Details

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BUY SI9110DY https://www.utsource.net/itm/p/12607204.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	-	3.3	-	V
Output Current	IOUT	-	1.5	2.0	A
Quiescent Current	IQ	-	20	30	渭A
Shutdown Current	ISD	-	0.1	0.5	渭A
Dropout Voltage	VDROP	-	120	180	mV
Load Regulation	-	-	0.5	1.0	%
Line Regulation	-	-	0.1	0.2	%
PSRR at 100 kHz	-	-	60	70	dB
Operating Temperature	TOP	-40	-	125	掳C

Instructions for Using SI9110DY

1. Power Supply Connection:

   • Connect the input voltage (V_IN) to the input pin.
   • Ensure the input voltage is within the range of 2.7V to 5.5V.

2. Output Configuration:

   • The output voltage (V_OUT) is fixed at 3.3V.
   • Connect the load to the output pin.

3. Ground Connection:

   • Connect the ground (GND) pin to the common ground of the system.

4. Capacitor Requirements:

   • Place a 1渭F ceramic capacitor between V_IN and GND as close as possible to the device.
   • Place a 1渭F ceramic capacitor between V_OUT and GND as close as possible to the device.

5. Shutdown Function:

   • To enable the shutdown function, connect the shutdown (SHDN) pin to GND.
   • To activate the regulator, leave the SHDN pin open or connect it to V_IN.

6. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high output currents.
   • Use a heatsink if necessary to maintain the operating temperature within the specified range (-40掳C to 125掳C).

7. Layout Recommendations:

   • Keep the layout compact to minimize parasitic inductance and capacitance.
   • Use wide traces for power and ground connections to reduce resistance and improve thermal performance.

8. Storage and Handling:

   • Store the device in a dry environment to prevent moisture damage.
   • Handle with care to avoid static discharge which can damage the device.

By following these instructions, you can ensure optimal performance and reliability of the SI9110DY in your application.

(For reference only)