RT6256CGQUF

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Instructions for RT6256CGQUF:

1. Input Voltage Selection:

   • Ensure the input voltage is within the range of 4.5V to 28V to avoid damage or malfunction.

2. Output Voltage Adjustment:

   • The output voltage can be adjusted from 0.8V to 18V using external resistors. Refer to the datasheet for the specific resistor values required.

3. Thermal Considerations:

   • Place the device in an area with adequate airflow and consider heatsinking if continuous high current operation is expected.

4. Capacitor Selection:

   • Use low ESR ceramic capacitors for input and output filtering. Typical values are 10μF on the input and 10μF on the output.

5. PCB Layout:

   • Keep the input and output capacitor leads short to minimize noise. Ground planes should be used to enhance thermal performance and reduce noise.

6. Quiescent Current:

   • Be aware that the quiescent current is 35μA at typical operating conditions, which may impact battery life in portable applications.

7. Dropout Voltage:

   • At full load (500mA), expect a dropout voltage around 600mV. Ensure the input voltage exceeds the desired output voltage by at least this amount.

8. Operating Temperature Range:

   • The device operates reliably between -40°C and +85°C. Avoid exceeding these temperatures to prevent failure.

9. Load and Line Regulation:

   • For optimal performance, ensure load regulation does not exceed 0.5% and line regulation stays below 0.05%.

10. Power Supply Rejection Ratio (PSRR):

    • At 100Hz, the PSRR is typically 70dB, indicating good rejection of ripple from the input supply.