Details

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Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	2.7	-	5.5	V
Output Voltage	VOUT	Fixed	1.8	-	3.3	V
Output Current	IOUT	Continuous	-	600	-	mA
Switching Frequency	FSW	Typical	-	1.5	-	MHz
Quiescent Current	IQ	No Load, VIN = 3.3V	-	45	-	μA
Shutdown Current	ISD	VIN = 3.3V, SHDN = 0V	-	1	-	μA
Efficiency	η	VIN = 3.3V, VOUT = 1.8V, IOUT = 300mA	-	90	-	%

Instructions for Use:

1. Input Capacitor Selection: Choose an input capacitor with low ESR to minimize voltage ripple. A ceramic capacitor is recommended.
2. Output Capacitor Selection: Select an output capacitor that can handle the required output current and provides stable operation. A ceramic capacitor with X5R or X7R dielectric is suggested.
3. Inductor Selection: The inductor should be chosen based on the desired output current and switching frequency. Ensure it has a saturation current rating higher than the maximum output current.
4. Layout Considerations: Keep the layout compact to minimize parasitic inductance and capacitance. Place the input and output capacitors as close as possible to the device.
5. Thermal Considerations: Ensure adequate heat dissipation by providing a good thermal path, such as a ground plane under the device.
6. Shutdown Operation: To place the part into shutdown mode, pull the SHDN pin below 0.4V. In this state, the quiescent current drops to less than 1μA.
7. Stability: For stable operation, ensure the loop compensation components are selected according to the application circuit guidelines provided in the datasheet.

Note: Always refer to the latest datasheet from Linear Technology (now part of Analog Devices) for detailed specifications and application notes.

(For reference only)