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MAX1745EUB+

Specifications

SKU: 11751851

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Parameter Symbol Conditions Min Typical Max Unit
Input Voltage Range VIN Continuous operation 2.7 - 5.5 V
Output Voltage VOUT Fixed - 3.3 - V
Output Current IOUT Continuous - - 1.5 A
Quiescent Current IQ No load, VIN=5V - 200 - μA
Shutdown Current ISD VIN=5V - 1 - μA
Efficiency η At 1.5A, VIN=5V - 90 - %
Dropout Voltage VDROP IOUT=1.5A, VIN=5V - 300 - mV
Operating Temperature TOP - -40 - 85 °C
Storage Temperature TSTORAGE - -65 - 150 °C

Instructions for Use:

  1. Power Supply Connection:

    • Connect the input voltage (VIN) to the VIN pin.
    • Ensure the input voltage is within the specified range of 2.7V to 5.5V.
  2. Output Configuration:

    • The output voltage (VOUT) is fixed at 3.3V. No external resistors are required for this setting.
  3. Load Connection:

    • Connect the load to the VOUT pin. The maximum continuous output current is 1.5A.
  4. Quiescent and Shutdown Current:

    • The quiescent current (IQ) is typically 200μA when no load is connected.
    • To put the device into shutdown mode, pull the SHDN pin low. The shutdown current (ISD) is typically 1μA.
  5. Efficiency:

    • The efficiency (η) is typically 90% at full load (1.5A) with an input voltage of 5V.
  6. Dropout Voltage:

    • The dropout voltage (VDROP) is typically 300mV at full load (1.5A) and an input voltage of 5V.
  7. Temperature Considerations:

    • The operating temperature range (TOP) is from -40°C to 85°C.
    • The storage temperature range (TSTORAGE) is from -65°C to 150°C.
  8. Capacitors:

    • Use appropriate input and output capacitors to ensure stability and reduce ripple. Refer to the datasheet for specific capacitor recommendations.
  9. PCB Layout:

    • Follow the recommended PCB layout guidelines to minimize noise and improve thermal performance. Keep the input and output capacitors close to the respective pins.
  10. Handling:

    • Handle the device with care to avoid damage from electrostatic discharge (ESD). Use proper ESD protection measures during handling and installation.
(For reference only)

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