Details

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Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Input Voltage	VIN		4.5		60	V
Output Voltage	VOUT			0.8	5.5	V
Switching Frequency	fSW			700		kHz
Output Current	IOUT			6		A
Efficiency	畏	VIN = 12V, VOUT = 3.3V, IOUT = 1A	92	%
Quiescent Current	IQ	VIN = 12V, VOUT = 3.3V, IOUT = 0A		110	渭A
Start-up Current	IST	VIN rising		1.2		mA
Soft-Start Time	tSS			2.5		ms
Thermal Shutdown	TSD			160		掳C
Undervoltage Lockout	UVLO		3.3		4.0	V
Overcurrent Protection	OCP			7.5		A

Instructions for Using TPS54560BDDA

1. Power Supply Connection:

   • Connect the input voltage (VIN) between 4.5V and 60V to the input pin.
   • Ensure proper bypassing of the input with a ceramic capacitor close to the IC.

2. Output Configuration:

   • Set the output voltage using an external resistor divider network connected to the feedback (FB) pin.
   • Use output capacitors suitable for the desired output voltage stability.

3. Frequency Setting:

   • The switching frequency is internally set to 700kHz. External components are not required for frequency adjustment unless specific modifications are needed.

4. Thermal Considerations:

   • Place the device on a PCB with adequate copper area or heatsink to ensure efficient heat dissipation.
   • Monitor the thermal shutdown threshold to prevent overheating.

5. Protection Features:

   • The device includes undervoltage lockout (UVLO), overcurrent protection (OCP), and thermal shutdown (TSD).
   • Verify that these features align with your application requirements.

6. Soft-Start Functionality:

   • The soft-start time is typically 2.5ms, which helps reduce inrush current during startup.

7. Layout Recommendations:

   • Follow good layout practices by minimizing trace lengths for high-frequency nodes.
   • Keep the ground plane solid and continuous under the IC to enhance performance and stability.

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

(For reference only)