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LE33CZ - STMicroelectronics

Description: 100mA,3.3V,LDO Voltage Regulator,LE33CZ

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LE33CZ - STMicroelectronics - PCB symbol
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PCB Footprints
LE33CZ - STMicroelectronics PCB footprint - Other - Other - TO127P254X749-3
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LE33CZ Details

  • Manufacturer Part Number:

    LE33CZ

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Not Recommended

  • Part Package Code:

    TO-92

  • Package Description:

    LEAD FREE, TO-92, 3 PIN

  • Pin Count:

    3

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    3

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.5 V

  • Dropout Voltage1-Nom:

    0.2 V

  • Input Voltage Absolute-Max:

    20 V

  • Input Voltage-Max:

    18 V

  • Input Voltage-Min:

    4 V

  • JESD-30 Code:

    O-XBCY-T3

  • JESD-609 Code:

    e3

  • Line Regulation-Max:

    0.02%

  • Load Regulation-Max:

    0.025%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    3

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.1 A

  • Output Voltage1-Max:

    3.432 V

  • Output Voltage1-Min:

    3.168 V

  • Output Voltage1-Nom:

    3.3 V

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    TO-92

  • Package Equivalence Code:

    SIP3,.1,50

  • Package Shape:

    ROUND

  • Package Style:

    CYLINDRICAL

  • Qualification Status:

    Not Qualified

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Surface Mount:

    NO

  • Technology:

    BIPOLAR

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    THROUGH-HOLE

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    BOTTOM

  • Voltage Tolerance-Max:

    4%

LE33CZ Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the LE33CZ application note (AN4101). It's essential to follow this layout to ensure proper thermal management, noise reduction, and optimal performance.
  • The output capacitor selection depends on the output voltage, output current, and ripple requirements. A general guideline is to use a low-ESR capacitor with a value between 10uF to 22uF. Consult the datasheet and application note for more specific guidance.
  • Although the datasheet specifies a maximum input voltage of 15V, it's recommended to limit the input voltage to 12V to ensure reliable operation and prevent overheating.
  • The LE33CZ has a built-in overcurrent protection feature. To implement it, connect a sense resistor (Rs) between the output and GND, and set the overcurrent threshold (Ilim) using an external resistor (Rlim) connected between the ILIM pin and GND. Consult the datasheet for the calculation formula.
  • The thermal derating curve is not explicitly provided in the datasheet. However, STMicroelectronics recommends following the thermal management guidelines in the application note (AN4101) to ensure the device operates within the safe operating area.

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LE33CZ 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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