Details

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BUY M51995AFP https://www.utsource.net/itm/p/12607198.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Supply Voltage	Vcc	Operating	4.5	5.0	5.5	V
Output Current	Iout	Continuous	-	250	-	mA
Standby Current	Isb	Vcc = 5V, no load	-	1.5	-	mA
Output Voltage	Vout	No load	4.75	5.0	5.25	V
Line Regulation	ΔVout/ΔVin	Vcc = 4.5V to 5.5V	-	0.01	-	%
Load Regulation	ΔVout/ΔIout	Iout = 0mA to 250mA	-	0.01	-	%
Dropout Voltage	Vdo	Iout = 250mA	-	0.5	-	V
Ripple Rejection	RR	10Hz to 100kHz	-	60	-	dB
Operating Temperature	Topr	-	-40	85	-	°C
Storage Temperature	Tstg	-	-65	150	-	°C

Instructions for Use:

1. Power Supply Connection:

   • Connect the positive terminal of the power supply to the Vcc pin.
   • Connect the ground (GND) of the power supply to the GND pin.

2. Output Connection:

   • Connect the load to the Vout pin.
   • Ensure the load does not exceed the maximum output current (250mA).

3. Capacitors:

   • Place a 10μF tantalum capacitor between Vcc and GND close to the regulator to ensure stability.
   • Place a 10μF tantalum capacitor between Vout and GND to filter the output and reduce ripple.

4. Thermal Considerations:

   • The device should be mounted on a heatsink if it is expected to operate at high output currents or in high ambient temperatures.
   • Ensure the operating temperature remains within the specified range (-40°C to 85°C).

5. PCB Layout:

   • Keep the traces from Vcc to the regulator and from the regulator to Vout as short as possible to minimize inductance and improve stability.
   • Use wide traces for the ground plane to reduce resistance and improve heat dissipation.

6. Testing:

   • Before connecting the load, test the output voltage with a multimeter to ensure it is within the specified range (4.75V to 5.25V).
   • Monitor the temperature of the regulator during operation to ensure it does not overheat.

7. Storage:

   • Store the device in a dry, cool place away from direct sunlight and sources of heat.
   • Handle the device with care to avoid damage to the pins and the internal components.

(For reference only)