Microchip Technology Inc

MCP1791

In Production

The MCP1791 is a 70 mA, ceramic output cap stable, high voltage, Low Dropout Regulator (LDO) with shutdown and power good functions. The MCP1791 is capable of handling continuous input voltage of up to 30V and is load dump protect for up to 48V, making it especially suitable for automotive as well as 12V/24V industrial applications. The MCP1791 comes in thermally enhanced DDPAK-5 package as well as space-efficient SOT223-5 package.

 

    Features

        • Wide steady state supply voltage: 6.0V - 30.0V
        • 48V (43.5V ±10%) load dump protected for 180ms with a 30 second repetition rate
        • 70 mA output current
        • Low quiescent current: 70 µA typical
        • Fixed output voltages: 3.0V, 3.3V, 5.0V
        • Extended Junction Temperature Range: -40 to +125°C
        • Output Voltage Tolerances of ±2.5% over the temperature range
        • Short Circuit Current Foldback
        • Shutdown Input
        • Power Good Output
        • High PSRR, -90 dB@100 Hz (typical)
    Parameter Name
    Value
    Product Type
    Single LDOs
    # of Out
    1
    IOUT #1
    70
    IOUT #2
    n/a
    IOUT #3
    n/a
    IOUT #4
    n/a
    IOUT (mA)
    70
    VIN Min (V)
    6
    VIN Max (V)
    30
    VOUT (V)
    3.0 3.3 5.0
    Voltage Drop Typ (mV)
    700
    IGND Typ (µA)
    70
    Tol Typ %
    ±0.2
    PSRR 1 kHz (dB)
    90
    Soft Start Pin
    Load Dump
    Yes
    Rev Bat
    Reverse Current Protect
    Documentation
    Data Sheets
    02/06/2012
    1108KB
      Application Notes
     
     
     
    AppNote
    02/23/2006
    527KB
    AppNote
    11/12/2002
    266KB
    AppNote
    11/12/2002
    229KB
      Product Selection Tools
     
     
     
     
    Product Line Card
    09/16/2014
    7598KB
      User Guides
     
     
     
    User Guides
    04/29/2009
    550KB
    User Guides
    06/18/2009
    602KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    MCP1791-3002E/ET
    5
    DDPAK
    -40C to +125C
    TUBE
    0.93
    0.78
    0.71
    0.68
    0.67
    MCP1791-3302E/ET
    5
    DDPAK
    -40C to +125C
    TUBE
    0.93
    0.78
    0.71
    0.68
    0.67
    MCP1791-5002E/ET
    5
    DDPAK
    -40C to +125C
    TUBE
    0.93
    0.78
    0.71
    0.68
    0.67
    MCP1791T-3002E/DC
    5
    SOT-223
    -40C to +125C
    T/R
    0.73
    0.61
    0.55
    0.53
    0.53
    MCP1791T-3002E/ET
    5
    DDPAK
    -40C to +125C
    T/R
    0.93
    0.78
    0.71
    0.68
    0.67
     
    MCP1791T-3302E/DC
    5
    SOT-223
    -40C to +125C
    T/R
    0.73
    0.61
    0.55
    0.53
    0.53
    MCP1791T-3302E/ET
    5
    DDPAK
    -40C to +125C
    T/R
    0.93
    0.78
    0.71
    0.68
    0.67
     
    MCP1791T-5002E/DC
    5
    SOT-223
    -40C to +125C
    T/R
    0.73
    0.61
    0.55
    0.53
    0.53
    MCP1791T-5002E/ET
    5
    DDPAK
    -40C to +125C
    T/R
    0.93
    0.78
    0.71
    0.68
    0.67
     

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • TO-220-5/ TO263-5 Voltage Regulator Evaluation Board ( TO263-5EV-VREG )

      TO-220-5/

      The TO220-5 / TO263-5 Voltage Regulator Evaluation Board is designed to provide functional evaluation of Microchip Voltage Regulators that utilize the TO220-5 and TO263-5 package. The TO220-5 / TO263-5 Voltage Regulator Evaluation Board does not come with a voltage regulator soldered onto the board. This allows the user to attach the voltage regulator of their choosing to the board and perform...

    • SOT223-3 Voltage Regulator Evaluation Board ( SOT223-3EV-VREG )

      (Not Recommended for new design)
      SOT223-3

      The SOT223-3 Voltage Regulator Evaluation Board is designed to evaluate and test voltage regulators. By soldering the desired device to the evaluation board, the user can easily validate several parameters of the device.

    • SOT223-5 Voltage Reg Eval Board ( SOT223-5EV-VREG )

      SOT223-5

      The SOT223-5 Voltage Regulator Evaluation Board is designed to be used to facilitate the evaluation of Microchip’s voltage regulators or to be used as a standalone voltage regulator board. Jumpers have been placed on the board to facilitate testing of specific voltage regulator parameters. The jumpers may also be used to select pull-up and pull-down voltage levels.

    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    MCP1791-5002E/ET
    1.462500
    2.520000
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791T-3002E/ET
    1.462500
    2.053333
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791-3002E/ET
    1.462500
    2.520000
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791T-5002E/ET
    1.462500
    2.053333
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791-3302E/ET
    1.462500
    2.520000
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791T-3302E/ET
    1.462500
    2.053333
    5
    DDPAK
    -
    Matte Tin
    e3
    MCP1791T-3002E/DC
    0.016500
    0.350000
    5
    SOT-223
    -
    Matte Tin
    e3
    MCP1791T-5002E/DCVAO
    0.016500
    0.350000
    5
    SOT-223
    -
    Matte Tin
    e3
    MCP1791T-5002E/DCV03
    0.016500
    0.350000
    5
    SOT-223
    -
    Matte Tin
    e3
    MCP1791T-3302E/DC
    0.016500
    0.350000
    5
    SOT-223
    -
    Matte Tin
    e3
    MCP1791T-5002E/DC
    0.016500
    0.350000
    5
    SOT-223
    -
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.