Details

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BUY TPS55065Q https://www.utsource.net/itm/p/12593628.html

Parameter	Symbol	Min	Typical	Max	Unit	Description
Input Voltage	VIN	2.9	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	-	1.8, 3.3	-	V	Adjustable output voltages (typical values)
Output Current	IOUT	-	-	1.5	A	Maximum continuous output current
Switching Frequency	fSW	-	2.1	-	MHz	Fixed switching frequency
Efficiency	畏	-	90	-	%	Typical efficiency at nominal conditions
Quiescent Current	IQ	-	27	-	渭A	Quiescent current at no load
Shutdown Current	ISD	-	0.2	-	渭A	Shutdown current
Thermal Shutdown Temperature	TSD	-	160	-	掳C	Thermal shutdown temperature
Operating Junction Temperature	TJ	-20	-	125	掳C	Operating junction temperature range
Storage Temperature	TSTG	-40	-	125	掳C	Storage temperature range

Instructions for Using TPS55065Q

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply.
   • Ensure the input voltage is within the specified range (2.9V to 5.5V).

2. Output Configuration:

   • Set the output voltage (VOUT) using external resistors. The typical values are 1.8V and 3.3V.
   • Use the formula provided in the datasheet to calculate the resistor values.

3. Inductor Selection:

   • Choose an inductor with a value that matches the recommended inductance for the desired output current and switching frequency.
   • Ensure the inductor can handle the maximum output current (1.5A).

4. Capacitor Selection:

   • Select input and output capacitors based on the recommended values in the datasheet.
   • Use low ESR capacitors for better performance and stability.

5. Thermal Management:

   • Ensure proper thermal management to keep the junction temperature within the operating range (-20掳C to 125掳C).
   • Use a heatsink or thermal pad if necessary.

6. Shutdown Function:

   • To shut down the device, pull the SHDN pin low.
   • The shutdown current is typically 0.2渭A.

7. Layout Considerations:

   • Follow the PCB layout guidelines provided in the datasheet to minimize noise and ensure stable operation.
   • Keep the power and ground traces short and wide to reduce inductance.

8. Testing and Verification:

   • After assembly, test the output voltage and current to ensure they meet the design specifications.
   • Monitor the temperature and efficiency during operation to ensure the device is functioning correctly.

For detailed information, refer to the TPS55065Q datasheet and application notes.

(For reference only)