Details

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BUY LM5575MHX/NOPB https://www.utsource.net/itm/p/12600240.html

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Input Voltage Range	VIN	3.0	-	40.0	V
Output Voltage Range	VOUT	1.23	-	38.0	V
Output Current	IOUT	-	1.5	3.0	A	Continuous
Switching Frequency	fSW	100	500	1000	kHz
Efficiency	畏	-	92%	-	%
Quiescent Current	IQ	-	2.0	-	mA
Shutdown Current	ISD	-	1.0	-	渭A
Thermal Shutdown Threshold	TSD	-	160	-	掳C
Operating Temperature Range	TA	-40	-	125	掳C
Storage Temperature Range	TSTG	-55	-	150	掳C

Instructions for Use:

1. Input Voltage (V_IN):

   • Ensure the input voltage is within the specified range (3.0V to 40.0V) to avoid damage to the device.

2. Output Voltage (V_OUT):

   • Set the output voltage using external resistors according to the formula: V_OUT = 1.23V * (1 + R1/R2), where R1 and R2 are the feedback resistors.

3. Output Current (I_OUT):

   • The device can provide a continuous output current up to 3.0A. For higher currents, consider heat dissipation and thermal management.

4. Switching Frequency (f_SW):

   • Adjust the switching frequency by selecting an appropriate external resistor and capacitor. The typical range is from 100kHz to 1000kHz.

5. Efficiency (畏):

   • The efficiency can reach up to 92%. Optimize the design for maximum efficiency by minimizing losses in the inductor and other components.

6. Quiescent Current (I_Q):

   • The quiescent current is typically 2.0mA. This should be considered in low-power applications.

7. Shutdown Current (I_SD):

   • When the shutdown pin is activated, the current consumption drops to approximately 1.0渭A.

8. Thermal Shutdown (T_SD):

   • The device will automatically shut down if the temperature exceeds 160掳C to prevent damage. Ensure proper cooling and ventilation.

9. Operating Temperature (T_A):

   • The operating temperature range is from -40掳C to 125掳C. Ensure the device operates within this range to maintain reliability.

10. Storage Temperature (T_STG):

    • Store the device in an environment with temperatures ranging from -55掳C to 150掳C to prevent degradation.

Additional Notes:

• Always refer to the datasheet for detailed information and specific application notes.
• Proper PCB layout and component selection are crucial for optimal performance and reliability.

(For reference only)