Details

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BUY LT3758IMSE#PBF https://www.utsource.net/itm/p/8167582.html
New and original

Parameter	Description	Min	Typ	Max	Unit
Input Voltage Range	Operating input voltage range	4.5	-	60	V
Output Voltage Range	Adjustable output voltage range	0.8	-	60	V
Switching Frequency	Internal oscillator frequency setting	-	100	1000	kHz
Current Limit	Maximum switch current limit	-	2.5	3.5	A
Reference Voltage	Internal reference voltage	-	0.8	-	V
Power Dissipation	Maximum power dissipation	-	-	1.5	W
Operating Temperature	Junction temperature range	-40	-	125	°C
Storage Temperature	Storage temperature range	-65	-	150	°C

Instructions for LT3758IMSE#PBF

1. Input Voltage Configuration:

   • Ensure the input voltage is within the specified range of 4.5V to 60V.

2. Output Voltage Setting:

   • Adjust the feedback resistor network to set the desired output voltage within the 0.8V to 60V range.

3. Frequency Setting:

   • Set the switching frequency using an external resistor connected to the RT/CLK pin. The typical range is from 100kHz to 1MHz.

4. Current Limit Adjustment:

   • Use an external sense resistor to set the current limit between 2.5A and 3.5A.

5. Reference Voltage Utilization:

   • The internal reference voltage of 0.8V can be used in conjunction with feedback resistors to accurately set the output voltage.

6. Thermal Management:

   • Keep the junction temperature within -40°C to 125°C by ensuring adequate heat sinking if necessary.

7. Storage Conditions:

   • Store the device in environments where temperatures do not exceed -65°C to 150°C to avoid damage.

8. Power Dissipation Consideration:

   • Design the circuit to ensure that the power dissipation does not exceed 1.5W to maintain reliable operation.

9. Layout Guidelines:

   • Follow good PCB layout practices, keeping high current paths short and wide to minimize parasitic effects.

10. Component Selection:

    • Choose external components (inductors, capacitors, etc.) that are rated appropriately for the expected operating conditions and frequencies.

(For reference only)