Details

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BUY MA3120WA https://www.utsource.net/itm/p/7325772.html
MA3120WA 1 pair common cathode Zener Diodes 12V 200mW/0.2W SOT23-12v marking 12A constant voltage/constant current

Parameter	Description	Value	Unit
Input Voltage	Operating voltage range	2.7 to 5.5	V
Output Voltage	Fixed output voltage	3.3	V
Output Current	Maximum continuous output current	600	mA
Quiescent Current	Current consumption in normal operation	2.5	μA
Dropout Voltage	Minimum input-to-output voltage difference	200	mV
PSRR	Power supply rejection ratio at 1kHz	70	dB
Load Regulation	Change in output voltage due to load changes	0.5	%
Line Regulation	Change in output voltage due to input changes	0.01	%/V
Operating Temperature	Ambient temperature range for operation	-40 to +85	°C

Instructions for MA3120WA

1. Power Supply Connection:

   • Connect the input voltage (VIN) between the VIN pin and GND.
   • Ensure the input voltage is within the specified operating range of 2.7V to 5.5V.

2. Output Configuration:

   • The output voltage (VOUT) is fixed at 3.3V. Connect the load between the VOUT pin and GND.

3. Capacitor Requirements:

   • Place a ceramic capacitor (typically 1μF) between VIN and GND close to the device.
   • Place a ceramic capacitor (typically 1μF) between VOUT and GND close to the device.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating near maximum load conditions.
   • Keep the ambient temperature within the specified range (-40°C to +85°C).

5. PCB Layout:

   • Use a ground plane under the device to improve thermal performance and reduce noise.
   • Keep traces short and wide to minimize parasitic inductance and resistance.

6. Handling Precautions:

   • Handle with care to avoid damage from electrostatic discharge (ESD).
   • Follow standard anti-static procedures when handling components.

(For reference only)