Details

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BUY NCE55P05S https://www.utsource.net/itm/p/11546049.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	3.3	-	5.0	V	Adjustable output voltage
Output Current	IOUT	-	500	-	mA	Maximum continuous output current
Quiescent Current	IQ	-	2.5	-	mA	Typical quiescent current at no load
Dropout Voltage	VDROP	-	0.5	-	V	Typical dropout voltage at full load
Load Regulation	-	-	0.5	-	%	Change in output voltage with load (10% to 100%)
Line Regulation	-	-	0.1	-	%	Change in output voltage with input (4.5V to 5.5V)
Ripple Rejection	-	-	60	-	dB	Power supply rejection ratio at 1kHz
Operating Temperature	TOP	-40	-	85	掳C	Operating ambient temperature range
Storage Temperature	TSTG	-65	-	150	掳C	Storage temperature range
Thermal Resistance	胃JA	-	50	-	掳C/W	Junction-to-ambient thermal resistance

Instructions for Using NCE55P05S:

1. Input Voltage:

   • Ensure the input voltage is within the specified range of 4.5V to 5.5V.
   • Use appropriate filtering capacitors on the input to reduce noise and ripple.

2. Output Voltage:

   • The output voltage can be adjusted using external resistors. Refer to the datasheet for the specific resistor values required for your desired output voltage.

3. Output Current:

   • The device can provide up to 500mA of continuous output current. Ensure that the load does not exceed this limit to avoid overheating or damage.

4. Quiescent Current:

   • The quiescent current is typically 2.5mA when there is no load. This should be considered in low-power applications.

5. Dropout Voltage:

   • The dropout voltage is typically 0.5V at full load. Ensure that the input voltage is at least 0.5V higher than the output voltage to maintain regulation.

6. Load and Line Regulation:

   • The load regulation is typically 0.5%, and the line regulation is typically 0.1%. These parameters ensure stable output voltage under varying load and input conditions.

7. Ripple Rejection:

   • The power supply rejection ratio (PSRR) is typically 60dB at 1kHz, which helps in reducing output ripple and noise.

8. Operating Temperature:

   • The device operates reliably within the temperature range of -40掳C to 85掳C. Ensure proper heat dissipation if operating near the upper limit.

9. Storage Temperature:

   • Store the device in an environment with temperatures ranging from -65掳C to 150掳C to prevent damage.

10. Thermal Management:

    • The thermal resistance (胃_JA) is typically 50掳C/W. Use a heatsink or ensure adequate airflow if the device will be operating at high power levels.

11. PCB Layout:

    • Place the input and output capacitors as close as possible to the device to minimize inductance and improve stability.
    • Use wide traces for the input and output connections to reduce resistance and improve heat dissipation.

12. Capacitors:

    • Use ceramic capacitors for the input and output to ensure stability and low ESR (Equivalent Series Resistance).

13. Safety:

    • Always follow proper handling and soldering procedures to avoid damaging the device.
    • Ensure that the device is not subjected to voltages or currents beyond its ratings.

(For reference only)