Details

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BUY W91330ALN https://www.utsource.net/itm/p/12615082.html

Parameter	Symbol	Min	Typical	Max	Unit
Operating Voltage	Vop	2.7	-	5.5	V
Standby Current	Isb	-	0.1	-	渭A
Output Current	Iout	-	300	-	mA
Dropout Voltage	Vdo	-	0.2	-	V
Load Regulation	-	-	0.2	-	%
Line Regulation	-	-	0.2	-	%
Ripple Rejection	-	-	60	-	dB
Thermal Shutdown	TSD	-	150	-	掳C
Operating Temperature	Topr	-40	-	85	掳C
Storage Temperature	Tstg	-65	-	150	掳C

Instructions for Using W91330ALN

1. Power Supply:

   • Ensure the input voltage is within the operating range (2.7V to 5.5V).
   • Use a stable power source to avoid fluctuations that could affect performance.

2. Output Capacitor:

   • Connect a ceramic capacitor (1渭F to 10渭F) between the output and ground to stabilize the output voltage.
   • Place the capacitor as close as possible to the regulator to minimize noise and improve transient response.

3. Input Capacitor:

   • It is recommended to use a ceramic capacitor (1渭F to 10渭F) between the input and ground to filter out high-frequency noise.
   • This capacitor should also be placed close to the regulator.

4. Thermal Management:

   • The device has built-in thermal shutdown protection, but it is important to ensure adequate heat dissipation.
   • Use a heatsink if the output current is close to the maximum rating (300mA) or if the ambient temperature is high.

5. PCB Layout:

   • Keep the traces short and wide to reduce resistance and inductance.
   • Ensure proper grounding to minimize noise and improve stability.

6. Overvoltage Protection:

   • Consider adding overvoltage protection (e.g., a zener diode) to protect the regulator from voltage spikes.

7. Polarity:

   • Ensure correct polarity when connecting the input and output pins. Reverse polarity can damage the regulator.

8. Storage:

   • Store the device in a dry environment within the specified storage temperature range (-65掳C to 150掳C).

By following these instructions, you can ensure optimal performance and reliability of the W91330ALN regulator.

(For reference only)