Details

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BUY 7812A https://www.utsource.net/itm/p/12610439.html

Parameter	Value	Unit
Output Voltage	12	V
Input Voltage Range	14.5 to 35	V
Output Current	1.5	A
Line Regulation	0.01%
Load Regulation	0.01%
Dropout Voltage	2.5	V
Quiescent Current	5	mA
Ripple Rejection	60	dB
Operating Temperature	-40 to +125	掳C
Storage Temperature	-65 to +150	掳C

Instructions for Use:

1. Input Connection: Connect the input voltage to the "IN" pin. Ensure the input voltage is within the specified range (14.5V to 35V) to avoid damage to the regulator.
2. Output Connection: Connect the load to the "OUT" pin. The output voltage will be regulated to 12V.
3. Ground Connection: Connect the ground of the input and output circuits to the "GND" pin.
4. Heat Dissipation: For high current applications, ensure proper heat dissipation by using a heatsink or heat spreader. The thermal resistance from junction to ambient should be considered.
5. Capacitors: Place a 0.33渭F capacitor between the input and ground and a 0.1渭F capacitor between the output and ground to stabilize the regulator and reduce ripple.
6. PCB Layout: Keep the input and output traces short and wide to minimize inductance and improve stability.
7. Overcurrent Protection: The 7812A has built-in overcurrent protection, but it is recommended to use external fuses or circuit breakers for additional safety.
8. Thermal Protection: The regulator includes thermal shutdown to protect against overheating. If the temperature exceeds the safe operating range, the regulator will shut down until it cools down.
9. Storage: Store the device in a dry, cool place away from direct sunlight and sources of heat.

Safety Precautions:

• Do not exceed the maximum input voltage.
• Ensure proper heat dissipation to prevent thermal damage.
• Use appropriate capacitors to stabilize the regulator.
• Follow all electrical safety guidelines when handling and installing the regulator.

(For reference only)