Details

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BUY SGM4872YS8G/TR https://www.utsource.net/itm/p/12596511.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Continuous	2.7	-	5.5	V
Output Voltage	VOUT	Adjustable	0.6	-	3.3	V
Output Current	IOUT	Continuous	-	2	3	A
Quiescent Current	IQ	VIN = 5V, VOUT = 3.3V, IOUT = 0A	-	1.2	-	mA
Shutdown Current	ISD	VIN = 5V, SHDN = 0V	-	0.1	-	μA
Dropout Voltage	VDROPOUT	IOUT = 3A, VOUT = 3.3V	-	0.5	-	V
Load Regulation	ΔVOUT/ΔIOUT	IOUT = 0 to 3A, VIN = 5V	-	0.1	-	%
Line Regulation	ΔVOUT/ΔVIN	VIN = 2.7 to 5.5V, IOUT = 3A	-	0.1	-	%
Ripple Rejection	PSRR	f = 1kHz, VIN = 5V, IOUT = 3A	-	70	-	dB
Operating Temperature	TOPR	-	-40	-	85	°C
Storage Temperature	TSTG	-	-65	-	150	°C

Instructions for Use:

1. Input Voltage (VIN):

   • Ensure the input voltage is within the range of 2.7V to 5.5V.
   • Avoid exceeding these limits to prevent damage to the device.

2. Output Voltage (VOUT):

   • The output voltage can be adjusted between 0.6V and 3.3V.
   • Use external resistors to set the desired output voltage according to the datasheet formula.

3. Output Current (IOUT):

   • The device can provide a continuous output current up to 3A.
   • For higher currents, ensure proper heat dissipation and consider using additional cooling measures.

4. Quiescent Current (IQ):

   • The quiescent current is typically 1.2mA under nominal conditions.
   • This value helps in estimating power consumption when the device is active but not driving a load.

5. Shutdown Current (ISD):

   • When the shutdown pin (SHDN) is pulled low, the device enters a low-power mode with a shutdown current of 0.1μA.
   • Use this feature to conserve power in battery-operated applications.

6. Dropout Voltage (VDROPOUT):

   • The dropout voltage is 0.5V at full load (3A).
   • Ensure the input voltage is at least 0.5V higher than the output voltage to maintain regulation.

7. Load Regulation:

   • The load regulation is 0.1% over the load range from 0 to 3A.
   • This indicates the stability of the output voltage under varying load conditions.

8. Line Regulation:

   • The line regulation is 0.1% over the input voltage range from 2.7V to 5.5V.
   • This ensures that the output voltage remains stable even when the input voltage fluctuates.

9. Ripple Rejection (PSRR):

   • The power supply rejection ratio (PSRR) is 70dB at 1kHz.
   • This helps in filtering out noise from the input power supply, maintaining a clean output voltage.

10. Operating Temperature (TOPR):

    • The device operates reliably over a temperature range from -40°C to 85°C.
    • Ensure the operating environment does not exceed these limits to avoid performance degradation or failure.

11. Storage Temperature (TSTG):

    • The device can be stored at temperatures ranging from -65°C to 150°C.
    • Proper storage conditions help maintain the reliability and performance of the device.

12. Layout Considerations:

    • Place the input and output capacitors close to the device to minimize parasitic inductance.
    • Use a ground plane to improve thermal performance and reduce noise.

13. Thermal Management:

    • Ensure adequate heat sinking if the device is expected to operate at high output currents or in high ambient temperatures.
    • Monitor the device temperature to prevent overheating and potential damage.

By following these instructions, you can ensure optimal performance and reliability of the SGM4872YS8G/TR.

(For reference only)