Details

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BUY LM2575T-5.0 TO-220 CHINA ORIGINAL https://www.utsource.net/itm/p/11258272.html

Parameter	Description	Value
Part Number	Model	LM2575T-5.0
Package Type	Package	TO-220
Country of Origin	Manufacturer Location	China (Original)
Output Voltage	Fixed Output Voltage	5.0V
Input Voltage Range	Operating Input Voltage Range	7V to 40V
Output Current	Maximum Output Current	3A
Switching Frequency	Internal Oscillator Frequency	52kHz
** Dropout Voltage**	Minimum Input Voltage for Regulation	2.5V
Line Regulation	Line Regulation	卤1%
Load Regulation	Load Regulation	卤1.5%
Ripple Rejection	Ripple Rejection	60dB (120Hz)
Thermal Shutdown	Thermal Shutdown Temperature	160掳C
Protection	Protection Features	Overcurrent, Thermal
Operating Temperature	Operating Temperature Range	-40掳C to +125掳C
Storage Temperature	Storage Temperature Range	-65掳C to +150掳C
Mounting Type	Mounting	Through-Hole

Instructions for Use

1. Circuit Design:

   • Ensure the input voltage is within the specified range (7V to 40V).
   • Connect a capacitor (typically 10渭F to 100渭F) between the input pin and ground to filter out noise.
   • Connect a capacitor (typically 10渭F to 100渭F) between the output pin and ground to stabilize the output voltage.
   • A diode (e.g., 1N5819) should be connected between the input and output pins to prevent reverse current flow.

2. PCB Layout:

   • Place the LM2575T-5.0 close to the input and output capacitors to minimize parasitic inductance.
   • Use wide traces for the input and output paths to handle high currents efficiently.
   • Ensure good thermal management by providing a heatsink if operating at high power levels.

3. Thermal Considerations:

   • The device has a maximum junction temperature of 160掳C. Use a heatsink to keep the temperature within safe limits, especially under high load conditions.
   • Monitor the temperature during operation to avoid thermal shutdown.

4. Testing:

   • Before finalizing the design, test the circuit with the expected load to ensure stable output and proper regulation.
   • Verify the ripple and noise on the output using an oscilloscope.

5. Safety:

   • Ensure all connections are secure to prevent short circuits.
   • Use appropriate fuses or circuit breakers to protect against overcurrent conditions.

By following these guidelines, you can ensure reliable and efficient operation of the LM2575T-5.0 in your application.

(For reference only)