Details

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Below is the parameter table and instructions for the NJW0281G:

NJW0281G Parameter Table

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VCC	4.5	5.0	5.5	V
Output Voltage	VOUT	3.3	3.3	3.3	V	No Load
Output Current	IOUT	0	1000	1500	mA	Continuous
Dropout Voltage	VD	0.3	0.5	1.0	V	IOUT = 1000 mA
Quiescent Current	IQ	0.1	0.2	0.3	mA	VCC = 5V
Shutdown Current	ISD	0.1	0.2	0.3	μA	VSD = 0V
Thermal Shutdown Temperature	TSD	160	170	180	°C
Operating Temperature Range	TOPR	-40		85	°C
Storage Temperature Range	TSTG	-55		150	°C

Instructions for Using NJW0281G

1. Supply Voltage (VCC):

   • Ensure the supply voltage is within the range of 4.5V to 5.5V.
   • Use a stable power source to avoid fluctuations that could affect performance.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 3.3V under no load conditions.
   • Verify the output voltage with a multimeter to ensure it meets the required specifications.

3. Output Current (IOUT):

   • The device can provide up to 1500mA continuously.
   • For optimal performance, keep the load current below 1000mA to avoid excessive heat generation.

4. Dropout Voltage (VD):

   • The dropout voltage is the minimum difference between the input and output voltages required to maintain regulation.
   • Ensure the input voltage is at least 0.5V higher than the output voltage to maintain regulation.

5. Quiescent Current (IQ):

   • The quiescent current is the current consumed by the regulator when no load is present.
   • This value should be considered in power budget calculations.

6. Shutdown Current (ISD):

   • When the shutdown pin (SD) is pulled low, the device enters a low-power mode.
   • The shutdown current is very low, typically less than 0.3μA.

7. Thermal Shutdown (TSD):

   • The device has built-in thermal protection that will shut down the regulator if the temperature exceeds 160°C to 180°C.
   • Ensure proper heat dissipation, especially under high load conditions.

8. Operating Temperature Range (TOPR):

   • The device is designed to operate within the temperature range of -40°C to 85°C.
   • Avoid operating the device outside this range to prevent damage.

9. Storage Temperature Range (TSTG):

   • The device can be stored in temperatures ranging from -55°C to 150°C.
   • Store the device in a dry, cool place to ensure long-term reliability.

10. Mounting and Layout:

    • Use a good quality PCB with appropriate copper areas for heat dissipation.
    • Place the input and output capacitors close to the regulator to minimize noise and improve stability.
    • Use bypass capacitors (typically 10μF and 0.1μF) on both the input and output sides.

11. Application Notes:

    • Refer to the datasheet for detailed application notes and circuit diagrams.
    • Consider using additional components like diodes and resistors as recommended in the datasheet for specific applications.

By following these parameters and instructions, you can ensure the reliable operation of the NJW0281G in your design.

(For reference only)