Details

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BUY L6997S https://www.utsource.net/itm/p/12616736.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	Vcc	4.5	-	5.5	V	Operating supply voltage range
Output Current	Iout	-	1.2	1.5	A	Maximum output current
Efficiency	η	-	90	-	%	Typical efficiency at rated load
Switching Frequency	fsw	300	-	2000	kHz	Switching frequency range
Quiescent Current	IQ	50	-	100	μA	Current consumption in standby mode
Dropout Voltage	Vdo	-	300	-	mV	Dropout voltage at maximum output current
Thermal Shutdown	TSD	-	160	-	°C	Temperature at which thermal shutdown occurs
Protection Features	-	-	-	-	-	Overcurrent, overtemperature, short-circuit

Instructions for L6997S:

1. Power Supply Connection: Connect the power supply to the Vcc and GND pins within the specified voltage range (4.5V to 5.5V).
2. Output Configuration: Ensure the output current does not exceed the maximum rating of 1.5A.
3. Thermal Management: Place the device on a heatsink or ensure adequate airflow if operating near the maximum temperature limit.
4. Switching Frequency Setting: Adjust external components as necessary to set the switching frequency within the 300kHz to 2000kHz range.
5. Protection Circuits: The device includes built-in protection against overcurrent, overtemperature, and short circuits; no additional protection is typically required.
6. Efficiency Consideration: Operate within typical conditions to achieve the best efficiency, around 90%.
7. Quiescent Current Awareness: Keep in mind the quiescent current when designing low-power applications.
8. Dropout Voltage: Account for the dropout voltage especially when designing for low voltage differences between input and output.

For detailed specifications and application notes, refer to the official datasheet provided by the manufacturer.

(For reference only)