Details

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BUY SM51108PEL https://www.utsource.net/itm/p/12612405.html

Parameter	Symbol	Min	Typical	Max	Unit	Condition
Input Voltage	VIN	2.7	-	5.5	V	-
Output Voltage	VOUT	-	3.3	-	V	-
Output Current	IOUT	-	-	1.5	A	-
Quiescent Current	IQ	-	25	-	渭A	VOUT = 3.3V, IOUT = 0mA
Dropout Voltage	VDROP	-	200	-	mV	IOUT = 1.5A, VIN = 5.0V
Shutdown Current	ISD	-	0.1	-	渭A	VIN = 5.0V, EN = Low
Operating Temperature	TOP	-40	-	85	掳C	-
Storage Temperature	TSTG	-65	-	150	掳C	-
Thermal Resistance	胃JA	-	70	-	掳C/W	-

Instructions for Use:

1. Input Voltage (V_IN):

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

2. Output Voltage (V_OUT):

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

3. Output Current (I_OUT):

   • The maximum output current is 1.5A. Do not exceed this limit to prevent overheating and potential damage.

4. Quiescent Current (I_Q):

   • The quiescent current is typically 25渭A when no load is connected. This is important for low-power applications.

5. Dropout Voltage (V_DROP):

   • The dropout voltage is typically 200mV at full load. Ensure that the input voltage is at least 200mV higher than the output voltage to maintain regulation.

6. Shutdown Current (I_SD):

   • When the enable pin (EN) is set to low, the shutdown current is approximately 0.1渭A. Use this feature to reduce power consumption when the device is not in use.

7. Operating Temperature (T_OP):

   • The operating temperature range is from -40掳C to 85掳C. Ensure that the device operates within this range to avoid performance degradation or failure.

8. Storage Temperature (T_STG):

   • The storage temperature range is from -65掳C to 150掳C. Store the device in a dry, cool place to ensure long-term reliability.

9. Thermal Resistance (胃_JA):

   • The thermal resistance from junction to ambient is 70掳C/W. Use appropriate heat sinking if the device will be operated at high power levels to maintain a safe operating temperature.

10. Enable Pin (EN):

    • The enable pin can be used to control the operation of the device. Set EN to high to turn on the regulator and low to turn it off.

11. Capacitors:

    • Use a 1渭F ceramic capacitor on the input and a 1渭F ceramic capacitor on the output for stability. Place these capacitors as close as possible to the device to minimize noise and improve transient response.

12. PCB Layout:

    • Ensure proper PCB layout with wide traces for power and ground to reduce resistance and inductance. Keep the input and output capacitors close to the device to minimize parasitic inductance.

(For reference only)