Details

---

BUY TPS54335-1ADRCR https://www.utsource.net/itm/p/7664911.html
Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 3A 10-VFDFN Exposed Pad

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	3.0		17	V
Output Voltage	VOUT	Adjustable Range	0.8		5.5	V
Switching Frequency	fSW			700		kHz
Output Current	IOUT	Continuous		3		A
Efficiency	η	At 5V IN, 3.3V OUT, 2A Load		94		%
Quiescent Current	IQ	No Load		65		μA
Shutdown Current	ISD			1		μA
Thermal Shutdown	TSD			160		°C
Package Type				HVSSOP

Instructions for TPS54335-1ADRCR

1. Power Supply Connections:

   • Connect the input voltage (VIN) to the power supply within the specified range of 3.0V to 17V.
   • Ensure proper decoupling capacitors are placed close to the VIN and GND pins to stabilize the input voltage.

2. Output Configuration:

   • Set the desired output voltage using an external resistor divider network connected to the FB pin.
   • Choose appropriate inductor and output capacitor values based on the load requirements and switching frequency.

3. Switching Frequency Adjustment:

   • The device operates at a fixed switching frequency of 700kHz. If a different frequency is required, consult the datasheet for alternative models or configurations.

4. Thermal Management:

   • Ensure adequate heat dissipation by mounting the device on a suitable heatsink or PCB with sufficient copper area.
   • Monitor the junction temperature to avoid exceeding the thermal shutdown threshold of 160°C.

5. Protection Features:

   • The device includes protection features such as overcurrent protection, short-circuit protection, and thermal shutdown.
   • Verify that these protections meet the system's safety requirements.

6. Enable/Shutdown Functionality:

   • Use the EN pin to enable or disable the device. When disabled, the shutdown current is approximately 1μA.
   • Pull the EN pin low to enter shutdown mode.

7. Layout Considerations:

   • Follow recommended PCB layout guidelines provided in the datasheet to ensure optimal performance and minimize noise and interference.

8. Component Selection:

   • Select components with consideration for their ratings and tolerances to ensure reliable operation under all conditions.

For detailed specifications and additional information, refer to the official Texas Instruments TPS54335-1ADRCR datasheet.

(For reference only)