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BUY NCP303LSN30T1 https://www.utsource.net/itm/p/11294383.html
NCP303LSN30T1 Voltage Supervisor 3V SOT-153/SOT23?5/TSOP?5/SC59?5 marking SC Voltage Detectorwith Programmable Delay

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	VIN	2.7	-	5.5	V
Output Voltage	VOUT	3.0	-	3.0	V	Fixed
Output Current	IOUT	-	300	-	mA
Quiescent Current	IQ	-	40	-	渭A
Dropout Voltage	VDROPOUT	-	300	-	mV	@ IOUT = 300mA
Shutdown Current	ISD	-	0.1	-	渭A
Operating Temperature	TOPR	-40	-	85	掳C
Storage Temperature	TSTG	-65	-	150	掳C
Thermal Resistance (胃JA)	胃JA	-	140	-	掳C/W

Instructions for Use:

1. Input Voltage Range:

   • Ensure the input voltage is within the range of 2.7V to 5.5V. Operating outside this range can damage the device.

2. Output Voltage:

   • The output voltage is fixed at 3.0V. No external resistors are required for voltage setting.

3. Output Current:

   • The maximum continuous output current is 300mA. Ensure the load does not exceed this limit to avoid overheating or damage.

4. Quiescent Current:

   • The quiescent current is typically 40渭A. This is the current consumed by the regulator when it is active but not supplying any load.

5. Dropout Voltage:

   • The dropout voltage is 300mV at a load current of 300mA. Ensure that the input voltage is at least 300mV higher than the output voltage to maintain regulation.

6. Shutdown Current:

   • When the shutdown pin is activated, the current consumption drops to approximately 0.1渭A.

7. Operating Temperature:

   • The device is designed to operate within a temperature range of -40掳C to 85掳C. Ensure the ambient temperature stays within these limits to avoid performance degradation or failure.

8. Storage Temperature:

   • Store the device in an environment with a temperature range of -65掳C to 150掳C to prevent damage.

9. Thermal Management:

   • The thermal resistance (胃JA) is 140掳C/W. If the device will be operating near its maximum output current, consider using a heatsink or ensuring adequate airflow to manage heat dissipation.

10. Layout Considerations:

    • Place the input and output capacitors as close as possible to the regulator to minimize noise and improve stability.
    • Use low ESR (Equivalent Series Resistance) capacitors for both input and output to ensure optimal performance.

11. Capacitor Selection:

    • For input capacitance, a 1渭F ceramic capacitor is recommended.
    • For output capacitance, a 1渭F to 10渭F ceramic capacitor is recommended to ensure stability and reduce output ripple.

12. Shutdown Pin:

    • To shut down the regulator, pull the shutdown pin low (to ground). To enable the regulator, leave the shutdown pin open or connect it to the input voltage.

13. PCB Layout:

    • Follow good PCB layout practices to minimize parasitic inductances and capacitances. Keep traces short and wide, especially for power and ground connections.

14. Handling Precautions:

    • Handle the device with care to avoid static discharge, which can damage the internal circuits. Use proper ESD (Electrostatic Discharge) protection equipment when handling the device.

(For reference only)