TPS54560DDA: Top Choice in United States (USA) Utsource Holding Company Limited

Description

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	4.5	-	18	V	Operating input voltage range
Output Voltage	VOUT	-	0.9	6	V	Adjustable output voltage
Switching Frequency	fSW	-	280	700	kHz	Switching frequency
Efficiency	η	-	93	-	%	Peak efficiency
Quiescent Current	IQ	-	35	-	μA	Supply current in power save mode
Load Current	IOUT	-	3	6	A	Continuous output current
Shutdown Current	ISD	-	1	-	μA	Supply current when EN is low
Thermal Shutdown	TSD	-	160	-	°C	Thermal shutdown temperature
Package Type	PKG	-	-	-	-	DDA (DDPAK)

Power-Up Sequence:
- Ensure the input voltage is within the specified range of 4.5V to 18V.
- Apply a logic high signal to the enable pin (EN) to start the device.
Output Voltage Configuration:
- Adjust the output voltage using external resistors connected to the feedback pin (FB).
- Follow the datasheet formula for resistor values to achieve the desired output voltage.
Thermal Considerations:
- Monitor the junction temperature to ensure it does not exceed 160°C to prevent thermal shutdown.
- Use appropriate PCB layout techniques and heatsinking if necessary.
Protection Features:
- The device includes overcurrent protection, short-circuit protection, and thermal shutdown features.
- Verify that these protections are suitable for your application requirements.
Layout Recommendations:
- Place the input and output capacitors as close as possible to the device.
- Keep the ground plane solid and minimize trace lengths for high-frequency nodes.
Switching Frequency Adjustment:
- The switching frequency can be adjusted by an external resistor or synchronized with an external clock source for noise-sensitive applications.
Efficiency Optimization:
- For maximum efficiency, choose components that minimize parasitic losses and optimize the switching frequency based on load conditions.

(For reference only)