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78M08

Specifications

SKU: 12535077

BUY 78M08 https://www.utsource.net/itm/p/12535077.html

Parameter Symbol Min Typical Max Unit
Input Voltage VI 10 - 30 V
Output Voltage VO - 8.0 - V
Output Current (Max) IO - 500 - mA
Dropout Voltage VD - 2.0 - V
Quiescent Current IQ - 5.0 - mA
Thermal Resistance (θJA) θJA - 65 - °C/W
Operating Temperature Toper -40 - 125 °C
Storage Temperature Tstg -65 - 150 °C

Instructions for Using the 78M08:

  1. Input Voltage:

    • Ensure the input voltage is within the range of 10V to 30V.
    • Use appropriate capacitors (typically 0.33 μF and 0.1 μF) on the input and output to stabilize the regulator.
  2. Output Voltage:

    • The 78M08 provides a fixed output voltage of 8.0V.
    • No external components are required to set the output voltage.
  3. Output Current:

    • The maximum continuous output current is 500 mA.
    • For higher current requirements, consider using a heat sink or a different regulator.
  4. Dropout Voltage:

    • The dropout voltage is approximately 2.0V.
    • Ensure the input voltage is at least 2.0V higher than the output voltage to maintain regulation.
  5. Quiescent Current:

    • The quiescent current is typically 5.0 mA.
    • This is the current consumed by the regulator itself when no load is applied.
  6. Thermal Management:

    • The thermal resistance (θJA) is 65°C/W.
    • Use a heat sink if the power dissipation exceeds safe limits to prevent overheating.
  7. Operating Temperature:

    • The operating temperature range is from -40°C to 125°C.
    • Ensure the ambient temperature is within this range to avoid damage.
  8. Storage Temperature:

    • The storage temperature range is from -65°C to 150°C.
    • Store the device in a dry, cool place to ensure long-term reliability.
  9. Mounting:

    • Mount the 78M08 with adequate clearance from other components to allow for proper heat dissipation.
    • Use a thermal compound between the regulator and the heat sink for better thermal conductivity.
  10. Testing:

    • Before finalizing the design, test the regulator under various load conditions to ensure stable operation.
    • Monitor the temperature of the regulator during testing to ensure it does not exceed the maximum operating temperature.
(For reference only)

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