Details

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BUY STRX6768 https://www.utsource.net/itm/p/12607810.html

Parameter	Description	Value	Unit
Part Number	Integrated Circuit (IC)	STRX6768	-
Function	Step-Up DC-DC Converter	-	-
Input Voltage	Operating Range	2.7 to 5.5	V
Output Voltage	Adjustable Range	3.0 to 12.0	V
Output Current	Maximum Continuous	1.5	A
Switching Frequency	Fixed	1.2	MHz
Efficiency	Typical at 5V input, 12V output, 500mA load	85	%
Quiescent Current	Shutdown Mode	0.1	渭A
Operating Temperature	Storage and Operation	-40 to 125	掳C
Package	Type	QFN-16	-
Pin Count	-	16	-

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply within the specified range of 2.7V to 5.5V.
   • Ensure that the ground (GND) is connected to the common ground of the system.

2. Output Configuration:

   • Set the desired output voltage by adjusting the feedback resistor network. The output voltage can be calculated using the formula: [ V_ = V_ left(1 + fracright) ] where ( V_ ) is typically 1.25V.

3. Inductor Selection:

   • Choose an inductor with a value between 1.0渭H and 4.7渭H, depending on the required output current and efficiency. Refer to the datasheet for recommended inductor values.

4. Capacitor Selection:

   • Use ceramic capacitors with low ESR for both input and output capacitors. Typical values are 10渭F for the input capacitor and 22渭F for the output capacitor.

5. Thermal Considerations:

   • Ensure proper heat dissipation by providing adequate PCB copper area or heatsink if operating at high currents.

6. Shutdown Function:

   • To disable the converter, pull the SHDN pin low. The quiescent current will drop to 0.1渭A in shutdown mode.

7. Layout Recommendations:

   • Place the input and output capacitors as close as possible to the IC.
   • Keep the traces for high-frequency signals (e.g., switch node) short and direct to minimize noise.

8. Testing and Troubleshooting:

   • Verify the input and output voltages with a multimeter.
   • Check the ripple on the output voltage using an oscilloscope to ensure stable operation.

For detailed application circuits and further information, refer to the STRX6768 datasheet.

(For reference only)