Details

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BUY TPS62740DSSR https://www.utsource.net/itm/p/8393781.html

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Input Voltage	V_IN		2.5		5.5	V
Output Voltage	V_OUT	Fixed	1.8			V
Output Current	I_OUT			600		mA
Efficiency	η	V_IN = 3.6V, I_OUT = 300mA		94		%
Switching Frequency	f_SW			2.2		MHz
Quiescent Current	I_Q	V_IN = 3.6V		2.7		μA
Shutdown Current	I_SHDN	V_IN = 3.6V		0.1		μA
Dropout Voltage	V_DROPOUT	I_OUT = 300mA		130		mV

Instructions for TPS62740DSSR

1. Input Capacitor Selection:

   • Use a ceramic capacitor with X7R or better grade dielectric.
   • Place the input capacitor as close as possible to the VIN and GND pins.

2. Output Capacitor Selection:

   • Select a ceramic capacitor with X7R or better grade dielectric.
   • Ensure the output capacitor has a low ESR (Equivalent Series Resistance) to minimize output voltage ripple.

3. Inductor Selection:

   • Choose an inductor based on the desired balance between size, efficiency, and output ripple current.
   • The recommended inductance range is typically between 1μH and 2.2μH.

4. PCB Layout Considerations:

   • Keep the PCB traces short and wide to reduce parasitic inductance and resistance.
   • Ensure adequate thermal management by providing sufficient copper area for heat dissipation.

5. Enable/Shutdown Pin:

   • Apply a logic high to the EN pin to enable the device.
   • Pull the EN pin low to place the device into shutdown mode, reducing quiescent current to less than 0.1μA.

6. Thermal Considerations:

   • Monitor the junction temperature to ensure it remains within the specified operating range.
   • Use thermal vias under the exposed pad to improve heat transfer to the PCB.

7. Stability Considerations:

   • Ensure the feedback loop is stable by using recommended component values for compensation.
   • Refer to the datasheet for detailed stability guidelines.

Note: For precise application-specific settings and configurations, refer to the full datasheet of the TPS62740DSSR.

(For reference only)