Details

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BUY LM26420XSQX/NOPB https://www.utsource.net/itm/p/12612097.html

Parameter	Symbol	Min	Typical	Max	Unit	Conditions
Input Voltage	VIN	4.5	-	17	V
Output Voltage	VOUT	-	3.3	-	V	Adjustable with external resistors
Output Current	IOUT	-	2	2.5	A	Continuous
Switching Frequency	fSW	-	1.5	-	MHz
Efficiency	畏	-	92	-	%	At 3.3V output, 2A load
Quiescent Current	IQ	-	60	-	渭A	No load
Shutdown Current	ISD	-	1	-	渭A
Thermal Shutdown	TSD	-	160	-	掳C
Operating Temperature	TOPR	-40	-	125	掳C
Storage Temperature	TSTG	-65	-	150	掳C
Package Type	-	-	X2QX	-	-

Instructions for Using LM26420XSQX/NOPB

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 4.5V to 17V.
   • Use appropriate input capacitors to stabilize the input voltage.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted using external feedback resistors.
   • Connect the feedback pin (FB) to the output through a resistor divider to set the desired output voltage.

3. Output Current (IOUT):

   • The device can provide up to 2.5A continuous output current.
   • For higher current applications, ensure proper heat dissipation and use additional cooling if necessary.

4. Switching Frequency (fSW):

   • The switching frequency is fixed at 1.5MHz.
   • This helps in reducing the size of external components like inductors and capacitors.

5. Efficiency (畏):

   • The typical efficiency is 92% at 3.3V output and 2A load.
   • Efficiency can be optimized by selecting appropriate inductors and output capacitors.

6. Quiescent Current (IQ):

   • The quiescent current is typically 60渭A when no load is present.
   • This low quiescent current helps in extending battery life in portable applications.

7. Shutdown Current (ISD):

   • The shutdown current is typically 1渭A.
   • Use the shutdown pin (SHDN) to turn off the device and reduce power consumption.

8. Thermal Shutdown (TSD):

   • The device will automatically shut down if the junction temperature exceeds 160掳C.
   • Ensure adequate thermal management to prevent overheating.

9. Operating Temperature (TOPR):

   • The operating temperature range is from -40掳C to 125掳C.
   • Ensure the device is used within this temperature range to avoid damage.

10. Storage Temperature (TSTG):

    • The storage temperature range is from -65掳C to 150掳C.
    • Store the device in a dry and cool environment to prevent damage.

11. Package Type:

    • The device is available in an X2QX package.
    • Follow the recommended PCB layout guidelines for optimal performance and reliability.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Use proper PCB layout techniques to minimize noise and ensure stable operation.
• For high-reliability applications, consider derating the maximum ratings to ensure long-term reliability.

(For reference only)