Details

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BUY HCNW4503 https://www.utsource.net/itm/p/12604125.html

Parameter	Symbol	Min	Typical	Max	Unit	Description
Supply Voltage	VDD	1.7	-	3.6	V	Operating supply voltage range
Output Current	IOUT	-	300	-	mA	Maximum continuous output current
Quiescent Current	IQ	-	2.5	-	渭A	Current consumption when no load
Dropout Voltage	VDROPOUT	-	200	-	mV	Voltage difference between input and output at max IOUT
Thermal Shutdown	TSD	-	150	-	掳C	Temperature at which device shuts down
Operating Junction Temp	TJ	-40	-	125	掳C	Operating temperature range
Storage Temperature	TSTG	-65	-	150	掳C	Temperature range for storage
Load Transient Response	-	-	卤100	-	mV	Change in output voltage during load step
Line Transient Response	-	-	卤50	-	mV	Change in output voltage during line step
Power Dissipation	PD	-	-	800	mW	Maximum power dissipation (derated above 25掳C)
Efficiency	畏	-	85	-	%	Typical efficiency at full load

Instructions for Using HCNW4503

1. Supply Voltage:

   • Ensure the supply voltage (VDD) is within the range of 1.7V to 3.6V to avoid damage or improper operation.

2. Output Current:

   • The device can provide up to 300mA of continuous output current. Ensure the load does not exceed this limit to prevent overheating or failure.

3. Quiescent Current:

   • The quiescent current is typically 2.5渭A, which is very low, making the device suitable for battery-powered applications.

4. Dropout Voltage:

   • The dropout voltage is typically 200mV. This means the input voltage must be at least 200mV higher than the output voltage to maintain regulation.

5. Thermal Shutdown:

   • The device will shut down if the junction temperature exceeds 150掳C to protect against thermal damage. Ensure adequate heat dissipation in high-power applications.

6. Operating Temperature:

   • The operating junction temperature range is from -40掳C to 125掳C. Ensure the device operates within this range to avoid performance issues or damage.

7. Storage Temperature:

   • Store the device in an environment with temperatures ranging from -65掳C to 150掳C to ensure long-term reliability.

8. Load Transient Response:

   • The output voltage may change by 卤100mV during load transients. Use appropriate capacitors to stabilize the output during these events.

9. Line Transient Response:

   • The output voltage may change by 卤50mV during line transients. Use appropriate capacitors to stabilize the output during these events.

10. Power Dissipation:

    • The maximum power dissipation is 800mW. For applications where the power dissipation approaches this limit, use a heatsink or ensure adequate airflow to prevent overheating.

11. Efficiency:

    • The typical efficiency at full load is 85%. Design the power supply system to optimize efficiency and minimize power loss.

By following these parameters and instructions, you can ensure reliable and efficient operation of the HCNW4503.

(For reference only)