Details

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BUY FA5502 https://www.utsource.net/itm/p/12605959.html

Parameter	Description	Min	Typ	Max	Unit
Supply Voltage (Vcc)	Operating voltage range	4.5	-	5.5	V
Output Current (Iout)	Maximum output current	-	100	-	mA
Quiescent Current (Iq)	Current consumption in active mode	0.1	-	1.0	mA
Shutdown Current (Ishd)	Current consumption in shutdown mode	0.1	-	1.0	渭A
Output Voltage (Vout)	Regulated output voltage	3.3	-	3.3	V
Dropout Voltage (Vdo)	Minimum input-to-output voltage difference for regulation	0.2	-	0.6	V
Load Regulation	Change in output voltage with load current	-	2	-	mV
Line Regulation	Change in output voltage with input voltage	-	2	-	mV
Thermal Shutdown Temperature (Tsd)	Temperature at which the device shuts down to prevent damage	-	150	-	掳C
Operating Temperature Range (Topr)	Ambient temperature range for operation	-40	-	85	掳C
Storage Temperature Range (Tstg)	Temperature range for storage	-55	-	150	掳C

Instructions for Use:

1. Supply Voltage:

   • Ensure the supply voltage (Vcc) is within the range of 4.5V to 5.5V.
   • Connect the supply voltage to the Vcc pin and ground to the GND pin.

2. Output Configuration:

   • The regulated output voltage (Vout) is fixed at 3.3V.
   • Connect the load to the Vout pin and ensure it does not exceed the maximum output current of 100mA.

3. Quiescent and Shutdown Current:

   • The quiescent current (Iq) is typically 0.1mA to 1.0mA.
   • To enter shutdown mode, apply a low signal to the SHDN pin. The shutdown current (Ishd) is typically 0.1渭A to 1.0渭A.

4. Thermal Considerations:

   • The device will shut down if the junction temperature exceeds 150掳C to prevent damage.
   • Ensure adequate heat dissipation by using a heatsink or PCB copper pour if necessary.

5. Temperature Range:

   • Operate the device within the ambient temperature range of -40掳C to 85掳C.
   • Store the device within the temperature range of -55掳C to 150掳C.

6. Capacitors:

   • Place a 1渭F ceramic capacitor between Vout and GND close to the device to improve stability and transient response.
   • Optionally, place a 10渭F tantalum capacitor between Vcc and GND for better input filtering.

7. PCB Layout:

   • Keep the traces from Vcc to the device and from Vout to the load as short as possible to minimize voltage drops and noise.
   • Use wide traces for power and ground to reduce resistance and inductance.

8. Testing:

   • Verify the output voltage with a multimeter to ensure it is stable at 3.3V.
   • Test the load regulation and line regulation to ensure they meet the specified values.

(For reference only)