KA79M15TU_技术文档

August 2013

KA79MXX / LM79MXX

3-Terminal 0.5 A Negative Voltage Regulator

Description

Features

The KA79MXX / LM79MXX series of three terminal

medium current negative voltage regulators are mono-

lithic integrated circuits designed as fixed-voltage regula-

tors. These regulators employ internal current limiting,

thermal shutdown, and safe area compensation.

• No External Components Required

• Output Current in Excess of 0.5 A

• Internal Thermal Overload

• Internal Short-Circuit Current Limiting

• Output Transistor Safe Area Compensation

• Output Voltages: -5 V, -12 V

TO-220

Input

1

D-PAK _Input

1

1. GND 2. Input 3. Output

Ordering Information⁽¹⁾

Product Number

KA79M05TU

Package

Packing Method

Operating Temperature

TO-220 (Dual Gauge)

Rail

KA79M05RTM

KA79M05RTF

KA79M12RTM

KA79M12RTF

LM79M05CT

D-PAK

Tape and Reel

Rail

0 to +125°C

TO-220 (Single Gauge)

Note:

1. Refer to below figure for TM / TF suffix of DPAK packing option.

www.fairchildsemi.com

KA79MXX / LM79MXX Rev. 1.1.0

1

Block Diagram

GND

R10

R11

R12

R9

Q15

R6

R2

R3

Q13

Q8

R15

R14

Q12

R8

D1

D2

D3

R1

Q3

Q14

Q10

Q11

Q16

Q9

R13

Q17

R5

R4

R7

D5

Q18

Q25

Q2

R16

Q24

OUT

Q5

Q1

R17

D4

Q4

Q7

Q6

Q23

C1

C2

Q26

Q19

Q27

R23

R20

R22

R24

R19

R25

Q21

Q20

Q22

R18

R21

IN

Figure 1. Block Diagram

Absolute Maximum Ratings

Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera-

ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi-

tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The

absolute maximum ratings are stress ratings only.

Symbol

V_I

Parameter

Value

-35

Unit

V

Input Voltage

V_O= -5 V to -12 V

TO-220

R_θJC

R_θJA

T_OPR

T_STG

Thermal Resistance, Junction-Case

Thermal Resistance, Junction-Air

Operating Temperature Range

Storage Temperature Range

5

°C/W

°C

TO-220

65

0 to +125

-65 to +150

°C

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

2

Electrical Characteristics (KA79M05 / KA79M05R / LM79M05)

Refer to test circuit, 0°C ≤ T_J≤ +125°C, l_O= 350 mA, V_I= -10 V, C_I= 0.33 μF, C_O= 0.1 μF unless otherwise specified.

Symbol

Parameter

Output Voltage

Conditions

Min.

Typ. Max.

Unit

T_J= +25°C

-4.80

-5.00

7

-5.20

-5.25

50

V_O

V

I

_O= 5 mA to 350 mA, V_I= -7 V to -25 V -4.75

V_I= -7 V to -25 V

ΔV_O

Line Regulation⁽²⁾

T_J=+25°C

mV

V_I= -8 V to -25 V

2

30

ΔV_O

Load Regulation⁽²⁾

Quiescent Current

I_O= 5 mA to 500 mA, T_J= +25°C

T_J= +25°C

30

100

6.0

mV

mA

I_Q

3.0

I_O= 5 mA to 350 mA

0.4

ΔI_Q

Quiescent Current Change

mA

I

_O= 200 mA, V_I= -8 V to -25 V

0.4

ΔVo/ΔT

V_N

Output Voltage Drift

Output Noise Voltage

Ripple Rejection

Dropout Voltage

I_O= 5 mA

-0.2

40

mV/°C

μV

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, V_J= -8 V to -18 V

T_J= +25°C, I_O= 500 mA

T_J= +25°C, V_I= -35 V

T_J= +25°C

RR

54

60

dB

V_D

1.1

140

650

V

I_SC

Short-Circuit Current

Peak Current

mA

I_PK

Note:

2. Load and line regulation are specified at constant junction temperature. Change in V_Odue to heating effects must

be taken into account separately. Pulse testing with low duty is used.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

3

Electrical Characteristics (KA79M12R)

Refer to test circuit, 0°C ≤ T_J≤ +125°C, l_O= 350 mA, V_I= -19 V, C_I= 0.33 μF, C_O= 0.1 μF unless otherwise specified.

Symbol

Parameter

Output Voltage

Conditions

T_J= +25°C

Min.

Typ. Max.

Unit

-11.5

-12.0

-12.5

V_O

V

I_O= 5 mA to 350 mA,

V_I= -14.5 V to -30 V

-11.4

-12.0

-12.6

V_I= -14.5 V to -30 V

V_I= -15 V to -25 V

8.0

3.0

30

3

80

50

ΔV_O

Line Regulation⁽³⁾

T_J=+25°C

mV

ΔV_O

Load Regulation⁽³⁾

Quiescent Current

T_J= +25°C I_O= 5.0 mA to 500 mA

T_J= +25°C

240

6

mV

mA

I_Q

I_O= 5 mA to 350 mA

V_I= -14.5 V to -30 V

I_O= 5 mA

0.4

ΔI_Q

Quiescent Current Change

mA

ΔV_O/ΔT

V_N

Output Voltage Drift

Output Noise Voltage

Ripple Rejection

Dropout Voltage

-0.8

75

mV/°C

μV

f = 10 Hz to 100 kHz, T_A= +25°C

f = 120 Hz, V_I= -15 V to -25 V

I_O= 500 mA, T_J= +25°C

V_I= -35 V, T_J= +25°C

T_J= +25°C

RR

54

60

dB

V_D

1.1

140

650

V

I_SC

Short Circuit Current

Peak Current

mA

I_PK

Note:

3. Load and line regulation are specified at constant junction temperature. Change in V_Odue to heating effects must be

taken into account separately. Pulse testing with low duty is used.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

4

Typical Performance Characteristics

0.0

V_IN= -10V

V_O= -5V

-0.2

-0.4

-0.6

-0.8

-1.0

-1.2

I_OUT= 0mA

I_OUT= 300mA

I_OUT= 200mA

I_OUT= 100mA

I_OUT= 500mA

I_OUT= 400mA

0

25

50

75

100

125

150

T_A- Temperature [^oC]

Figure 2. Dropout Voltage

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

5

Typical Applications

2

3

KA79MXX

LM79MXX

V_I

V_O

1

1.0 μF

2.0 μF

Figure 3. Fixed Output Regulator

KA79MXX

LM79MXX

V_I

V_O

R₁

_

C₃

SOLID

TANTALUM

C₁

_

+

1 μF

2.2 μF

+

_

SOLID

C₂

25 μF

R₂

TANTALUM

+

Figure 4. Variable Output

Notes:

4. To specify an output voltage, substitute voltage value for "XX".

5. C_Iis required if the regulator is located an appreciable distance from the power supply filter. For value given,

capacitor must be solid tantalum. If aluminium electronics are used, 25 μF aluminum electrolytic may be substituted.

6. C₂improves transient response and ripple rejection. Do not increase beyond 50 μF.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

6

Physical Dimensions

TO-220 (SINGLE GAUGE)

Figure 5. TO-220, MOLDED, 3-LEAD, JEDEC VARIATION AB

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/dwg/TO/TO220B03.pdf.

For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:

http://www.fairchildsemi.com/packing_dwg/PKG-TO220B03_TC.pdf.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

7

Physical Dimensions (Continued)

TO-220 (DUAL GAUGE)

Figure 6. TO220, MOLDED, 3-LEAD, NON-JEDEC VARIATION AB [DUAL GUAGE]

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/dwg/TO/TO220Y03.pdf.

For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:

http://www.fairchildsemi.com/packing_dwg/PKG-TO220Y03.pdf.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

8

Physical Dimensions (Continued)

D-PAK

Figure 7. 3-LEAD, TO-252, JEDEC TO-252 VAR. AB, SURFACE MOUNT (DPAK)

Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner

without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or

obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the

warranty therein, which covers Fairchild products.

Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:

http://www.fairchildsemi.com/dwg/TO/TO252D03.pdf.

For current tape and reel specifications, visit Fairchild Semiconductor’s online packaging area:

http://www.fairchildsemi.com/packing_dwg/PKG-TO252D03.pdf.

KA79MXX / LM79MXX Rev. 1.1.0

www.fairchildsemi.com

9

TRADEMARKS

The following includes registered and unregistered trademarks and service marks, owned by Fairchild Semiconductor and/or its global subsidiaries, and is not

intended to be an exhaustive list of all such trademarks.

Sync-Lock™

2CoolA

FPSA

®

AccuPowerA

F-PFSA

®*

AX-CAP^®*

BitSiCA

Build it NowA

CorePLUSA

CorePOWERA

CROSSVOLTA

CTLA

FRFET^®

PowerTrench^®

PowerXS™

Programmable Active DroopA

QFET^®

Global Power Resource^SM

GreenBridgeA

Green FPSA

Green FPSA e-SeriesA

GmaxA

TinyBoost^®

TinyBuck^®

TinyCalcA

TinyLogic^®

TINYOPTOA

TinyPowerA

TinyPWMA

TinyWireA

TranSiCA

QSA

Quiet SeriesA

RapidConfigureA

A

GTOA

IntelliMAXA

Current Transfer LogicA

DEUXPEED^®

Dual Cool™

EcoSPARK^®

EfficientMaxA

ISOPLANARA

Making Small Speakers Sound Louder

and Better™

Saving our world, 1mW/W/kW at a time™

SignalWiseA

SmartMaxA

TriFault DetectA

TRUECURRENT^®*

ꢀSerDesA

MegaBuckA

SMART STARTA

Solutions for Your SuccessA

SPM^®

ESBCA

MICROCOUPLERA

MicroFETA

®

MicroPakA

Fairchild^®

UHC^®

Ultra FRFETA

UniFETA

VCXA

VisualMaxA

VoltagePlusA

XS™

STEALTHA

MicroPak2A

Fairchild Semiconductor^®

FACT Quiet SeriesA

FACT^®

SuperFET^®

MillerDriveA

SuperSOTA-3

MotionMaxA

mWSaver^®

SuperSOTA-6

FAST^®

SuperSOTA-8

OptoHiTA

SupreMOS^®

FastvCoreA

OPTOLOGIC^®

OPTOPLANAR^®

FETBenchA

SyncFETA

* Trademarks of System General Corporation, used under license by Fairchild Semiconductor.

DISCLAIMER

FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE

RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT

OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE

SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN,

WHICH COVERS THESE PRODUCTS.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE

EXPRESS WRITTEN APPROVAL OF FAIRCHILD 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 (c) 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 of the user.

2. A critical component in 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.

ANTI-COUNTERFEITING POLICY

Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com,

under Sales Support.

Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their

parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed

applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the

proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild

Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors

are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical

and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise.

Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global

problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors.

PRODUCT STATUS DEFINITIONS

Definition of Terms

Datasheet Identification

Product Status

Definition

Datasheet contains the design specifications for product development. Specifications may change

in any manner without notice.

Advance Information

Formative / In Design

Datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild

Semiconductor reserves the right to make changes at any time without notice to improve design.

Datasheet contains final specifications. Fairchild Semiconductor reserves the right to make

changes at any time without notice to improve the design.

Datasheet contains specifications on a product that is discontinued by Fairchild Semiconductor.

The datasheet is for reference information only.

Preliminary

No Identification Needed

Obsolete

First Production

Full Production

Not In Production

Rev. I65

www.fairchildsemi.com


型号：	KA79M15TU
厂家：	FAIRCHILD SEMICONDUCTOR
描述：	Fixed Negative Standard Regulator, 15V, BIPolar, PSFM3, TO-220, 3 PIN 局域网输出元件调节器
文件：	总10页 (文件大小：303K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

KA79M15TU [FAIRCHILD]

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