Details

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BUY SM15T39A https://www.utsource.net/itm/p/11565514.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	V_IN	4.5	-	28	V	Operating input voltage range
Output Voltage	V_OUT	-	3.3	-	V	Fixed output voltage
Output Current	I_OUT	-	1.5	3	A	Continuous output current
Quiescent Current	I_Q	-	60	-	渭A	Quiescent current at no load
Dropout Voltage	V_DO	-	0.3	-	V	Dropout voltage at I_OUT = 3A
Load Regulation	-	-	1	-	%	Change in V_OUT with varying I_OUT
Line Regulation	-	-	1	-	%	Change in V_OUT with varying V_IN
Thermal Shutdown	T_SHD	-	160	-	掳C	Temperature at which device shuts down
Operating Temp	T_OP	-40	-	125	掳C	Operating temperature range
Storage Temp	T_STG	-65	-	150	掳C	Storage temperature range

Instructions:

1. Power Supply Connection:

   • Connect the input voltage (V_IN) to the input pin.
   • Ensure the input voltage is within the specified range (4.5V to 28V).

2. Output Configuration:

   • The output voltage (V_OUT) is fixed at 3.3V.
   • Connect the output pin to your load.

3. Grounding:

   • Connect the ground (GND) pin to the common ground of your circuit.

4. Thermal Management:

   • Ensure proper heat dissipation, especially when operating at high output currents.
   • Use a heatsink if necessary to keep the junction temperature below 160掳C.

5. Capacitors:

   • Place a 10渭F tantalum capacitor or a 10渭F ceramic capacitor between the input and ground pins close to the device.
   • Place a 10渭F tantalum capacitor or a 10渭F ceramic capacitor between the output and ground pins close to the device.

6. Load Regulation:

   • The load regulation is typically 1%, meaning the output voltage will change by 1% for variations in load current.

7. Line Regulation:

   • The line regulation is typically 1%, meaning the output voltage will change by 1% for variations in input voltage.

8. Thermal Shutdown:

   • The device will shut down if the junction temperature exceeds 160掳C to prevent damage.

9. Operating and Storage Temperature:

   • Ensure the device operates within the temperature range of -40掳C to 125掳C.
   • Store the device within the temperature range of -65掳C to 150掳C.

10. Handling Precautions:

    • Handle the device with care to avoid static damage.
    • Follow proper soldering techniques to ensure reliable connections.

(For reference only)