Instructions for Use

1. Circuit Design:

   • Ensure the input voltage is within the specified range (4.5V to 28V).
   • Choose an appropriate inductor and output capacitor based on the desired output voltage and current.
   • Connect the input and output capacitors as close as possible to the device to minimize noise and improve stability.

2. Output Voltage Setting:

   • The output voltage can be set using a resistor divider network connected to the FB (feedback) pin.
   • Calculate the resistor values using the formula: ( V_ = V_ left(1 + fracright) ), where ( V_ ) is typically 0.8V.

3. Thermal Management:

   • Place the device on a PCB with adequate copper area for heat dissipation.
   • Consider adding a heatsink if the device will operate at high power levels or in high ambient temperatures.

4. Layout Considerations:

   • Keep the ground plane solid and continuous under the device.
   • Minimize trace lengths for high-frequency signals, especially for the feedback loop and switching node.
   • Use multiple vias to connect the ground planes and reduce inductance.

5. Power-Up Sequence:

   • Ensure the input voltage rises slowly and smoothly to avoid inrush currents.
   • The device will start switching once the input voltage exceeds the UVLO threshold.

6. Protection:

   • The device includes overcurrent protection, thermal shutdown, and UVLO to protect against common fault conditions.
   • If the device shuts down due to overcurrent or thermal issues, it will automatically restart once the conditions return to normal.

7. Testing:

   • Verify the output voltage and current using a multimeter and load tester.
   • Check the ripple and transient response using an oscilloscope to ensure stable operation.

8. Storage:

   • Store the device in a dry, cool place away from direct sunlight.
   • Follow ESD handling guidelines to prevent damage during handling and assembly.