Details

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BUY LM5033SD/NOPB https://www.utsource.net/itm/p/12403239.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	4.5	-	60	V
Output Voltage	VOUT	Adjustable	0.8	-	57.2	V
Switching Frequency	fSW	Programmable	100	500	900	kHz
Quiescent Current	IQ	VIN = 12V, VOUT = 5V	-	58	-	μA
Load Regulation		IOUT = 0mA to IOUT(max)	-	0.2	-	%
Line Regulation		VIN = 12V to 60V	-	0.05	-	%
Efficiency	η	VIN = 12V, VOUT = 5V, IOUT = 1A	-	90	-	%
Thermal Shutdown	TSD	-	-	160	-	°C

Instructions for LM5033SD/NOPB

1. Input Voltage Setup:

   • Ensure the input voltage is within the range of 4.5V to 60V.
   • Use appropriate input capacitors (typically ceramic or tantalum) close to the VIN pin to stabilize the input.

2. Output Voltage Configuration:

   • Adjust the output voltage using an external resistor divider connected to the FB (feedback) pin.
   • Refer to the datasheet for specific resistor values based on desired output voltage.

3. Frequency Programming:

   • The switching frequency can be set by connecting an external resistor between the RT/CLK pin and GND.
   • Choose resistor value according to the formula provided in the datasheet for desired frequency.

4. Thermal Considerations:

   • Monitor the thermal shutdown threshold (around 160°C).
   • Ensure adequate heat sinking if operating at high power levels or in high ambient temperatures.

5. Protection Features:

   • The device includes overcurrent protection, which limits the current during overload conditions.
   • Short-circuit protection helps safeguard against continuous short circuits at the output.

6. Layout Guidelines:

   • Keep the layout compact to minimize parasitic effects.
   • Place the input and output capacitors as close as possible to the respective pins.
   • Use wide traces for ground connections to reduce resistance and inductance.

For detailed design considerations and application examples, refer to the full datasheet available from the manufacturer.

(For reference only)