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UC2578DP - Texas Instruments

Description: Switching Controllers Buck Pulse Width Modulator

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PCB Footprints
UC2578DP - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - D (R-PDSO-G16)
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3D Models
UC2578DP - Texas Instruments  - 3D model - Small Outline Packages - D (R-PDSO-G16)
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UC2578DP Details

  • Manufacturer Part Number:

    UC2578DP

  • Brand Name:

    Texas Instruments

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Obsolete

  • Part Package Code:

    SOIC

  • Package Description:

    SOIC-16

  • Pin Count:

    16

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.60

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    0

  • Analog IC - Other Type:

    SWITCHING CONTROLLER

  • Control Mode:

    VOLTAGE-MODE

  • Control Technique:

    PULSE WIDTH MODULATION

  • Input Voltage-Max:

    72 V

  • Input Voltage-Min:

    11 V

  • Input Voltage-Nom:

    14 V

  • JESD-30 Code:

    R-PDSO-G16

  • JESD-609 Code:

    e4

  • Length:

    9.89 mm

  • Moisture Sensitivity Level:

    2

  • Number of Functions:

    1

  • Number of Terminals:

    16

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • Output Current-Max:

    0.8 A

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SOP

  • Package Equivalence Code:

    SOP16,.25

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Seated Height-Max:

    1.75 mm

  • Supply Current-Max (Isup):

    14 mA

  • Surface Mount:

    YES

  • Switcher Configuration:

    BUCK

  • Switching Frequency-Max:

    120 kHz

  • Technology:

    BIPOLAR

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    NICKEL PALLADIUM GOLD

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    1.27 mm

  • Terminal Position:

    DUAL

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

    30

  • Width:

    3.9 mm

UC2578DP Frequently Asked Questions (FAQs)

  • Texas Instruments recommends a 4-layer PCB with a solid ground plane, and a separate power plane for the input and output stages. Keep the input and output traces short and away from each other to minimize noise and EMI.
  • Use a high-quality input capacitor with low ESR, and ensure the input voltage is within the recommended range (7V to 40V). Also, add a voltage divider or a voltage regulator to regulate the input voltage if necessary.
  • The UC2578DP can deliver up to 1.5A of output current, but this depends on the input voltage, output voltage, and the thermal design of the PCB. Ensure proper heat sinking and thermal management to achieve the maximum output current.
  • Use the feedback resistors (R1 and R2) to set the output voltage. The ratio of R1 to R2 determines the output voltage. For example, for a 5V output, use R1 = 2.2kΩ and R2 = 1kΩ. Refer to the datasheet for the calculation formula.
  • The EN pin is used to enable or disable the UC2578DP. Connect the EN pin to a logic high (VCC) to enable the device, and connect it to a logic low (GND) to disable it. Use a pull-up resistor to ensure the EN pin is not floating.

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UC2578DP Overview

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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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Part Image UC2578DPTRG4 Texas Instruments

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Part Image UC2578DPG4 Texas Instruments

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Part Image UC3578DPTR Texas Instruments

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