MC78LC00 Series Voltage Regulator

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  • Semiconductor Components Industries, LLC, 2009January, 2009 Rev. 10

    1 Publication Order Number:MC78LC00/D

    MC78LC00 Series

    Micropower VoltageRegulator

    The MC78LC00 series of fixed output low dropout linear regulatorsare designed for handheld communication equipment and portablebattery powered applications which require low quiescent current. TheMC78LC00 series features an ultralow quiescent current of 1.1 A.Each device contains a voltage reference unit, an error amplifier, aPMOS power transistor, and resistors for setting output voltage.

    The MC78LC00 has been designed to be used with low cost ceramiccapacitors and requires a minimum output capacitor of 0.1 F. Thedevice is housed in the microminiature Thin SOT235 surface mountpackage and SOT89, 3 pin. Standard voltage versions are 1.5, 1.8,2.5, 2.7, 2.8, 3.0, 3.3, 4.0, and 5.0 V. Other voltages are available in100 mV steps.

    Features

    Low Quiescent Current of 1.1 A Typical

    Excellent Line and Load Regulation

    Maximum Operating Voltage of 12 V

    Low Output Voltage Option

    High Accuracy Output Voltage of 2.5%

    Industrial Temperature Range of 40C to 85C

    Two Surface Mount Packages (SOT89, 3 Pin, or SOT23, 5 Pin)

    These are PbFree Devices

    Typical Applications

    Battery Powered Instruments

    HandHeld Instruments

    Camcorders and Cameras

    Figure 1. Representative Block Diagram

    2 3

    1

    This device contains 8 active transistors.

    Vin

    GND

    VO

    Vref

    SOT89H SUFFIX

    CASE 1213

    1

    TAB

    (Tab is connected to Pin 2)

    1

    2

    3

    GND

    Vin

    Vout

    Tab

    (Top View)

    See detailed ordering and shipping information in the packagedimensions section on page 10 of this data sheet.

    ORDERING INFORMATION

    TSOP5NTR SUFFIX

    CASE 483

    1

    5

    MARKING DIAGRAMS ANDPIN CONNECTIONS

    1

    3 N/C

    GND

    2Vin

    Vout 4

    N/C5

    (Top View)

    http://onsemi.com

    XXX= Specific Device CodeA = Assembly LocationY = YearW = Work Week = PbFree Package

    (Note: Microdot may be in either location)

    XX

    X A

    YW

    XX

    AY

    W

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    PIN FUNCTION DESCRIPTION

    Pin No.

    Pin Name

    Description

    1

    GND

    Power supply ground

    2

    Vin

    Positive power supply input voltage

    3

    Vout

    Regulated Output

    4

    N/C

    No Internal Connection

    5

    N/C

    No Internal Connection

    MAXIMUM RATINGS

    Rating Symbol Value Unit

    Input Voltage

    Vin

    12

    V

    Output Voltage

    Vout

    0.3 to Vin +0.3

    V

    Power Dissipation and Thermal CharacteristicsCase 48301 (Thin SOT235) NTR SuffixPower Dissipation @ TA = 85CThermal Resistance, JunctiontoAmbientCase 1213 (SOT89) H SuffixPower Dissipation @ TA = 25CThermal Resistance, JunctiontoAmbient

    PDRJA

    PDRJA

    140280

    900111

    mWC/W

    mWC/W

    Operating Junction Temperature

    TJ

    +125

    C

    Operating Ambient Temperature

    TA

    40 to +85

    C

    Storage Temperature

    Tstg

    55 to +150

    C

    Lead Soldering Temperature @ 260C

    Tsolder

    10

    sec

    Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above theRecommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affectdevice reliability.

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    ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 1.0 V, Cin = 1.0 F, Cout = 1.0 F, TJ = 25C, unless otherwise noted.) (Note 5)NTR SUFFIX

    Characteristic Symbol Min Typ Max Unit

    Output Voltage (TA = 25C, Iout = 1.0 mA)1.5 V1.8 V2.5 V2.7 V2.8 V3.0 V3.3 V4.0 V5.0 V

    Vout1.4551.7462.4252.6462.7442.943.2343.94.90

    1.51.82.52.72.83.03.34.05.0

    1.5451.8542.5752.7542.8563.063.3664.15.10

    V

    Output Voltage (TA = 40C to 85C)1.5 V1.8 V2.5 V2.7 V2.8 V3.0 V3.3 V4.0 V5.0 V

    Vout1.4551.7462.4252.6192.7162.9103.2013.94.90

    1.51.82.52.72.83.03.34.05.0

    1.5451.8542.5752.7812.8843.093.3994.15.10

    V

    Line Regulation (Vin = VO(nom.) + 1.0 V to 12 V, Iout = 1.0 mA) Regline 0.05 0.2 %/V

    Load Regulation (Iout = 1.0 mA to 10 mA) Regload 40 60 mV

    Output Current (Note 6)1.5 V, 1.8 V (Vin = 4.0 V)2.5 V, 2.7 V, 2.8 V, 3.0 V (Vin = 5.0 V)3.3 V (Vin = 6.0 V)4.0 V (Vin = 7.0 V)5.0 V (Vin = 8.0 V)

    Iout3550508080

    50808080100

    mA

    Dropout Voltage (Iout = 1.0 mA, Measured at Vout 3.0%)1.5 V1.6 V3.2 V3.3 V3.9 V4.0 V5.0 V

    VinVout

    35303030

    70605338

    mV

    Quiescent Current (Iout = 1.0 mA to IO(nom.)) IQ 1.1 3.6 A

    Output Voltage Temperature Coefficient Tc 100 ppm/C

    Output Noise Voltage (f = 1.0 kHz to 100 kHz) Vn 89 Vrms

    1. This device series contains ESD protection and exceeds the following tests:Human Body Model 2000 V per MILSTD883, Method 3015Machine Model Method 200 V

    2. Latch up capability (85C) 100 mA3. Maximum package power dissipation limits must be observed.

    PD TJ(max) TA

    RJA4. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.5. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.6. Output Current is measured when Vout = VO1 3% where VO1 = Vout at Iout = 0 mA.

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    ELECTRICAL CHARACTERISTICS (Vin = Vout(nom.) + 1.0 V, Cin = 1.0 F, Cout = 1.0 F, TJ = 25C, unless otherwise noted.) (Note 11)HT SUFFIX

    Characteristic Symbol Min Typ Max Unit

    Output Voltage30HT1 Suffix (Vin = 5.0 V)33HT1 Suffix (Vin = 5.0 V)40HT1 Suffix (Vin = 6.0 V)50HT1 Suffix (Vin = 7.0 V)

    2.9503.2183.9004.875

    3.03.34.05.0

    3.0753.3824.1005.125

    V

    Line RegulationVin = [VO + 1.0] V to 10 V, IO = 1.0 mA

    Regline

    0.05

    0.2

    %/V

    Load Regulation (IO = 1.0 to 10 mA)30HT1 Suffix (Vin = 5.0 V)33HT1 Suffix (Vin = 6.0 V)40HT1 Suffix (Vin = 7.0 V)50HT1 Suffix (Vin = 8.0 V)

    Regload

    40405060

    60607090

    mV

    Output Current (Note 12)30HT1 Suffix (Vin = 5.0 V)33HT1 Suffix (Vin = 6.0 V)40HT1 Suffix (Vin = 7.0 V)50HT1 Suffix (Vin = 8.0 V)

    IO

    35354555

    50506580

    mA

    Dropout Voltage30HT1 Suffix (IO = 1.0 mA)33HT1 Suffix (IO = 1.0 mA)40HT1 Suffix (IO = 1.0 mA)50HT1 Suffix (IO = 1.0 mA)

    Vin VO

    40352525

    60533838

    mV

    Quiescent Current30HT1 Suffix (Vin = 5.0 V)33HT1 Suffix (Vin = 5.0 V)40HT1 Suffix (Vin = 6.0 V)50HT1 Suffix (Vin = 7.0 V)

    ICC

    1.11.11.21.3

    3.33.33.63.9

    A

    Output Voltage Temperature Coefficient

    TC

    100

    ppm/C

    7. This device series contains ESD protection and exceeds the following tests:Human Body Model 2000 V per MILSTD883, Method 3015Machine Model Method 200 V

    8. Latch up capability (85C) 100 mA9. Maximum package power dissipation limits must be observed.

    PD TJ(max) TA

    RJA10.Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.11. Low duty pulse techniques are used during test to maintain junction temperature as close to ambient as possible.12.Output Current is measured when Vout = VO1 3% where VO1 = Vout at Iout = 0 mA.

    DEFINITIONS

    Load RegulationThe change in output voltage for a change in output current

    at a constant temperature.

    Dropout VoltageThe input/output differential at which the regulator output

    no longer maintains regulation against further reductions ininput voltage. Measured when the output drops 3% below itsnominal. The junction temperature, load current, andminimum input supply requirements affect the dropout level.

    Maximum Power DissipationThe maximum total dissipation for which the regulator will

    operate within its specifications.

    Quiescent CurrentThe quiescent current is the current which flows through the

    ground when the LDO operates without a load on its output:internal IC operation, bias, etc. When the LDO becomesloaded, this term is called the Ground current. It is actually the

    difference between the input current (measured through theLDO input pin) and the output current.

    Line RegulationThe change in output voltage for a change in input voltage.

    The measurement is made under conditions of low dissipationor by using pulse technique such that the average chiptemperature is not significantly affected.

    Line Transient ResponseTypical over and undershoot response when input voltage is

    excited with a given slope.

    Maximum Package Power DissipationThe maximum power package dissipation is the power

    dissipation level at which the junction temperature reaches itsmaximum operating value, i.e. 125C. Depending on theambient power dissipation and thus the maximum availableoutput current.

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    Vin, Input Voltage (V)

    2.5

    3.2

    TA = 25C

    IO = 10 mA

    3

    2.8

    2.6

    2.4

    2.22.7 3.52.9 3.1 3.3

    VO

    , OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )

    Figure 2. Output Voltage versus Input Voltage

    IO = 5 mA

    2.3

    2.5

    2.7

    2.9

    3.1

    IO = 1 mA

    NTR Series

    2.5

    3.2

    Figure 3. Output Voltage versus Input Voltage

    TA = 25C

    IO = 1.0 mA

    IO = 5.0 mA

    IO = 10 mA

    3.0

    2.8

    2.6

    2.4

    2.22.7 3.52.9 3.1 3.3

    MC78LC30HT1

    2.95

    2.85

    3

    2.8

    2.9

    2.6

    3.05

    IO, Output Current (mA)

    VO

    , OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )

    Figure 4. Output Voltage versus Output Current

    0 806040 10020 120

    25C

    80C

    40C

    2.75

    2.7

    2.65

    NTR Series

    0

    3.2

    IO, Output Current (mA)

    Figure 5. Output Voltage versus Output Current

    TA = 80C

    TA = 30C

    TA = 25C

    3.1

    3.0

    2.9

    2.8

    2.7

    020 40 60 80 100 120

    MC78LC30HT1

    0

    2

    1.8

    1.6

    1.4

    403020

    1.2

    1

    0.8

    0.2

    010 50

    IO, Output Current (mA)

    Figure 6. Dropout Voltage versus Output Current

    Vin

    V

    O, D

    RO

    PO

    UT

    VO

    LTA

    GE

    (V

    )

    MC78LC30NTRTA = 25C

    0.6

    0.4

    0

    2.0

    Figure 7. Dropout Voltage versus Output Current

    1.6

    1.2

    0.8

    0.4

    010 20 30 40 50

    MC78LC30HT1TA = 25C

    VO

    , OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )V

    O, O

    UT

    PU

    T V

    OLT

    AG

    E (

    V)

    Vin, Input Voltage (V)

    Vin

    V

    O, D

    RO

    PO

    UT

    VO

    LTA

    GE

    (V

    )

    IO, Output Current (mA)

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    2.98

    TA, Ambient Temperature (C)

    VO

    , OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )

    Figure 8. Output Voltage versus Temperature

    40 40 6020020 802.9

    3.02

    2.94

    3.06

    3.1

    MC78LC30NTRVin = 4.0 VIO = 10 mA

    40

    3.10

    Figure 9. Output Voltage versus Temperature

    Vin = 5.0 VIO = 10 mA

    3.06

    3.02

    2.98

    2.94

    2.9020 0 20 40 60 80

    MC78LC30HT1

    1.4

    1.3

    1.1

    1.2

    1

    0.9

    0.8

    Vin, Input Voltage (V)

    Figure 10. Quiescent Current versus Input Voltage

    I Q, Q

    UIE

    SC

    EN

    T C

    UR

    RE

    NT

    (A

    )

    3 7654 8 9 12

    MC78LC30NTRTA = 25CIO = 0 mA

    10 11 3.0

    Figure 11. Quiescent Current versus Input Voltage

    TA = 25C1.4

    1.3

    1.2

    1.1

    1.0

    0.9

    0.84.0 5.0 6.0 7.0 8.0 9.0 10

    MC78LC30HT1

    0.75

    0.5

    1

    1.25

    1.5

    1.75

    TA, Ambient Temperature (C)

    I Q, Q

    UIE

    SC

    EN

    T C

    UR

    RE

    NT

    (A

    )

    20 6040200 80

    Figure 12. Quiescent Current versus Temperature

    MC78LC30NTRVin = 4.0 VIO = 0 mA

    40

    Figure 13. Quiescent Current versus Temperature

    Vin = 5.0 V1.2

    1.1

    1.0

    0.9

    0.8

    0.7

    0.620 0 20 40 60 80

    MC78LC30HT1

    TA, Ambient Temperature (C)

    VO

    , OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )

    Vin, Input Voltage (V)

    I Q, Q

    UIE

    SC

    EN

    T C

    UR

    RE

    NT

    (A

    )

    TA, Ambient Temperature (C)

    I Q, Q

    UIE

    SC

    EN

    T C

    UR

    RE

    NT

    (A

    )

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    0.0

    0.7

    5.0

    0.6

    4.01.0

    Vin

    V

    out,

    DR

    OP

    OU

    T V

    OLT

    AG

    E (

    V)

    0.5

    Figure 14. Dropout Voltage versus Set Output Voltage

    0.8

    VO, Set Output Voltage (V)

    2.0 3.0 6.00

    0.4

    0.3

    0.2

    0.1

    NTR Series

    0

    0.8

    Figure 15. Dropout Voltage versusSet Output Voltage

    IO = 10 mA

    IO = 1.0 mA

    0.7

    0.6

    0.5

    0.4

    0.3

    0.2

    0.1

    01.0 2.0 3.0 4.0 5.0 6.0

    HT1 Series

    4.0

    200

    5.0

    100

    300

    300

    6.0

    Time (mS)

    Figure 16. Line Transient

    Inpu

    t Vol

    tage

    (V

    )

    0 2.0 2.51.51.00.5

    Vin = 4.5 V to 5.5 VVout = 3.0 V

    100

    200

    0

    Out

    put V

    olta

    geD

    evia

    tion

    (mV

    ) RL = 3 kCout = 0.1 F

    NTR Series

    INP

    UT

    VO

    LTA

    GE

    /OU

    TP

    UT

    VO

    LTA

    GE

    (V

    )

    0

    8.0

    t, Time (ms)

    CO = 0.1 FIO = 1.0 mA

    Figure 17. Line Transient Response

    Input Voltage

    Output Voltage

    7.5

    7.0

    6.5

    6.0

    5.5

    5.0

    4.5

    4.02.0 4.0 6.0

    HT1 Series

    0 2.01.51.00.5 2.5

    Vin, Input Voltage (V)

    Figure 18. Output Voltage versus Input Voltage Figure 19. Ground Current versus Input Voltage

    Vou

    t, O

    UT

    PU

    T V

    OLT

    AG

    E (

    V)

    3.5

    3.0

    2.5

    2.0

    0.5

    0

    1.5

    1.0

    TA = 25C

    IO = 50 A

    100 A

    200 A

    0 2.01.51.00.5 2.5

    Vin, Input Voltage (V)

    I g G

    RO

    UN

    D C

    UR

    RE

    NT

    (A

    ) TA = 25CIO = 0 mA

    50 A100 A

    200 A

    1.5

    1.0

    0.8

    0.2

    0

    0.6

    0.4

    50 A

    200 A

    NTR Series NTR Series

    Vin

    V

    out,

    DR

    OP

    OU

    T V

    OLT

    AG

    E (

    V)

    VO, Set Output Voltage (V)

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    APPLICATIONS INFORMATION

    A typical application circuit for the MC78LC00 series isshown in Figure 20.

    Input Decoupling (C1)A 0.1 F capacitor either ceramic or tantalum is

    recommended and should be connected close to theMC78LC00 package. Higher values and lower ESR willimprove the overall line transient response.

    Output Decoupling (C2)The MC78LC00 is a stable component and does not

    require any specific Equivalent Series Resistance (ESR) ora minimum output current. Capacitors exhibiting ESRsranging from a few m up to 3.0 can thus safely be used.The minimum decoupling value is 0.1 F and can beaugmented to fulfill stringent load transient requirements.The regulator accepts ceramic chip capacitors as well astantalum devices. Larger values improve noise rejection andload regulation transient response.

    HintsPlease be sure the Vin and GND lines are sufficiently

    wide. When the impedance of these lines is high, there is achance to pick up noise or cause the regulator tomalfunction.

    Set external components, especially the output capacitor,as close as possible to the circuit, and make leads as short aspossible.

    ThermalAs power across the MC78LC00 increases, it might

    become necessary to provide some thermal relief. Themaximum power dissipation supported by the device isdependent upon board design and layout. Mounting padconfiguration on the PCB, the board material, and also theambient temperature effect the rate of temperature rise forthe part. This is stating that when the MC78LC00 has goodthermal conductivity through the PCB, the junctiontemperature will be relatively low with high powerdissipation applications.

    The maximum dissipation the package can handle isgiven by:

    PD TJ(max) TA

    RJAIf junction temperature is not allowed above the

    maximum 125C, then the MC78LC00NTR can dissipateup to 357 mW @ 25C.

    The power dissipated by the MC78LC00NTR can becalculated from the following equation:

    Ptot Vin * Ignd (Iout) [Vin Vout] * Ioutor

    VinMAX Ptot Vout * Iout

    Ignd Iout

    If an 80 mA output current is needed then the groundcurrent from the data sheet is 1.1 A. For anMC78LC30NTR (3.0 V), the maximum input voltage willthen be 7.4 V.

    VoutC2

    +

    C1

    +

    Battery orUnregulated

    Voltage

    Figure 20. Basic Application Circuit for NTR Suffixes

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    Figure 21. Current Boost Circuit

    2 3VO

    GND

    Vin

    GND

    10.1 F0.1 F

    MC78LC00

    MJD32C

    100

    0.033 F

    Figure 22. Adjustable VO

    VOVin

    ICC

    C2

    C1

    MC78LC00

    R1

    GND

    R2

    2 3

    1

    Figure 23. Current Boost Circuit withOvercurrent Limit Circuit

    VO

    GND

    Vin

    GND

    0.1 F0.1 F

    MC78LC00

    MJD32CQ1

    R1

    R2

    Q2

    MMBT2907ALT1

    0.033 F

    2 3

    1

    IO(short circuit) VBE2

    R2

    VBE1 VBE2R1

    VO VO(Reg)1 R2

    R1

    ICC R2

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    ORDERING INFORMATION

    DeviceNominal

    Output Voltage Marking Package Shipping

    MC78LC15NTR 1.5 LAG Thin SOT235

    3000 Units/7 Tape & Reel

    MC78LC15NTRG 1.5LAG

    Thin SOT235(PbFree)

    MC78LC18NTR 1.8 LAH Thin SOT235

    MC78LC18NTRG 1.8LAH

    Thin SOT235(PbFree)

    MC78LC25NTR 2.5 LAI Thin SOT235

    MC78LC25NTRG 2.5LAI

    Thin SOT235(PbFree)

    MC78LC27NTR 2.7 LAJ Thin SOT235

    MC78LC27NTRG 2.7LAJ

    Thin SOT235(PbFree)

    MC78LC28NTR 2.8 LAK Thin SOT235

    MC78LC28NTRG 2.8LAK

    Thin SOT235(PbFree)

    MC78LC30NTR 3.0 LAL Thin SOT235

    MC78LC30NTRG 3.0LAL

    Thin SOT235(PbFree)

    MC78LC33NTR 3.3 LAM Thin SOT235

    MC78LC33NTRG 3.3LAM

    Thin SOT235(PbFree)

    MC78LC40NTR 4.0 LEC Thin SOT235

    MC78LC40NTRG 4.0LEC

    Thin SOT235(PbFree)

    MC78LC50NTR 5.0 LAN Thin SOT235

    MC78LC50NTRG 5.0LAN

    Thin SOT235(PbFree)

    MC78LC30HT1G 3.00C

    SOT89(PbFree)

    1000 Units Tape & Reel

    MC78LC33HT1G 3.33C

    SOT89(PbFree)

    MC78LC40HT1G 4.00D

    SOT89(PbFree)

    MC78LC50HT1G 5.0 0ESOT89

    (PbFree)

    For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel PackagingSpecifications Brochure, BRD8011/D.

    Additional voltages in 100 mV steps are available upon request by contacting your ON Semiconductor representative.

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    PACKAGE DIMENSIONS

    TSOP5 (SOT235)NTR SUFFIXCASE 48302

    ISSUE H

    NOTES:1. DIMENSIONING AND TOLERANCING PER

    ASME Y14.5M, 1994.2. CONTROLLING DIMENSION: MILLIMETERS.3. MAXIMUM LEAD THICKNESS INCLUDES

    LEAD FINISH THICKNESS. MINIMUM LEADTHICKNESS IS THE MINIMUM THICKNESSOF BASE MATERIAL.

    4. DIMENSIONS A AND B DO NOT INCLUDEMOLD FLASH, PROTRUSIONS, OR GATEBURRS.

    5. OPTIONAL CONSTRUCTION: ANADDITIONAL TRIMMED LEAD IS ALLOWEDIN THIS LOCATION. TRIMMED LEAD NOT TOEXTEND MORE THAN 0.2 FROM BODY.

    DIM MIN MAXMILLIMETERS

    A 3.00 BSCB 1.50 BSCC 0.90 1.10D 0.25 0.50G 0.95 BSCH 0.01 0.10J 0.10 0.26K 0.20 0.60L 1.25 1.55M 0 10 S 2.50 3.00

    1 2 3

    5 4S

    AG

    L

    B

    D

    H

    CJ

    0.70.028

    1.00.039

    mminches

    SCALE 10:1

    0.950.037

    2.40.094

    1.90.074

    *For additional information on our PbFree strategy and solderingdetails, please download the ON Semiconductor Soldering andMounting Techniques Reference Manual, SOLDERRM/D.

    SOLDERING FOOTPRINT*

    0.20

    5X

    C A BT0.102X

    2X T0.20

    NOTE 5

    T

    SEATINGPLANE0.05

    K

    M

    DETAIL Z

    DETAIL Z

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    PACKAGE DIMENSIONS

    K

    L

    G

    H

    M0.10 T SB SA

    M0.10 T SB SA

    D

    E 2 PL

    CJ

    A

    B

    F

    T SEATINGPLANE

    NOTES:1. DIMENSIONING AND TOLERANCING PER ANSI

    Y14.5M, 1982.2. CONTROLLING DIMENSION: MILLIMETERS3. 1213-01 OBSOLETE, NEW STANDARD 1213-02.

    DIMA

    MIN MAX MIN MAXINCHES

    4.40 4.60 0.173 0.181

    MILLIMETERS

    B 2.40 2.60 0.094 0.102C 1.40 1.60 0.055 0.063D 0.37 0.57 0.015 0.022E 0.32 0.52 0.013 0.020F 1.50 1.83 0.059 0.072G 1.50 BSC 0.059 BSCH 3.00 BSC 0.118 BSCJ 0.30 0.50 0.012 0.020K 0.80 --- 0.031 ---L --- 4.25 --- 0.167

    SOT89H SUFFIX

    CASE 121302ISSUE C

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