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TL3845BDRG4-8

Specifications

SKU: 9460278

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Parameter Symbol Min Typical Max Unit
Input Voltage VIN 2.7 - 5.5 V
Output Voltage VOUT 1.2 - 5.0 V
Output Current IOUT - 800 1000 mA
Quiescent Current IQ - 1.2 - mA
Dropout Voltage VDROPOUT - 0.3 - V
Load Regulation - - 0.5 - %
Line Regulation - - 0.5 - %
Power Good Threshold VPG 1.08 - 1.32 V
Enable Input High Voltage VENH 1.2 - 5.5 V
Enable Input Low Voltage VENL 0 - 0.8 V
Shutdown Current ISD - 1.0 - μA
Operating Temperature TOPR -40 - 125 °C
Storage Temperature TSTG -65 - 150 °C

Instructions for Using TL3845BDRG4-8

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the range of 2.7V to 5.5V.
    • Use appropriate decoupling capacitors (e.g., 10μF ceramic) close to the input pin to filter noise and stabilize the supply.
  2. Output Voltage (VOUT):

    • The output voltage can be adjusted between 1.2V and 5.0V using external resistors.
    • Refer to the datasheet for the specific resistor values required for the desired output voltage.
  3. Output Current (IOUT):

    • The regulator can provide up to 1000mA, but it is typically designed to handle 800mA continuously.
    • Ensure adequate heat dissipation if operating at higher current levels.
  4. Quiescent Current (IQ):

    • The quiescent current is typically 1.2mA. This is the current consumed by the regulator when no load is present.
  5. Dropout Voltage (VDROPOUT):

    • The dropout voltage is typically 0.3V. This is the minimum difference between the input and output voltages required to maintain regulation.
  6. Load Regulation:

    • The load regulation is typically 0.5%, indicating the change in output voltage due to changes in load current.
  7. Line Regulation:

    • The line regulation is typically 0.5%, indicating the change in output voltage due to changes in input voltage.
  8. Power Good Threshold (VPG):

    • The power good threshold is between 1.08V and 1.32V. The power good signal will indicate when the output voltage is within this range.
  9. Enable Input (VEN):

    • The enable input can be used to turn the regulator on or off.
    • Set VEN to a high voltage (1.2V to 5.5V) to enable the regulator.
    • Set VEN to a low voltage (0V to 0.8V) to disable the regulator.
  10. Shutdown Current (ISD):

    • When the regulator is disabled, the shutdown current is typically 1.0μA.
  11. Operating Temperature (TOPR):

    • The operating temperature range is from -40°C to 125°C. Ensure the regulator is not subjected to temperatures outside this range.
  12. Storage Temperature (TSTG):

    • The storage temperature range is from -65°C to 150°C. Store the regulator in a dry and temperature-controlled environment.

Additional Notes:

  • Always refer to the specific datasheet for detailed information and application notes.
  • Use proper PCB layout techniques to minimize noise and ensure stable operation.
  • Consider thermal management solutions if operating at high current or in high ambient temperatures.
(For reference only)

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