Details

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BUY STK3062III https://www.utsource.net/itm/p/12376114.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	Vcc	4.5	5	5.5	V	Operating voltage range
Output Current (Max)	Iout	-	1.5	2	A	Maximum continuous output current
Efficiency	η	70	85	90	%	Typical efficiency at full load
Switching Frequency	fsw	50	100	150	kHz	Switching frequency of the internal oscillator
Quiescent Current	Iq	1	2	3	mA	Quiescent current at no load
Dropout Voltage	Vdo	0.3	0.5	1	V	Dropout voltage at maximum load
Thermal Shutdown	TSD	160	-	-	°C	Temperature at which thermal shutdown is activated
Protection Features	-	-	-	-	-	Overcurrent protection, short-circuit protection, thermal shutdown
Operating Temperature	Topr	-40	-	85	°C	Operating temperature range
Storage Temperature	Tstg	-65	-	150	°C	Storage temperature range

Instructions for Use

1. Supply Voltage:

   • Ensure the supply voltage is within the specified range (4.5V to 5.5V) to avoid damage to the device.

2. Output Current:

   • The device can provide up to 2A of continuous output current. For higher currents, consider additional cooling or a different component.

3. Efficiency:

   • The efficiency is typically around 85%, but it can vary depending on the load and input voltage. Optimize the design for best performance.

4. Switching Frequency:

   • The switching frequency is adjustable between 50kHz and 150kHz. Set the frequency based on the application requirements and external components.

5. Quiescent Current:

   • The quiescent current is minimal, typically around 2mA, which helps in reducing power consumption in low-power applications.

6. Dropout Voltage:

   • The dropout voltage is relatively low, ensuring efficient operation even at high loads. Ensure the input voltage is always above the dropout voltage plus the desired output voltage.

7. Thermal Shutdown:

   • The device will automatically shut down if the junction temperature exceeds 160°C. Design the PCB with adequate heat dissipation to prevent this.

8. Protection Features:

   • The STK3062III includes overcurrent protection, short-circuit protection, and thermal shutdown to protect the device from damage under fault conditions.

9. Operating Temperature:

   • The device operates reliably within the temperature range of -40°C to 85°C. Ensure the ambient temperature is within these limits.

10. Storage Temperature:

    • Store the device in a dry environment with temperatures ranging from -65°C to 150°C to maintain its reliability.

11. PCB Layout:

    • Use a good PCB layout practice to minimize noise and improve thermal performance. Place the device close to the load and use wide traces for power and ground connections.

12. Capacitors:

    • Use appropriate input and output capacitors to stabilize the voltage and filter out noise. Follow the datasheet recommendations for capacitor values and types.

13. Inductor Selection:

    • Choose an inductor that matches the switching frequency and current requirements. Ensure the inductor has a low DC resistance to minimize power loss.

14. Testing:

    • Test the circuit under various load conditions to ensure stable operation and verify the performance parameters.

By following these guidelines, you can ensure reliable and efficient operation of the STK3062III in your application.

(For reference only)