Details

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BUY TPS54286PWPR https://www.utsource.net/itm/p/5304150.html
2-A DUAL NON-SYNCHRONOUS CONVERTER WITH INTEGRATED HIGH-SIDE MOSFET

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	18	V	Operating input voltage range
Output Voltage	VOUT	-	0.9	5.5	V	Adjustable output voltage
Switching Frequency	fSW	-	700	-	kHz	Internal oscillator frequency
Efficiency	η	-	-	95	%	Peak efficiency
Quiescent Current	IQ	-	30	-	μA	Supply current with no load
Load Regulation	-	-	0.2	-	%	Change in output voltage over load range
Line Regulation	-	-	0.2	-	%	Change in output voltage over input voltage range
PSRR (120 Hz)	-	-	60	-	dB	Power supply rejection ratio
Soft-Start Time	tSS	-	4	-	ms	Time to ramp up output voltage
Enable Input High Voltage	VIH	-	1.24	-	V	Minimum enable pin voltage for active operation
Enable Input Low Voltage	VIL	-	0.8	-	V	Maximum enable pin voltage for inactive operation
Thermal Shutdown	TSD	-	160	-	°C	Junction temperature at which thermal shutdown occurs
Package Type	-	-	-	-	PWPR	Package type

Instructions for Use:

1. Input Voltage Range: Ensure the input voltage is within the specified range of 4.5V to 18V.
2. Output Voltage Setting: Adjust the output voltage using external resistors according to the datasheet formula.
3. Switching Frequency: The internal oscillator operates at a fixed frequency of 700kHz, but can be adjusted if necessary.
4. Efficiency Optimization: Place the device and components carefully on the PCB to minimize losses and optimize efficiency.
5. Thermal Considerations: Monitor the junction temperature to prevent overheating; use heatsinks or other cooling methods if required.
6. Enable Control: Use the enable pin to control the power-up and power-down sequences of the device.
7. Soft-Start Functionality: Utilize the soft-start feature to gradually increase the output voltage, reducing inrush currents.
8. Protection Features: The device includes thermal shutdown and other protection features to ensure safe operation under fault conditions.

For detailed application circuits and design considerations, refer to the full datasheet provided by the manufacturer.

(For reference only)