Details

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BUY AN7818F https://www.utsource.net/itm/p/12608931.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.5	-	6.0	V
Output Voltage	VOUT	1.8	-	1.8	V
Output Current	IOUT	-	1.5	3.0	A
Quiescent Current	IQ	-	1.5	-	mA
Dropout Voltage	VDROPOUT	-	0.3	-	V
Load Regulation	ΔVOUT/ΔIOUT	-	0.5	-	%
Line Regulation	ΔVOUT/ΔVIN	-	0.1	-	%
Ripple Rejection	-	-	60	-	dB
Operating Temperature	TOPR	-40	-	85	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for AN7818F

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.5V to 6.0V.
   • Avoid exceeding the maximum input voltage to prevent damage to the device.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 1.8V.
   • Use appropriate external components if a different output voltage is required.

3. Output Current (IOUT):

   • The typical output current is 1.5A, with a maximum of 3.0A.
   • Ensure the load does not exceed the maximum output current to avoid overheating or damage.

4. Quiescent Current (IQ):

   • The quiescent current is typically 1.5mA.
   • This is the current consumed by the regulator when no load is present.

5. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.3V.
   • This is the minimum difference between the input and output voltages required to maintain regulation.

6. Load Regulation:

   • The load regulation is typically 0.5%.
   • This indicates the change in output voltage due to changes in load current.

7. Line Regulation:

   • The line regulation is typically 0.1%.
   • This indicates the change in output voltage due to changes in input voltage.

8. Ripple Rejection:

   • The ripple rejection is typically 60dB.
   • This measures the ability of the regulator to reject input voltage ripple.

9. Operating Temperature (TOPR):

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

10. Storage Temperature (TSTG):

    • The storage temperature range is from -65°C to 150°C.
    • Store the device within this range to prevent damage.

Additional Notes:

• Capacitors:

  • Use appropriate input and output capacitors to stabilize the regulator and filter out noise.
  • Recommended values are typically 10μF for both input and output capacitors.

• PCB Layout:

  • Place the input and output capacitors as close as possible to the regulator to minimize parasitic inductance and improve stability.
  • Ensure good thermal management, especially when operating at high currents or temperatures.

• Applications:

  • The AN7818F is suitable for applications requiring a stable 1.8V output, such as microcontroller power supplies, sensor interfaces, and portable electronics.

(For reference only)