Details

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BUY STP4435 https://www.utsource.net/itm/p/7076268.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			V	Regulated output voltage
Output Current	IOUT			3	A	Maximum continuous output current
Quiescent Current	IQ		1.2		mA	Supply current under no load condition
Dropout Voltage	VDROPOUT		0.3		V	Voltage difference between VIN and VOUT at full load
Load Regulation			0.5		%	Change in output voltage due to load change
Line Regulation			0.3		%	Change in output voltage due to line change
Power Dissipation	PD			1.8	W	Maximum power dissipation
Operating Junction Temp.	TJ	-40		125	°C	Operating junction temperature range

Instructions:

1. Input Voltage Connection: Ensure the input voltage (VIN) is within the specified range of 4.5V to 5.5V.
2. Output Configuration: The output voltage (VOUT) is fixed at 3.3V. No external components are required for setting this voltage.
3. Load Handling: The device can supply a maximum continuous output current (IOUT) of up to 3A. Ensure that the load does not exceed this limit.
4. Thermal Management: Keep the operating junction temperature (TJ) within the -40°C to 125°C range. Use appropriate heatsinking if necessary.
5. Quiescent Current Consideration: The quiescent current (IQ) is typically 1.2mA, which should be considered in low-power applications.
6. Dropout Voltage Awareness: At full load, the dropout voltage (VDROPOUT) is around 0.3V. Make sure the input voltage remains sufficiently higher than the output voltage.
7. Regulation Specifications: The load regulation and line regulation are specified as 0.5% and 0.3%, respectively, indicating good stability under varying conditions.
8. Power Dissipation Limit: Do not exceed the maximum power dissipation (PD) of 1.8W to avoid overheating or damage.

Note: Always refer to the official datasheet from STMicroelectronics for the most accurate and detailed information.

(For reference only)