Details

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BUY MC1466L https://www.utsource.net/itm/p/12610910.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VI	3.0	-	30.0	V	Operating input voltage range
Output Voltage	VO	2.5	-	30.0	V	Adjustable output voltage range
Dropout Voltage	VD	-	0.7	1.5	V	Voltage difference between input and output for regulation
Quiescent Current	IQ	-	8	15	mA	Current consumed by the regulator when no load is present
Load Regulation	-	-	0.1	0.5	%/A	Change in output voltage due to change in load current
Line Regulation	-	-	0.05	0.2	%/V	Change in output voltage due to change in input voltage
Output Ripple Rejection	-	50	70	80	dB	Ability to reject ripple from the input voltage
Thermal Shutdown	TSD	-	175	-	掳C	Temperature at which the device will shut down to prevent damage
Short-Circuit Current	ISC	-	1.5	3.0	A	Maximum current during a short circuit
Operating Temperature	TA	-40	-	125	掳C	Ambient temperature range for operation

Instructions for Using the MC1466L

1. Power Supply Connection:

   • Connect the input voltage (V_I) to the IN pin.
   • Ensure the input voltage is within the specified range (3.0V to 30.0V).

2. Output Configuration:

   • Connect the output voltage (V_O) to the OUT pin.
   • Use external resistors to set the desired output voltage. The formula for calculating the output voltage is: [ V_ = V_ left(1 + fracright) ] where ( V_ ) is the reference voltage (typically 1.25V), ( R_1 ) is the resistor connected between the OUT and ADJ pins, and ( R_2 ) is the resistor connected between the ADJ pin and ground.

3. Capacitors:

   • Place a 1渭F ceramic capacitor between the IN pin and ground to filter input noise.
   • Place a 1渭F ceramic capacitor between the OUT pin and ground to stabilize the output voltage.

4. Thermal Considerations:

   • Ensure adequate heat dissipation to prevent the device from exceeding the thermal shutdown temperature (175掳C).
   • Use a heatsink if necessary, especially for high-power applications.

5. Short-Circuit Protection:

   • The MC1466L has built-in short-circuit protection, but it is recommended to use a fuse or other overcurrent protection on the input side to prevent damage to the power supply.

6. Layout Considerations:

   • Keep the layout compact and minimize trace lengths, especially for the ground connections, to reduce noise and improve stability.
   • Use wide traces for power lines to handle the current efficiently.

7. Testing:

   • After assembly, test the output voltage with a multimeter to ensure it matches the expected value.
   • Check the ripple and noise on the output using an oscilloscope to verify the performance.

By following these instructions, you can effectively use the MC1466L in your circuit design.

(For reference only)