Details

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BUY LM5033SD https://www.utsource.net/itm/p/12609730.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating range	4.5	-	60	V
Output Voltage	VOUT	Adjustable	0.8	-	57	V
Output Current	IOUT	Continuous	-	3.5	-	A
Quiescent Current	IQ	VIN = 12V, no load	-	60	-	μA
Dropout Voltage	VDROPOUT	IOUT = 3.5A, VIN = 5V	-	300	-	mV
Switching Frequency	fSW	Default setting	-	600	-	kHz
PSRR at 1kHz		Power Supply Rejection Ratio	60	-	-	dB
Load Transient Response		ΔIOUT = 0 to 3.5A, 10μs	-	±50	-	mV

Instructions for LM5033SD

1. Input Connection:

   • Connect the input voltage (VIN) within the operating range of 4.5V to 60V.

2. Output Configuration:

   • Set the desired output voltage using external resistors. The adjustable output voltage range is from 0.8V to 57V.

3. Output Capacitor Selection:

   • Choose an output capacitor with a low ESR to ensure stability and good transient response. Recommended values are typically in the range of 10μF to 100μF.

4. Thermal Considerations:

   • Ensure adequate heat sinking if operating at high output currents or in high ambient temperatures to maintain reliability.

5. Frequency Setting:

   • The switching frequency is set by an external resistor connected between the RT pin and ground. For default operation, it is set to 600kHz.

6. Protection Features:

   • The device includes thermal shutdown and current limiting to protect against overtemperature and overload conditions.

7. Layout Recommendations:

   • Keep input and output capacitors close to the IC to minimize trace inductance.
   • Use wide traces for power paths to reduce resistance and improve efficiency.

8. Testing:

   • Before finalizing the design, test the regulator under all expected operating conditions, including load transients and temperature extremes.

(For reference only)