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LM431SACM32X - onsemi

Description: Low Output Noise Voltage; Temperature Compensated for Operation Over Full Rated Operating Temperature Range; Equivalent Full-Range Temperature Coefficient of 50 ppm/°C Typical; Sink Current Capability of 1.0 to 100 mA; Fast Turn-on Response; Programmable Output Voltage to 36 V; Low Dynamic Output Impedance 0.2 Ω Typical

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PCB Footprints
LM431SACM32X - onsemi PCB footprint - Other - Other - LM431SACM32X-3
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LM431SACM32X - onsemi  - 3D model - Other - LM431SACM32X-3
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LM431SACM32X Details

  • Manufacturer Part Number:

    LM431SACM32X

  • Brand Name:

    onsemi

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOT-23-3

  • Package Description:

    SOT-23, 3 PIN

  • Manufacturer Package Code:

    318BM

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    onsemi

  • YTEOL:

    0

  • Additional Feature:

    THE OUTPUT VOLTAGE CAN BE SET TO ANY VALUE BETWEEN 2.5V AND 36V WITH TWO EXTERNAL RESISTORS

  • Analog IC - Other Type:

    TWO TERMINAL VOLTAGE REFERENCE

  • JESD-30 Code:

    R-PDSO-G3

  • JESD-609 Code:

    e3

  • Length:

    2.92 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Output Current-Max:

    0.1 A

  • Output Voltage-Max:

    2.55 V

  • Output Voltage-Min:

    2.45 V

  • Output Voltage-Nom:

    2.5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    TSSOP

  • Package Equivalence Code:

    TO-236

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.2 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Temp Coef of Voltage-Max:

    87.273 ppm/°C

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Trim/Adjustable Output:

    YES

  • Width:

    1.3 mm

LM431SACM32X Frequently Asked Questions (FAQs)

  • A good PCB layout for the LM431SACM32X involves keeping the input and output pins as close as possible to minimize noise and parasitic inductance. It's also recommended to use a solid ground plane and to keep the device away from high-current carrying traces.
  • To ensure proper biasing, the LM431SACM32X requires a minimum voltage of 2.5V between the Vref and Vcc pins, and a maximum voltage of 36V between the Vcc and GND pins. Additionally, the device should be operated within the recommended operating temperature range of -40°C to 125°C.
  • The maximum allowed voltage on the Vref pin of the LM431SACM32X is 36V. Exceeding this voltage can cause damage to the device.
  • While the LM431SACM32X can be used as a voltage regulator, it's not its primary intended use. The device is designed as a voltage reference, and its output current capability is limited to 10mA. For voltage regulation, a dedicated voltage regulator IC is recommended.
  • The LM431SACM32X has a built-in noise reduction circuit that helps to filter out input voltage noise and ripple. However, it's still recommended to use a decoupling capacitor between the Vcc and GND pins to further reduce noise and ensure stable operation.

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Part Image LM431SACM32X Fairchild Semiconductor Corporation

Two Terminal Voltage Reference, 1 Output, 2.5V, Trim/Adjustable, BIPolar, PDSO3