Details

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BUY LM4250CJ-8 https://www.utsource.net/itm/p/11721703.html

Parameter	Symbol	Min	Typ	Max	Unit
Input Voltage Range	VIN	2.7	-	5.5	V
Output Voltage Range	VOUT	1.2	-	3.3	V
Quiescent Current	IQ	-	1.5	-	μA
Dropout Voltage	VDROP	-	100	-	mV
Load Regulation	-	-	0.1	-	%
Line Regulation	-	-	0.1	-	%
PSRR (Power Supply Rejection Ratio) at 1 kHz	PSRR	-	65	-	dB
Operating Temperature	TOP	-40	-	125	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for Using LM4250CJ-8

1. Input Voltage:

   • Ensure the input voltage is within the specified range of 2.7V to 5.5V to avoid damage to the device.

2. Output Voltage:

   • The output voltage can be set between 1.2V and 3.3V using external resistors. Refer to the datasheet for specific resistor values.

3. Quiescent Current:

   • The quiescent current is typically 1.5μA, which is important for low-power applications.

4. Dropout Voltage:

   • The dropout voltage is typically 100mV, meaning the input voltage should be at least 100mV higher than the output voltage for proper regulation.

5. Load Regulation:

   • The load regulation is 0.1%, indicating that the output voltage will remain stable even with changes in load current.

6. Line Regulation:

   • The line regulation is also 0.1%, ensuring that the output voltage remains stable with variations in input voltage.

7. PSRR (Power Supply Rejection Ratio):

   • At 1kHz, the PSRR is 65dB, which means the device effectively filters out noise from the power supply.

8. Operating Temperature:

   • The device can operate in temperatures ranging from -40°C to 125°C.

9. Storage Temperature:

   • Store the device in temperatures ranging from -65°C to 150°C to ensure its longevity.

10. Capacitors:

    • Use appropriate input and output capacitors to stabilize the voltage and filter out noise. Refer to the datasheet for recommended capacitor values and types.

11. PCB Layout:

    • Follow good PCB layout practices to minimize noise and ensure optimal performance. Keep the input and output capacitors close to the device and use wide traces for power lines.

12. Handling:

    • Handle the device with care to avoid static damage. Use anti-static wrist straps and mats when handling sensitive components.

For more detailed information, refer to the LM4250CJ-8 datasheet provided by the manufacturer.

(For reference only)