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LMR70503TM/NOPB - Texas Instruments

Description: SIMPLE SWITCHER® 2.8V to 5.5V, 300mA Buck/Boost Negative Output Voltage Regulator

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LMR70503TM/NOPB - Texas Instruments PCB footprint - BGA - BGA - YFX0008xxx
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LMR70503TM/NOPB - Texas Instruments  - 3D model - BGA - YFX0008xxx
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LMR70503TM/NOPB Details

  • Manufacturer Part Number:

    LMR70503TM/NOPB

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Package Description:

    VFBGA,

  • Reach Compliance Code:

    Compliant

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.90

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Additional Feature:

    ADJUSTABLE OUTPUT MODE FROM -0.9 TO -5.5V; SWITCHING FREQ MIN IS 500KHZ

  • Analog IC - Other Type:

    SWITCHING REGULATOR

  • Control Mode:

    CURRENT-MODE

  • Input Voltage-Max:

    5.5 V

  • Input Voltage-Min:

    2.8 V

  • Input Voltage-Nom:

    3.3 V

  • JESD-30 Code:

    R-PBGA-B8

  • JESD-609 Code:

    e1

  • Length:

    1.61 mm

  • Moisture Sensitivity Level:

    1

  • Number of Functions:

    1

  • Number of Terminals:

    8

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.37 A

  • Output Voltage-Max:

    -0.9 V

  • Output Voltage-Min:

    -5.5 V

  • Output Voltage-Nom:

    -5 V

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    VFBGA

  • Package Shape:

    RECTANGULAR

  • Package Style:

    GRID ARRAY, VERY THIN PROFILE, FINE PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Seated Height-Max:

    0.675 mm

  • Surface Mount:

    YES

  • Switcher Configuration:

    INVERTER

  • Switching Frequency-Max:

    1000 kHz

  • Technology:

    BICMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Tin/Silver/Copper (Sn/Ag/Cu)

  • Terminal Form:

    BALL

  • Terminal Pitch:

    0.4 mm

  • Terminal Position:

    BOTTOM

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

    30

  • Width:

    0.825 mm

LMR70503TM/NOPB Frequently Asked Questions (FAQs)

  • A good thermal design should include a solid ground plane, thermal vias under the device, and a heat sink if possible. The datasheet provides some guidelines, but a more detailed application note (SLUA477) is available from TI.
  • To ensure stability, follow the recommended output capacitor selection guidelines, use a low-ESR capacitor, and avoid using ceramic capacitors with high ESL. Also, ensure the input capacitor is properly sized and placed close to the device.
  • The absolute maximum input voltage rating is 26V, but the recommended maximum operating input voltage is 20V to ensure reliable operation and minimize the risk of damage.
  • Yes, the LMR70503 is suitable for powering microcontrollers. However, ensure the output voltage and current capabilities meet the microcontroller's requirements, and consider the power-up and power-down sequencing if necessary.
  • Power dissipation (PD) can be calculated using the formula: PD = (VIN - VOUT) x IOUT. Ensure the calculated PD is within the device's thermal rating to prevent overheating.

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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