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LD1117S33 - STMicroelectronics

Description: Voltage Regulator, +3.3V, Bi-Polar, 3 Pin, Plastic, SOT-223

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LD1117S33 - STMicroelectronics - PCB symbol
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PCB Footprints
LD1117S33 - STMicroelectronics PCB footprint - SOT223 (3-Pin) - SOT223 (3-Pin) - SOT-223_1
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LD1117S33 Details

  • Manufacturer Part Number:

    LD1117S33

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SOT-223

  • Package Description:

    SOT-223, 4 PIN

  • Pin Count:

    4

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    6

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    1.2 V

  • Dropout Voltage1-Nom:

    1.1 V

  • Input Voltage Absolute-Max:

    15 V

  • Input Voltage-Max:

    15 V

  • Input Voltage-Min:

    4.75 V

  • JESD-30 Code:

    R-PDSO-G4

  • JESD-609 Code:

    e3

  • Length:

    6.5 mm

  • Line Regulation-Max:

    0.006%

  • Load Regulation-Max:

    0.01%

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature TJ-Max:

    125 °C

  • Output Current1-Max:

    1.3 A

  • Output Voltage1-Max:

    3.365 V

  • Output Voltage1-Min:

    3.235 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOT-223

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    1.9 mm

  • Surface Mount:

    YES

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn) - annealed

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    2.3 mm

  • Terminal Position:

    DUAL

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

    30

  • Voltage Tolerance-Max:

    2%

  • Width:

    3.5 mm

LD1117S33 Frequently Asked Questions (FAQs)

  • The maximum input voltage that can be applied to the LD1117S33 is 15V, although it's recommended to keep it below 12V for optimal performance and to prevent overheating.
  • The LD1117S33 has a maximum operating junction temperature of 125°C, but it's recommended to keep it below 85°C for optimal performance and reliability. Above 85°C, the output voltage may drop and the regulator may enter thermal shutdown.
  • The power dissipation of the LD1117S33 can be calculated using the formula: Pd = (Vin - Vout) x Iout, where Vin is the input voltage, Vout is the output voltage, and Iout is the output current. Make sure to consider the thermal resistance of the package and the PCB layout when calculating the power dissipation.
  • Yes, but with caution. Ceramic capacitors can have a high equivalent series resistance (ESR), which can cause oscillations and instability in the regulator. It's recommended to use a capacitor with a low ESR, such as a tantalum or electrolytic capacitor, or to add a series resistor to the ceramic capacitor to dampen the oscillations.
  • To ensure the stability of the LD1117S33, make sure to follow the recommended PCB layout and component placement guidelines, use a suitable output capacitor, and avoid high-frequency noise on the input and output lines. Also, ensure that the input voltage is within the recommended range and that the output current is within the specified limits.

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LD1117S33 Overview

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To find more CAD model downloads similar to this part, try a partial part number search, like LD111, or try a keyword search, such as Linear Regulator ICs

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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