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LDS3985PU33R - STMicroelectronics

Description: Very low drop and low noise BiCMOS 300 mA voltage regulator

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LDS3985PU33R - STMicroelectronics PCB footprint - Small Outline No-lead - Small Outline No-lead - DFN6 (3x3)
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LDS3985PU33R - STMicroelectronics  - 3D model - Small Outline No-lead - DFN6 (3x3)
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LDS3985PU33R Details

  • Manufacturer Part Number:

    LDS3985PU33R

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    DFN

  • Package Description:

    DFN-6

  • Pin Count:

    6

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • 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:

    S-XDSO-N6

  • JESD-609 Code:

    e3

  • Length:

    3 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:

    6

  • 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:

    UNSPECIFIED

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC6,.13,38

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1 mm

  • Surface Mount:

    YES

  • Technology:

    BICMOS

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    3%

  • Width:

    3 mm

LDS3985PU33R Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN5123, which includes guidelines for component placement, routing, and thermal management to ensure optimal performance and minimize noise.
  • The output capacitor value depends on the specific application requirements, such as output voltage ripple, transient response, and stability. A general guideline is to use a capacitor with a value between 10uF to 47uF, with a low ESR (Equivalent Series Resistance) and a voltage rating that exceeds the output voltage. Consult the datasheet and application notes for more detailed guidance.
  • The LDS3985PU33R has an absolute maximum input voltage rating of 18V, but the recommended operating input voltage range is 4.5V to 15V. Exceeding the maximum input voltage can damage the device.
  • The LDS3985PU33R has an operating junction temperature range of -40°C to 150°C, but the device's performance and reliability may degrade at high temperatures. Consult the datasheet and application notes for thermal management guidelines and derating information.
  • To ensure stability, follow the recommended PCB layout, use a suitable output capacitor, and avoid excessive input voltage ripple. Additionally, consult the datasheet and application notes for guidance on compensation networks and stability analysis.

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LDS3985PU33R Overview

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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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