Details

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BUY MC78M20CT https://www.utsource.net/itm/p/12608090.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VI		6.5		30	V
Output Voltage	VO		5.0		5.0	V
Output Current	IO	Continuous		0.2		A
Dropout Voltage	VD	IO = 100 mA		1.7		V
Line Regulation		6.5V to 30V		0.01		%
Load Regulation		0 to 200 mA		0.5		%
Ripple Rejection		120 Hz		60		dB
Operating Temperature	TJ		-40		125	掳C
Storage Temperature	TSTG		-65		150	掳C

Instructions for Using MC78M20CT

1. Input Voltage (VI):

   • Ensure the input voltage is within the range of 6.5V to 30V.
   • The input voltage should be at least 1.7V higher than the output voltage to maintain regulation.

2. Output Voltage (VO):

   • The output voltage is fixed at 5.0V.
   • Use appropriate capacitors on the input and output to stabilize the voltage and reduce ripple.

3. Output Current (IO):

   • The maximum continuous output current is 0.2A.
   • Avoid exceeding this limit to prevent damage to the regulator.

4. Capacitors:

   • Place a 0.33渭F capacitor between the input and ground close to the regulator.
   • Place a 0.1渭F capacitor between the output and ground to ensure stability.

5. Thermal Considerations:

   • The operating temperature range is -40掳C to 125掳C.
   • Ensure adequate heat dissipation if the regulator is used in high-power applications or in environments with high ambient temperatures.

6. Ripple Rejection:

   • The regulator provides 60dB of ripple rejection at 120Hz.
   • Use bypass capacitors to further reduce noise and ripple on the input and output lines.

7. Storage Temperature:

   • Store the device in a temperature range of -65掳C to 150掳C.

8. Mounting:

   • Mount the regulator on a PCB with proper clearance to avoid short circuits.
   • Ensure that the PCB layout minimizes trace lengths to reduce parasitic inductance and capacitance.

9. Testing:

   • Test the regulator under various load conditions to ensure it meets the required performance specifications.
   • Measure the output voltage and current to verify stable operation.

10. Safety:

    • Follow all safety guidelines and regulations when handling and using the regulator.
    • Do not exceed the maximum ratings specified in the parameter table.

(For reference only)