Details

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BUY STR2A155D https://www.utsource.net/itm/p/12606838.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	2.7	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	-	3.3	-	V	Regulated output voltage
Output Current	IOUT	-	1.5	-	A	Continuous output current
Quiescent Current	IQ	-	40	-	渭A	Supply current in normal operation
Dropout Voltage	VDROPOUT	-	300	-	mV	Typical dropout voltage at full load
Load Regulation	-	-	1	-	%	Change in output voltage over load change
Line Regulation	-	-	0.2	-	%	Change in output voltage over line change
PSRR	-	-	60	-	dB	Power supply rejection ratio at 1kHz
Operating Temp.	TOPR	-40	-	85	掳C	Operating temperature range
Storage Temp.	TSTG	-55	-	150	掳C	Storage temperature range

Instructions for STR2A155D

1. Power Supply Connection:

   • Connect the input voltage (VIN) to the power supply within the specified range of 2.7V to 5.5V.
   • Ensure proper bypass capacitors are placed close to the input and output pins to stabilize the regulator.

2. Output Configuration:

   • The STR2A155D provides a fixed output voltage of 3.3V. No external components are required for setting this voltage.

3. Load Requirements:

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

4. Thermal Considerations:

   • Operate the device within the temperature range of -40掳C to +85掳C for reliable performance.
   • For applications where the device might approach its thermal limits, consider adding heat sinks or improving airflow around the component.

5. Capacitor Selection:

   • Use capacitors with low ESR values for both input and output to ensure stability and minimize ripple.
   • Recommended capacitor types include ceramic capacitors with X7R dielectric for their stability over temperature.

6. PCB Layout:

   • Keep the PCB traces short and wide between the regulator and the load to reduce parasitic inductance and resistance.
   • Place the ground plane beneath the regulator to improve heat dissipation and signal integrity.

7. Protection Circuits:

   • Incorporate appropriate protection circuits such as reverse polarity protection, overcurrent protection, and transient voltage suppression to safeguard the regulator from potential faults.

By following these guidelines, you can ensure optimal performance and reliability of the STR2A155D in your application.

(For reference only)