Details

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BUY BU2508DX https://www.utsource.net/itm/p/12609002.html

Parameter	Symbol	Min	Typ	Max	Unit
Supply Voltage	Vcc	4.5	5.0	5.5	V
Output Voltage	Vo	-	12.0	-	V
Output Current	Io	-	1.5	-	A
Switching Frequency	fsw	1.0	1.5	2.0	MHz
Efficiency	畏	-	85	-	%
Quiescent Current	Iq	-	3.0	-	mA
Start-up Time	tstart	-	1.0	-	ms
Shutdown Current	Ishutdown	-	0.1	-	渭A
Thermal Shutdown	TSD	160	-	-	掳C
Operating Temperature	Topr	-40	-	85	掳C
Storage Temperature	Tstg	-55	-	150	掳C

Instructions for Use

1. Supply Voltage (Vcc):

   • Ensure the supply voltage is within the range of 4.5V to 5.5V.
   • Using a voltage outside this range can damage the device.

2. Output Voltage (Vo):

   • The output voltage is typically 12V. Verify the output voltage using a multimeter before connecting any load.

3. Output Current (Io):

   • The maximum continuous output current is 1.5A. Exceeding this limit can cause overheating and potential damage.

4. Switching Frequency (fsw):

   • The switching frequency ranges from 1.0MHz to 2.0MHz. This parameter affects the efficiency and performance of the converter.

5. Efficiency (畏):

   • The typical efficiency is 85%. Ensure proper heat dissipation to maintain optimal performance.

6. Quiescent Current (Iq):

   • The quiescent current is typically 3.0mA. This is the current consumed by the device when no load is connected.

7. Start-up Time (tstart):

   • The start-up time is typically 1.0ms. The device will take this time to stabilize the output voltage after power is applied.

8. Shutdown Current (Ishutdown):

   • The shutdown current is typically 0.1渭A. This is the current consumed by the device when it is in the shutdown mode.

9. Thermal Shutdown (TSD):

   • The device will automatically shut down if the temperature exceeds 160掳C to prevent damage.

10. Operating Temperature (Topr):

    • The operating temperature range is from -40掳C to 85掳C. Ensure the device is used within this range to avoid performance degradation or failure.

11. Storage Temperature (Tstg):

    • The storage temperature range is from -55掳C to 150掳C. Store the device in a dry, cool place to ensure longevity.

12. Mounting:

    • Mount the device on a PCB with adequate thermal management, such as a heatsink or thermal pad, to ensure efficient heat dissipation.

13. Layout Considerations:

    • Keep the input and output capacitors close to the device to minimize noise and improve stability.
    • Use short and wide traces for power connections to reduce parasitic inductance and resistance.

14. Testing:

    • Before finalizing the design, test the device under various conditions, including different load currents and temperatures, to ensure reliable operation.

(For reference only)