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LD39115J14R - STMicroelectronics

Description:  Input voltage from 1.5 to 5.5 V  Ultra low dropout voltage (80 mV typ. at 100 mA load)  Very low quiescent current (20 µA typ. at no load, 35 µA typ. at 150 mA load, 1 µA max in off mode)  Very low noise (33 µVRMS from 1 kHz to 100 kHz at VOUT = 1.8 V)  Output voltage tolerance: ± 2.0 % @ 25 °C  150 mA guaranteed output current  Wide range of output voltages available on request: 0.8 V to 4.5 V with 100 mV step  Logic-controlled electronic shutdown  Compatible with ceramic capacitor C

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LD39115J14R - STMicroelectronics - PCB symbol
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LD39115J14R - STMicroelectronics PCB footprint - BGA - BGA - Flip-chip 4
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LD39115J14R Details

  • Manufacturer Part Number:

    LD39115J14R

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Package Description:

    FC-4

  • Country Of Origin:

    Mainland China

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    0

  • Adjustability:

    FIXED

  • Dropout Voltage1-Max:

    0.11 V

  • Dropout Voltage1-Nom:

    0.08 V

  • Input Voltage Absolute-Max:

    6 V

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    1.5 V

  • JESD-30 Code:

    S-PBGA-B4

  • Length:

    0.788 mm

  • Line Regulation-Max:

    0.0004%

  • Number of Functions:

    1

  • Number of Outputs:

    1

  • Number of Terminals:

    4

  • Operating Temperature TJ-Max:

    125 °C

  • Operating Temperature TJ-Min:

    -40 °C

  • Output Current1-Max:

    0.15 A

  • Output Voltage1-Max:

    1.442 V

  • Output Voltage1-Min:

    1.358 V

  • Output Voltage1-Nom:

    1.4 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VFBGA

  • Package Equivalence Code:

    BGA4,2X2,16

  • Package Shape:

    SQUARE

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Packing Method:

    TR

  • Peak Reflow Temperature (Cel):

    NOT SPECIFIED

  • Regulator Type:

    FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR

  • Seated Height-Max:

    0.6 mm

  • Surface Mount:

    YES

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    BOTTOM

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

    NOT SPECIFIED

  • Voltage Tolerance-Max:

    2%

  • Width:

    0.788 mm

LD39115J14R Frequently Asked Questions (FAQs)

  • STMicroelectronics provides a recommended PCB layout in the application note AN5093, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
  • The input capacitor selection depends on the input voltage, output voltage, and desired ripple current. A general guideline is to choose a capacitor with a voltage rating of at least 1.5 times the maximum input voltage, and a capacitance value between 1-10 μF. Consult the datasheet and application notes for more specific guidance.
  • The maximum allowed voltage drop across the internal FETs is not explicitly stated in the datasheet. However, as a general rule, it's recommended to keep the voltage drop below 1V to ensure reliable operation and minimize power losses. Consult with STMicroelectronics support or a qualified engineer for specific guidance.
  • The LD39115J14R is rated for operation up to 150°C, but the device's performance and reliability may degrade at high temperatures. Consult the datasheet and application notes for thermal derating guidelines, and consider using thermal management techniques such as heat sinks or thermal interfaces to ensure reliable operation.
  • To troubleshoot OCP issues, check the input voltage, output current, and sense resistor values. Ensure that the sense resistor is correctly connected and that the OCP threshold is set correctly. Consult the datasheet and application notes for more detailed guidance, and consider using a oscilloscope or logic analyzer to debug the issue.

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LD39115J14R 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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