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REG103FA-AKTTT

Specifications

SKU: 6458804

BUY REG103FA-AKTTT https://www.utsource.net/itm/p/6458804.html
500mA Low Dropout Regulator
Parameter Symbol Conditions Min Typ Max Unit
Input Voltage VIN Continuous 2.7 - 5.5 V
Output Voltage VOUT Adjustable 0.8 - 3.3 V
Output Current IOUT Continuous - 300 - mA
Quiescent Current IQ VIN = 5V, VOUT = 3.3V, IOUT = 0mA - 1.0 - μA
Dropout Voltage VDROPOUT IOUT = 300mA, VOUT = 3.3V - 0.4 - V
Load Regulation ΔVOUT/ΔIOUT IOUT = 0 to 300mA - 0.1 - %
Line Regulation ΔVOUT/ΔVIN VIN = 2.7 to 5.5V, IOUT = 300mA - 0.1 - %
Thermal Shutdown Temperature TSD - - 160 - °C
Operating Temperature Range TOPR - -40 - 85 °C
Storage Temperature Range TSTG - -65 - 150 °C

Instructions for Use:

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the range of 2.7V to 5.5V.
    • Avoid exceeding these limits to prevent damage to the regulator.
  2. Output Voltage (VOUT):

    • The output voltage can be adjusted between 0.8V and 3.3V.
    • Use the external resistor divider to set the desired output voltage.
  3. Output Current (IOUT):

    • The regulator can supply up to 300mA continuously.
    • Ensure that the load does not exceed this current limit to avoid overheating.
  4. Quiescent Current (IQ):

    • The quiescent current is typically 1.0μA at 5V input and 3.3V output with no load.
    • This low quiescent current makes the regulator suitable for battery-powered applications.
  5. Dropout Voltage (VDROPOUT):

    • The dropout voltage is typically 0.4V at 300mA output current.
    • Ensure that the input voltage is at least 0.4V higher than the output voltage to maintain regulation.
  6. Load Regulation:

    • The load regulation is typically 0.1% over the load range from 0 to 300mA.
    • This ensures stable output voltage under varying load conditions.
  7. Line Regulation:

    • The line regulation is typically 0.1% over the input voltage range from 2.7V to 5.5V.
    • This ensures stable output voltage under varying input conditions.
  8. Thermal Shutdown:

    • The regulator will shut down if the temperature exceeds 160°C to protect against overheating.
    • Ensure adequate heat dissipation, especially under high load conditions.
  9. Operating Temperature Range:

    • The regulator operates reliably within the temperature range of -40°C to 85°C.
    • Avoid operating outside this range to prevent performance degradation or damage.
  10. Storage Temperature Range:

    • The regulator can be stored in temperatures ranging from -65°C to 150°C.
    • Ensure proper storage conditions to maintain long-term reliability.

Additional Notes:

  • Capacitors:

    • Use a 1μF ceramic capacitor on the input side and a 1μF ceramic capacitor on the output side for stability.
    • These capacitors should be placed as close as possible to the regulator to minimize parasitic inductance.
  • PCB Layout:

    • Ensure good thermal management by providing a thermal pad or heatsink if necessary.
    • Follow recommended PCB layout guidelines to optimize performance and reliability.
(For reference only)

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