Details

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BUY SC1117DG https://www.utsource.net/itm/p/12536139.html

Parameter	Symbol	Min	Typical	Max	Unit
Input Voltage	VIN	2.0	-	6.0	V
Output Voltage	VOUT	1.2	-	5.0	V
Dropout Voltage	VD	-	0.4	-	V
Quiescent Current	IQ	-	0.5	-	mA
Load Regulation	-	-	0.2%	-	%
Line Regulation	-	-	0.2%	-	%
Output Current	IOUT	-	100	-	mA
Operating Temperature	TOPR	-40	-	85	°C
Storage Temperature	TSTG	-65	-	150	°C

Instructions for Using SC1117DG

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.0V to 6.0V.
   • Avoid exceeding the maximum input voltage to prevent damage to the device.

2. Output Voltage (VOUT):

   • The output voltage can be set between 1.2V and 5.0V using external resistors.
   • Use the formula ( V_ = 1.25 left(1 + fracright) ) to calculate the required resistor values.

3. Dropout Voltage (VD):

   • The dropout voltage is typically 0.4V. Ensure that the input voltage is at least 0.4V higher than the desired output voltage to maintain regulation.

4. Quiescent Current (IQ):

   • The quiescent current is typically 0.5mA. This is the current consumed by the regulator when no load is applied.

5. Load Regulation:

   • The load regulation is typically 0.2%, indicating the stability of the output voltage under varying load conditions.

6. Line Regulation:

   • The line regulation is typically 0.2%, indicating the stability of the output voltage under varying input voltage conditions.

7. Output Current (IOUT):

   • The maximum continuous output current is 100mA. Ensure that the load does not exceed this limit to avoid overheating or damage.

8. Operating Temperature (TOPR):

   • The operating temperature range is from -40°C to 85°C. Ensure that the device is used within this range to maintain reliable performance.

9. Storage Temperature (TSTG):

   • The storage temperature range is from -65°C to 150°C. Store the device in a dry environment within this temperature range to prevent damage.

10. PCB Layout Considerations:

    • Place the input and output capacitors as close as possible to the regulator to minimize noise and improve stability.
    • Use a ground plane to help dissipate heat and reduce noise.

11. Capacitor Selection:

    • Use ceramic capacitors with low ESR for both input and output. Typical values are 1μF for the input and 10μF for the output.
    • Ensure the capacitors have a voltage rating higher than the maximum expected voltage on their respective pins.

12. Thermal Management:

    • If the regulator will be operating near its maximum output current, consider adding a heatsink to improve thermal performance.
    • Ensure adequate airflow around the regulator to prevent overheating.

By following these instructions, you can ensure optimal performance and reliability of the SC1117DG regulator in your application.

(For reference only)