Details

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BUY ZXCL280E5TA https://www.utsource.net/itm/p/11249212.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	4.75	-	5.25	V
Output Voltage	VOUT	3.3	-	3.3	V
Output Current	IOUT	-	800	1000	mA
Efficiency	η	-	90	-	%
Switching Frequency	fSW	1.2	-	1.8	MHz
Quiescent Current	IQ	10	-	20	μA
Dropout Voltage	VDROPOUT	0.3	-	0.5	V
Load Regulation	-	-	±1	-	%
Line Regulation	-	-	±1	-	%
Thermal Shutdown	TSD	160	-	-	°C
Operating Temperature	TOPR	-40	-	85	°C
Storage Temperature	TSTG	-55	-	150	°C

Instructions for Use

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 4.75V to 5.25V.
   • Connect the input voltage to the VIN pin.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 3.3V.
   • Connect the load to the VOUT pin.

3. Output Current (IOUT):

   • The device can provide up to 1000mA of output current, with a typical value of 800mA.
   • Ensure the load does not exceed the maximum output current to avoid damage.

4. Efficiency:

   • The efficiency of the device is typically around 90%.
   • For optimal efficiency, ensure the input voltage is close to the nominal value.

5. Switching Frequency (fSW):

   • The switching frequency ranges from 1.2MHz to 1.8MHz.
   • This helps in reducing the size of external components like inductors and capacitors.

6. Quiescent Current (IQ):

   • The quiescent current is between 10μA and 20μA.
   • This low quiescent current helps in minimizing power loss during operation.

7. Dropout Voltage (VDROPOUT):

   • The dropout voltage is between 0.3V and 0.5V.
   • Ensure the input voltage is at least 0.3V to 0.5V higher than the output voltage to maintain regulation.

8. Load Regulation:

   • The load regulation is ±1%.
   • This ensures that the output voltage remains stable under varying load conditions.

9. Line Regulation:

   • The line regulation is ±1%.
   • This ensures that the output voltage remains stable under varying input voltage conditions.

10. Thermal Shutdown (TSD):

    • The device will automatically shut down if the temperature exceeds 160°C.
    • Ensure proper heat dissipation to prevent thermal shutdown.

11. Operating Temperature (TOPR):

    • The operating temperature range is from -40°C to 85°C.
    • Ensure the device operates within this temperature range to avoid performance degradation or damage.

12. Storage Temperature (TSTG):

    • The storage temperature range is from -55°C to 150°C.
    • Store the device in a suitable environment to prevent damage during storage.

Additional Notes:

• Always use appropriate decoupling capacitors on both the input and output sides to ensure stability and reduce noise.
• Refer to the datasheet for detailed information on PCB layout guidelines and recommended external components.

(For reference only)