Details

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Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Input Voltage	VIN	4.5	-	18	V
Output Voltage	VOUT	-	0.8 to 5.5	-	V	Set by external resistors
Output Current	IOUT	-	2	3	A	Continuous, at 25掳C
Switching Frequency	fSW	-	700	-	kHz	Adjustable via RT resistor
Efficiency	畏	-	96	-	%	At 5V IN, 3.3V OUT, 2A
Quiescent Current	IQ	-	110	-	渭A	No load, all features enabled
Shutdown Current	ISD	-	1	-	渭A	EN = 0V
Thermal Shutdown	TSD	-	160	-	掳C	Typical
Package Type		-	HSON	-		10 pin

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the specified range of 4.5V to 18V.

2. Output Voltage (VOUT):

   • The output voltage can be set using an external resistor divider network connected to the FB (feedback) pin. Refer to the datasheet for specific resistor values.

3. Switching Frequency (fSW):

   • Adjust the switching frequency by connecting a resistor between the RT pin and ground. The typical value is 700kHz but can be adjusted as needed.

4. Thermal Considerations:

   • Monitor the device temperature to ensure it does not exceed 160掳C to prevent thermal shutdown.

5. Power Good (PGOOD) Pin:

   • This pin indicates when the output voltage is within regulation. Connect a pull-up resistor to this pin for monitoring.

6. Enable (EN) Pin:

   • Use the EN pin to enable or disable the device. Apply a high logic level to enable and low to disable.

7. Bypass Capacitors:

   • Place bypass capacitors close to the power supply pins to minimize noise and improve stability.

8. Inductor Selection:

   • Choose an inductor based on the desired output current and ripple current requirements. Refer to the application notes for guidance.

9. Layout Considerations:

   • Optimize PCB layout for thermal performance and noise immunity. Keep high-current paths short and wide.

For detailed design considerations and further instructions, refer to the full datasheet provided by the manufacturer.

(For reference only)