Details

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BUY ST1S14PHR https://www.utsource.net/itm/p/12526279.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Input Voltage	V_IN	2.7	-	5.5	V
Output Voltage	V_OUT	3.3	3.3	3.3	V	Fixed
Output Current	I_OUT	-	1.5	1.5	A
Quiescent Current	I_Q	-	0.8	1.2	mA
Dropout Voltage	V_DO	-	0.3	0.6	V
Load Regulation	-	-	0.5	1.0	%
Line Regulation	-	-	0.2	0.5	%
Ripple Rejection	-	50	70	90	dB	@ 1kHz
Operating Temperature	T_OP	-40	-	85	°C
Storage Temperature	T_STG	-65	-	150	°C
Thermal Resistance (θJA)	-	-	65	-	°C/W

Instructions for Use:

1. Input Voltage Range:

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

3. Output Current:

   • The device can provide up to 1.5A of continuous output current. Ensure the load does not exceed this limit to prevent overheating or damage.

4. Quiescent Current:

   • The quiescent current is typically around 0.8mA and can vary between 0.8mA and 1.2mA. This should be considered in low-power applications.

5. Dropout Voltage:

   • The dropout voltage is typically 0.3V and can vary between 0.3V and 0.6V. Ensure the input voltage is at least 0.6V higher than the output voltage to maintain regulation.

6. Load Regulation:

   • The load regulation is typically 0.5% and can vary between 0.5% and 1.0%. This indicates the change in output voltage with varying load conditions.

7. Line Regulation:

   • The line regulation is typically 0.2% and can vary between 0.2% and 0.5%. This indicates the change in output voltage with varying input voltage.

8. Ripple Rejection:

   • The ripple rejection is typically 70dB and can vary between 50dB and 90dB at 1kHz. This helps in filtering out input voltage ripple.

9. Operating Temperature:

   • The device is designed to operate within the temperature range of -40°C to 85°C. Ensure the ambient temperature does not exceed these limits.

10. Storage Temperature:

    • The device can be stored in temperatures ranging from -65°C to 150°C without damage.

11. Thermal Resistance:

    • The thermal resistance (θJA) is typically 65°C/W. Ensure proper heat dissipation if the device is expected to operate at high power levels or in high-temperature environments.

12. Mounting:

    • Mount the device on a PCB with adequate clearance and ensure good thermal management, especially if operating near the maximum current or temperature limits.

13. Capacitors:

    • Use appropriate input and output capacitors to stabilize the voltage and reduce ripple. Typical values are 10μF for the input and 10μF for the output, but refer to the datasheet for specific recommendations.

14. Polarity:

    • Ensure correct polarity when connecting the input and output. Reverse polarity can damage the device.

15. Handling:

    • Handle the device with care to avoid static discharge, which can damage sensitive components. Use ESD protection where necessary.

(For reference only)