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LR645LG-G - Microchip

Description: Microchip LR645LG-G, Single Linear Voltage Regulator, 30mA Adjustable 9 → 11.5 V, 8-Pin SOIC

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LR645LG-G - Microchip - PCB symbol
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LR645LG-G - Microchip PCB footprint - Small Outline Packages - Small Outline Packages - LR645LG-G
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LR645LG-G Details

  • Manufacturer Part Number:

    LR645LG-G

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    SOIC-8

  • Pin Count:

    8

  • Manufacturer Package Code:

    SOIC-8

  • Country Of Origin:

    Thailand

  • ECCN Code:

    EAR99

  • HTS Code:

    8541.29.00.95

  • Factory Lead Time:

    6 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    8

  • Adjustability:

    ADJUSTABLE

  • Dropout Voltage1-Nom:

    5.7 V

  • JESD-30 Code:

    R-PDSO-G8

  • JESD-609 Code:

    e3

  • Length:

    4.9 mm

  • Load Regulation-Max(%):

    5%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    8

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.15 A

  • Output Voltage1-Max:

    12 V

  • Output Voltage1-Min:

    8 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP8,.24

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    ADJUSTABLE POSITIVE SINGLE OUTPUT STANDARD REGULATOR

  • Seated Height-Max:

    1.75 mm

  • Surface Mount:

    YES

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

  • Width:

    3.9 mm

LR645LG-G Frequently Asked Questions (FAQs)

  • A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the RF traces as short as possible and use a 50-ohm impedance-controlled line to the antenna.
  • Implement a robust error correction mechanism, such as FEC (Forward Error Correction) or ARQ (Automatic Repeat Request), and consider using a spread spectrum modulation technique like FHSS (Frequency Hopping Spread Spectrum) or DSSS (Direct Sequence Spread Spectrum).
  • The maximum transmission power is limited by regulatory bodies such as the FCC (Federal Communications Commission) in the US. For the LR645LG-G, the maximum transmission power is +20 dBm (100 mW) in the 868 MHz band and +14 dBm (25 mW) in the 915 MHz band.
  • Use the device's low-power modes (e.g., sleep mode, standby mode) and optimize the transmission protocol to minimize the duty cycle. Consider using a low-power MCU and optimizing the system's overall power budget.
  • A quarter-wave monopole antenna or a dipole antenna with a 50-ohm impedance is recommended. The antenna should be designed to operate at the desired frequency band (868 MHz or 915 MHz) and should be matched to the device's output impedance.

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LR645LG-G Overview

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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