Details

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BUY LM3401MMX/NOPB https://www.utsource.net/itm/p/4751194.html
IC LED DRVR CTRLR DIM 1A 8VSSOP

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating Range	3.0	-	40	V
Output Current	IOUT	Continuous	-	1.0	1.5	A
Switching Frequency	fSW	Typical	-	1.0	-	MHz
Efficiency	η	At VIN = 12V, IOUT = 1A	-	85	-	%
Thermal Shutdown	TSD	Maximum Junction Temperature	-	-	160	°C
Quiescent Current	IQ	Shutdown Mode	-	1	-	μA
Package Type			-	SOT-23	-

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to a power supply within the operating range of 3.0V to 40V.

2. Output Configuration:

   • Ensure that the load current does not exceed the maximum output current of 1.5A.
   • For optimal performance, keep the output current around the typical value of 1.0A.

3. Switching Frequency:

   • The device operates at a typical switching frequency of 1MHz. This can be adjusted if necessary by modifying external components according to the datasheet recommendations.

4. Efficiency Considerations:

   • For best efficiency, operate the LM3401MMX/NOPB at VIN = 12V and IOUT = 1A where it achieves approximately 85% efficiency.

5. Thermal Management:

   • Monitor the junction temperature to ensure it does not exceed 160°C, which could trigger thermal shutdown.

6. Low Power Mode:

   • In shutdown mode, the quiescent current drops to about 1μA, minimizing power consumption when the device is not in use.

7. Package Handling:

   • Handle the SOT-23 package with care to avoid damage to the pins or internal components.

Note: Detailed design considerations, including component selection and layout guidelines, should be referred from the official datasheet provided by the manufacturer.

(For reference only)