Details

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BUY CS3815EO https://www.utsource.net/itm/p/12606920.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Supply Voltage	VDD	2.7	5.0	5.5	V
Quiescent Current	IQ	-	1.0	-	mA	VDD = 5V
Shutdown Current	ISD	-	0.01	-	渭A	VSD = 0V
Output Voltage	VOUT	-	3.3	-	V	VDD = 5V
Load Current	ILOAD	-	150	-	mA	VDD = 5V
Dropout Voltage	VDROPOUT	-	0.2	-	V	ILOAD = 150mA, VDD = 5V
Operating Temperature	TOPR	-40	-	85	掳C
Storage Temperature	TSTG	-65	-	150	掳C

Instructions for Use

1. Power Supply:

   • Connect the supply voltage (VDD) to the input pin. Ensure the voltage is within the specified range (2.7V to 5.5V).
   • Ground (GND) must be connected to the ground reference.

2. Output Configuration:

   • The output voltage (VOUT) is typically 3.3V when VDD is 5V. No external components are required for this fixed output.
   • For adjustable output configurations, refer to the datasheet for additional resistor values.

3. Shutdown Function:

   • To enable the shutdown function, connect the shutdown pin (SD) to ground (GND). This will reduce the current consumption to the shutdown current (ISD).
   • To activate the device, connect the SD pin to VDD or leave it floating.

4. Thermal Management:

   • Ensure proper heat dissipation by using a heatsink if the load current exceeds typical operating conditions.
   • Operate the device within the specified temperature range to avoid thermal damage.

5. Capacitors:

   • Place a 1渭F ceramic capacitor close to the input pin (VDD) to filter out noise.
   • A 1渭F ceramic capacitor should also be placed close to the output pin (VOUT) to stabilize the output voltage.

6. PCB Layout:

   • Follow good PCB layout practices to minimize parasitic inductance and capacitance.
   • Keep the ground plane solid and wide to ensure low impedance.

7. Handling:

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

For more detailed information, refer to the official datasheet of the CS3815EO.

(For reference only)