≤ 70 mA

(Note 3)

15.75

∆V_O

I_Q

Line Regulation

Load Regulation

17.5V ≤ V_IN≤ 30V

20V ≤ V_IN≤ 30V

250

140

150

1 mA ≤ I_O≤ 100 mA

1 mA ≤ I_O≤ 40 mA

Quiescent Current

∆I_Q

Quiescent Current Change

20V ≤ V_IN≤ 30V

1 mA ≤ I_O≤ 40 mA

0.1

V_n

Output Noise Voltage

Ripple Rejection

µV

120 Hz

18.5V ≤ V_IN≤ 28.5V

I_PK

Peak Output Current

140

−1.3

I_O5 mA

Average Output Voltage Tempco

mV/˚C

V_IN(Min)

Minimum Value of Input Voltage

Required to Maintain Line Regulation

16.7

17.5

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device

outside of its stated operating conditions.

Note 2: Human body model, 1.5 kΩ in series with 100 pF.

Note 3: Power dissipation ≤ 0.75W.

Note 4: Recommended minimum load capacitance of 0.01 µF to limit high frequency noise.

Note 5: Typical thermal resistance values for the packages are:

230 ˚C/W

Z Package: θ

60 ˚C/W,

M Package: θ

180 ˚C/W

micro SMD Package: θ

230.9˚C/W

www.national.com

Typical Performance Characteristics

Maximum Average Power

Dissipation (Z Package)

Dropout Voltage

Peak Output Current

DS007744-17

DS007744-16

DS007744-14

Ripple Rejection

Output Impedance

Quiescent Current

DS007744-18

DS007744-20

DS007744-19

Quiescent Current

DS007744-21

www.national.com

Equivalent Circuit

LM78LXX

DS007744-7

Typical Applications

Fixed Output Regulator

DS007744-8

Required if the regulator is located more than 3" from the power supply filter.

*See (Note 4) in the electrical characteristics table.

www.national.com

Typical Applications (Continued)

Adjustable Output Regulator

DS007744-9

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

OUT

5V/R1 3 I , load regulation (L ) ≈ [(R1 + R2)/R1] (L of LM78L05)

Current Regulator

DS007744-10

/R1) + I

OUT Q

OUT

1.5 mA over line and load changes

5V, 500 mA Regulator with Short Circuit Protection

DS007744-11

*Solid tantalum.

* Heat sink Q1.

Optional: Improves ripple rejection and transient response.

Load Regulation: 0.6% 0 ≤ I ≤ 250 mA pulsed with t

50 ms.

15V, 100 mA Dual Power Supply

DS007744-12

*Solid tantalum.

www.national.com

Typical Applications (Continued)

Variable Output Regulator 0.5V-18V

DS007744-13

*Solid tantalum.

+ 5V, R1 (−V /I

)

OUT

IN Q LM78L05

5V (R2/R4) for (R2 + R3) (R4 + R5)

OUT

A 0.5V output will correspond to (R2/R4) 0.1 (R3/R4) 0.9

www.national.com

Physical Dimensions inches (millimeters) unless otherwise noted

NOTES: UNLESS OTHERWISE SPECIFIED

1. EPOXY COATING

2. 63Sn/37Pb EUTECTIC BUMP

3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD.

4. PIN 1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. REMAINING PINS ARE

NUMBERED COUNTERCLOCKWISE.

5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X₁IS PACKAGE WIDTH, X₂IS PACK-

AGE LENGTH AND X₃IS PACKAGE HEIGHT.

6. REFERENCE JEDEC REGISTRATION MO-211, VARIATION BC.

8-Bump micro SMD

Order Number LM78L05IBP or LM78L05IBPX

NS Package Number BPA08AAA

X₁1.285 X₂1.285 X₃0.7

www.national.com

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)

S.O. Package (M)

Order Number LM78L05ACM, LM78L12ACM or LM78L15ACM

NS Package Number M08A

Molded Offset TO-92 (Z)

Order Number LM78L05ACZ, LM78L09ACZ, LM78L12ACZ,

LM78L15ACZ, LM78L62ACZ or LM78L82ACZ

NS Package Number Z03A

www.national.com

Notes

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.

National Semiconductor

Corporation

Americas

Tel: 1-800-272-9959

Fax: 1-800-737-7018

Email: support@nsc.com

National Semiconductor

Europe

National Semiconductor

Asia Pacific Customer

Response Group

Tel: 65-2544466

Fax: 65-2504466

National Semiconductor

Japan Ltd.

Tel: 81-3-5639-7560

Fax: 81-3-5639-7507

Fax: +49 (0) 1 80-530 85 86

Email: europe.support@nsc.com

Deutsch Tel: +49 (0) 1 80-530 85 85

English Tel: +49 (0) 1 80-532 78 32

Français Tel: +49 (0) 1 80-532 93 58

Italiano Tel: +49 (0) 1 80-534 16 80

Email: sea.support@nsc.com

www.national.com

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.

78L05相关产品..

78L05(009)78L05(150MA)78L05(78L05)78L05(8A)78L05(8C1P 78L05(CJ78L05)78L05(SOT-8/SOT-89)78L05(SOT-89)78L05(TO-92)78L05(TRC)78L05(UPC78L05J)78L05(WS)78L05+78L05-1 78L05-150 78L05-2

78L05相关文章

Fatal error

/www/wwwroot/website_ic37/s.ic37.com/index.php

504

电子百科

产品导航

产品型号78L05的概述

产品型号78L05的Datasheet PDF文件预览

78L05相关产品..

78L05相关文章