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LD49100PU18RY - STMicroelectronics

Description: 1 A, low quiescent current, low-noise voltage regulator with soft start - Automotive grade

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LD49100PU18RY - STMicroelectronics - PCB symbol
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PCB Footprints
LD49100PU18RY - STMicroelectronics PCB footprint - Small Outline No-lead - Small Outline No-lead - DFN6 (3x3) package outline-A
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LD49100PU18RY - STMicroelectronics - 3D model - Small Outline No-lead - DFN6 (3x3) package outline-A
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LD49100PU18RY Details

  • Manufacturer Part Number:

    LD49100PU18RY

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    DFN-6

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Factory Lead Time:

    16 Weeks

  • Date Of Intro:

    2020-09-01

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    8

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.4 V

  • Dropout Voltage1-Nom:

    0.2 V

  • Input Voltage Absolute-Max:

    7 V

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.8 V

  • JESD-30 Code:

    S-PDSO-N6

  • Length:

    3 mm

  • Line Regulation-Max:

    0.000486%

  • Load Regulation-Max:

    0.01782%

  • 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:

    1 A

  • Output Voltage1-Max:

    1.854 V

  • Output Voltage1-Min:

    1.746 V

  • Output Voltage1-Nom:

    1.8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    HVSON

  • Package Equivalence Code:

    SOLCC6,.12,38

  • Package Shape:

    SQUARE

  • Package Style:

    SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

  • Packing Method:

    TR, 13 INCH

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Screening Level:

    AEC-Q100

  • Seated Height-Max:

    0.9 mm

  • Surface Mount:

    YES

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.95 mm

  • Terminal Position:

    DUAL

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

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    3%

  • Width:

    3 mm

LD49100PU18RY Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN4923, which includes guidelines for thermal vias, copper thickness, and component placement to ensure optimal thermal performance.
  • The input capacitor selection depends on the input voltage, current, and frequency. A general guideline is to choose a capacitor with a capacitance value between 10uF to 22uF, and a voltage rating of at least 1.5 times the input voltage. Additionally, consider the capacitor's ESR, ripple current, and temperature rating.
  • The maximum allowed voltage drop across the internal FETs is not explicitly stated in the datasheet. However, as a general guideline, it's recommended to keep the voltage drop below 1V to ensure reliable operation and minimize power losses.
  • The LD49100PU18RY is rated for operation up to 150°C. However, it's essential to consider the device's power dissipation, thermal resistance, and the PCB's thermal design to ensure reliable operation in high-temperature environments.
  • To troubleshoot overcurrent protection issues, check the input voltage, output current, and sense resistor values. Ensure that the sense resistor is correctly connected and that the output current is within the specified limits. Also, verify that the overcurrent protection threshold is set correctly.

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LD49100PU18RY 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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