Details

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BUY MC33063ADR2G https://www.utsource.net/itm/p/11246270.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.7	-	28	V
Output Voltage Range	VOUT	1.5	-	40	V
Switching Frequency	fSW	-	100	-	kHz
Output Current	IOUT	-	1.5	-	A
Quiescent Current	IQ	-	1.0	-	mA
Efficiency	畏	-	90	-	%
Thermal Shutdown Temperature	TSD	160	-	-	掳C
Storage Temperature	TSTG	-40	-	125	掳C
Operating Junction Temperature	TJ	-40	-	125	掳C

Instructions for Using the MC33063ADR2G:

1. Power Supply:

   • Ensure the input voltage (VIN) is within the range of 2.7V to 28V.
   • Use appropriate filtering capacitors on the input to reduce noise and ripple.

2. Output Configuration:

   • The output voltage (VOUT) can be adjusted using external resistors R1 and R2 in a feedback network.
   • The formula to calculate the output voltage is: ( V_ = 1.25 left(1 + fracright) ).

3. Inductor Selection:

   • Choose an inductor with a value that ensures stable operation at the desired switching frequency (100 kHz).
   • The inductor should have a saturation current higher than the maximum output current (1.5A).

4. Capacitor Selection:

   • Use a high-quality output capacitor to filter the output voltage and reduce ripple.
   • The output capacitor should have a low ESR (Equivalent Series Resistance) to improve efficiency.

5. Thermal Management:

   • Ensure proper heat dissipation by mounting the IC on a heatsink if operating at high currents or in high ambient temperatures.
   • Monitor the junction temperature (TJ) to ensure it stays within the operational range (-40掳C to 125掳C).

6. Protection:

   • The IC has built-in thermal shutdown protection, but additional overvoltage and overcurrent protection circuits may be necessary for robust designs.

7. Layout Considerations:

   • Keep the layout compact to minimize parasitic inductance and capacitance.
   • Place bypass capacitors close to the power pins to reduce noise.

8. Testing:

   • Test the circuit under various load conditions to ensure stability and performance.
   • Measure the output voltage, current, and efficiency to verify the design meets the specifications.

For detailed application notes and further information, refer to the datasheet provided by the manufacturer.

(For reference only)