Details

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BUY A6841SA-T https://www.utsource.net/itm/p/12592692.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.5	-	5.5	V
Output Current	Iout	Continuous	-	1.0	1.5	A
Switching Frequency	fsw	Typical	-	1.2	-	MHz
Efficiency	η	At 3.3V, 1A load	-	88	-	%
Shutdown Current	Ishdn	VEN = 0V	-	1	-	μA
Operating Temperature	Topr	Junction	-40	-	125	°C

Instructions for A6841SA-T

1. Supply Voltage (Vcc):

   • Ensure the supply voltage is within the range of 4.5V to 5.5V for optimal operation.

2. Output Current (Iout):

   • The device can provide a continuous output current up to 1.5A. For best performance, operate within the typical range of 1.0A.

3. Switching Frequency (fsw):

   • The switching frequency is typically set at 1.2 MHz. This helps in minimizing the size of external components like inductors and capacitors.

4. Efficiency (η):

   • The efficiency of the converter is typically 88% when operating at 3.3V with a 1A load. Ensure proper heat dissipation for maintaining this efficiency.

5. Shutdown Current (Ishdn):

   • When the enable pin (VEN) is set to 0V, the shutdown current is approximately 1μA. Use this feature to minimize power consumption during standby.

6. Operating Temperature (Topr):

   • The device is designed to operate within an ambient temperature range from -40°C to +125°C. Ensure adequate cooling if operating near the upper limit.

7. Installation:

   • Place the device on a PCB with appropriate thermal management considerations, such as using a heatsink or ensuring good airflow.

8. Power-Up Sequence:

   • Apply the supply voltage (Vcc) before enabling the device via the VEN pin to ensure stable startup.

9. Protection Features:

   • The device includes protection features like overcurrent protection and thermal shutdown. Regularly monitor these parameters to prevent damage.

10. Layout Considerations:

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

For detailed specifications and additional information, refer to the datasheet provided by the manufacturer.

(For reference only)