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LDS3985M33R - STMicroelectronics

Description: STMicroelectronics LDS3985M33R, Single Low Dropout Voltage Regulator, 300mA 3.3 V, 5-Pin SOT-23

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LDS3985M33R - STMicroelectronics PCB footprint - SOT23 (5-Pin) - SOT23 (5-Pin) - SOT23_5
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LDS3985M33R - STMicroelectronics  - 3D model - SOT23 (5-Pin) - SOT23_5
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LDS3985M33R Details

  • Manufacturer Part Number:

    LDS3985M33R

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-23

  • Package Description:

    SOT-23, 5 PIN

  • Pin Count:

    5

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    7

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.25 V

  • Dropout Voltage1-Nom:

    0.15 V

  • Input Voltage Absolute-Max:

    6 V

  • Input Voltage-Max:

    6 V

  • Input Voltage-Min:

    2.5 V

  • JESD-30 Code:

    R-PDSO-G5

  • JESD-609 Code:

    e3

  • Length:

    2.9 mm

  • Line Regulation-Max:

    0.00726%

  • Load Regulation-Max:

    0.03947%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    5

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.3 A

  • Output Voltage1-Max:

    3.399 V

  • Output Voltage1-Min:

    3.201 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LSSOP

  • Package Equivalence Code:

    TSOP5/6,.11,37

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.45 mm

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • 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

  • Voltage Tolerance-Max:

    3%

  • Width:

    1.625 mm

LDS3985M33R Frequently Asked Questions (FAQs)

  • A good PCB layout for the LDS3985M33R involves keeping the input and output traces short and symmetrical, using a solid ground plane, and placing decoupling capacitors close to the device. A 4-layer PCB with a dedicated power plane and a dedicated ground plane is recommended.
  • To ensure the stability of the output voltage, it is essential to use a suitable output capacitor with a low ESR (Equivalent Series Resistance) and a high ripple current rating. A minimum output capacitance of 10uF is recommended, and the capacitor should be placed close to the device.
  • The LDS3985M33R can handle a maximum input voltage of 18V, but it is recommended to operate the device within the specified input voltage range of 4.5V to 15V for optimal performance and reliability.
  • The LDS3985M33R has built-in overcurrent protection and thermal shutdown features. However, it is still important to add external protection components such as fuses or PTC resistors to prevent damage from excessive current or voltage. Additionally, ensure good airflow and a suitable heat sink to prevent overheating.
  • The LDS3985M33R is rated for operation up to 125°C, but its performance and reliability may degrade at high temperatures. It is recommended to derate the device's output current and voltage according to the temperature derating curve provided in the datasheet.

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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