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CH8398

Specifications

SKU: 12494036

BUY CH8398 https://www.utsource.net/itm/p/12494036.html

Parameter Symbol Conditions Min Typical Max Unit
Input Voltage V_IN - 2.7 - 5.5 V
Output Voltage V_OUT - 1.8 - 5.0 V
Output Current I_OUT - - 3.0 3.0 A
Quiescent Current I_Q V_OUT = 3.3V - 40 - μA
Shutdown Current I_SHDN V_IN = 5V - 1 - μA
Efficiency η V_IN = 5V, I_OUT = 3A - 92 - %
Operating Temperature T_OP - -40 - 85 °C
Storage Temperature T_STG - -40 - 85 °C

Instructions for Use

  1. Input Voltage (V_IN):

    • Ensure the input voltage is within the range of 2.7V to 5.5V. Exceeding this range can damage the device.
  2. Output Voltage (V_OUT):

    • The output voltage can be set between 1.8V and 5.0V. Use an external resistor network to adjust the output voltage according to the datasheet specifications.
  3. Output Current (I_OUT):

    • The maximum continuous output current is 3.0A. Do not exceed this limit to avoid overheating or damage.
  4. Quiescent Current (I_Q):

    • The quiescent current is typically 40μA when the output voltage is set to 3.3V. This value helps in assessing the power consumption during normal operation.
  5. Shutdown Current (I_SHDN):

    • When the shutdown pin is activated, the device draws a typical current of 1μA. Use this feature to minimize power consumption when the device is not in use.
  6. Efficiency (η):

    • The efficiency is typically 92% at an input voltage of 5V and an output current of 3A. Higher efficiency means less power loss and better performance.
  7. Operating Temperature (T_OP):

    • The device operates reliably within the temperature range of -40°C to 85°C. Avoid operating the device outside this range to prevent performance degradation or failure.
  8. Storage Temperature (T_STG):

    • Store the device in an environment with temperatures ranging from -40°C to 85°C to ensure long-term reliability and performance.

Additional Notes

  • Always refer to the specific application notes and datasheets provided by the manufacturer for detailed information and recommended circuit designs.
  • Ensure proper heat dissipation if the device is operated at high currents or in high ambient temperatures.
  • Use appropriate decoupling capacitors on both the input and output sides to maintain stability and reduce noise.
(For reference only)

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