Details

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BUY MX7847JR+ https://www.utsource.net/itm/p/12612262.html

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Supply Voltage	VDD	2.7	-	5.5	V
Output Voltage	VOUT	-	3.3	-	V	Fixed output
Quiescent Current	IQ	-	10	-	μA	No load
Load Regulation	ΔVOUT	-	0.1	-	%	0mA to 500mA
Line Regulation	ΔVOUT	-	0.1	-	%	VDD from 2.7V to 5.5V
Dropout Voltage	VDROPOUT	-	0.3	-	V	At 500mA
Output Ripple	VPP	-	10	-	mVpp	1kHz to 10MHz
Operating Temperature	Toper	-40	-	85	°C
Storage Temperature	Tstg	-65	-	150	°C

Instructions for Use:

1. Supply Voltage (VDD):

   • Ensure the supply voltage is within the range of 2.7V to 5.5V.
   • The device will not function correctly outside this range.

2. Output Voltage (VOUT):

   • The output voltage is fixed at 3.3V. No external components are required to set this voltage.

3. Quiescent Current (IQ):

   • The quiescent current is typically 10μA with no load. This low current helps in minimizing power consumption in battery-operated devices.

4. Load Regulation (ΔVOUT):

   • The output voltage remains stable with changes in load current, varying by only 0.1% from 0mA to 500mA.

5. Line Regulation (ΔVOUT):

   • The output voltage remains stable with changes in input voltage, varying by only 0.1% over the input range of 2.7V to 5.5V.

6. Dropout Voltage (VDROPOUT):

   • The dropout voltage is typically 0.3V at a load current of 500mA. This means the input voltage must be at least 0.3V higher than the output voltage for the regulator to function properly.

7. Output Ripple (VPP):

   • The output ripple is typically 10mV peak-to-peak over the frequency range of 1kHz to 10MHz. Use appropriate bypass capacitors to minimize ripple.

8. Operating Temperature (Toper):

   • The device is designed to operate within the temperature range of -40°C to 85°C. Ensure adequate thermal management to keep the device within this range.

9. Storage Temperature (Tstg):

   • The device can be stored in temperatures ranging from -65°C to 150°C. However, avoid prolonged exposure to extreme temperatures.

Additional Notes:

• Bypass Capacitors:
  • It is recommended to use a 10μF tantalum or ceramic capacitor on the input and a 10μF ceramic capacitor on the output to ensure stability and reduce noise.
• PCB Layout:
  • Keep the traces short and wide to minimize inductance and resistance, which can affect performance.
• Thermal Considerations:
  • For high load currents, ensure proper heat dissipation by using a heatsink or a thermal pad on the PCB.

(For reference only)