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LMR14020SDDAR

Specifications

SKU: 12541875

BUY LMR14020SDDAR https://www.utsource.net/itm/p/12541875.html

Parameter Symbol Min Typ Max Unit Conditions
Input Voltage VIN 3.0 - 60 V
Output Voltage VOUT - - 50 V Adjustable
Output Current IOUT - - 2 A Continuous
Quiescent Current IQ - 70 - μA No load, VIN = 12V
Dropout Voltage VDROPOUT - 1.2 - V IOUT = 1A
Load Regulation - - 0.1 - % IOUT: 0mA to 2A
Line Regulation - - 0.01 - %/V VIN: 3V to 60V
PSRR (Power Supply Rejection Ratio) - - 70 - dB f = 1kHz, VIN = 12V, IOUT = 100mA
Operating Temperature TJ -40 - 125 °C Junction temperature
Storage Temperature TSTG -65 - 150 °C

Instructions for Use:

  1. Input Voltage (VIN):

    • Ensure the input voltage is within the range of 3.0V to 60V.
    • The input voltage should be stable and free from excessive noise.
  2. Output Voltage (VOUT):

    • The output voltage can be adjusted up to 50V.
    • Use an external resistor network to set the desired output voltage according to the datasheet formula.
  3. Output Current (IOUT):

    • The device can provide a continuous output current of up to 2A.
    • For higher current applications, ensure proper heat dissipation and thermal management.
  4. Quiescent Current (IQ):

    • The quiescent current is typically 70μA when there is no load and the input voltage is 12V.
    • This low quiescent current helps in reducing power consumption in low-power systems.
  5. Dropout Voltage (VDROPOUT):

    • The dropout voltage is typically 1.2V at an output current of 1A.
    • Ensure that the input voltage is at least 1.2V higher than the output voltage to maintain regulation.
  6. Load Regulation:

    • The load regulation is 0.1% over the output current range from 0mA to 2A.
    • This ensures minimal changes in output voltage with varying load conditions.
  7. Line Regulation:

    • The line regulation is 0.01%/V over the input voltage range from 3V to 60V.
    • This ensures minimal changes in output voltage with varying input voltage.
  8. PSRR (Power Supply Rejection Ratio):

    • The PSRR is 70dB at 1kHz, which helps in rejecting input voltage variations and noise.
    • This is particularly important in noisy environments or where the input voltage may fluctuate.
  9. Operating Temperature (TJ):

    • The device can operate at junction temperatures ranging from -40°C to 125°C.
    • Ensure proper heat sinking if operating at high temperatures or high output currents.
  10. Storage Temperature (TSTG):

    • The device can be stored at temperatures ranging from -65°C to 150°C.
    • Store the device in a dry, cool place to avoid damage.

Additional Notes:

  • Always refer to the specific application notes and datasheet for detailed information and recommended circuit designs.
  • Ensure all components used in the circuit are rated appropriately for the operating conditions.
  • Proper PCB layout and component selection are crucial for optimal performance and reliability.
(For reference only)

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