Details

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BUY ST10R272LT1 https://www.utsource.net/itm/p/12535037.html

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	VIN	2.7	-	5.5	V	Operating input voltage range
Output Voltage	VOUT	1.8	-	3.3	V	Programmable output voltage range
Quiescent Current	IQ	-	20	-	μA	Supply current in active mode
Shutdown Current	ISD	-	0.1	-	μA	Supply current in shutdown mode
Load Regulation		-	0.2	-	%	Change in output voltage over load range
Line Regulation		-	0.1	-	%	Change in output voltage over input voltage range
Dropout Voltage	VDROPOUT	-	200	-	mV	Voltage difference between VIN and VOUT at max IOUT
Output Current	IOUT	-	250	-	mA	Maximum continuous output current

Instructions for ST10R272LT1

1. Power Supply Connection:

   • Connect the input voltage (VIN) within the specified range (2.7V to 5.5V) to the input pin.
   • Ensure a stable power supply to avoid fluctuations that can affect performance.

2. Output Configuration:

   • Set the desired output voltage using external resistors or by selecting preset configurations if available.
   • Verify the output voltage (VOUT) is within the programmable range of 1.8V to 3.3V.

3. Quiescent and Shutdown Current Management:

   • Monitor the quiescent current (IQ) to ensure efficient operation during active mode.
   • Utilize the shutdown feature to minimize power consumption when the device is not in use, reducing the shutdown current (ISD).

4. Regulation Monitoring:

   • Check load regulation and line regulation to ensure stability of the output voltage under varying conditions.
   • Maintain dropout voltage (VDROPOUT) considerations to prevent the regulator from entering dropout mode.

5. Thermal Considerations:

   • Ensure adequate heat dissipation, especially when operating near the maximum output current (IOUT).
   • Place the component away from other heat-generating devices to maintain optimal operating temperatures.

6. PCB Layout Recommendations:

   • Use short and wide traces for power and ground connections to minimize inductance and resistance.
   • Place decoupling capacitors close to the input and output pins to improve transient response and stability.

(For reference only)