Details

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BUY NCP81272MNTXG https://www.utsource.net/itm/p/9775159.html

Parameter	Symbol	Conditions	Min	Typ	Max	Unit
Input Voltage	VIN	Operating	4.5	-	18	V
Output Voltage	VOUT	Adjustable	-	-	-	V
Output Current	IOUT	Continuous	-	2	3	A
Quiescent Current	IQ	VIN = 12V, no load	-	70	-	渭A
Dropout Voltage	VDROPOUT	IOUT = 3A, VIN = 5V	-	300	-	mV
Shutdown Current	ISD	VIN = 12V, EN = 0V	-	1	-	渭A
Enable Threshold	VEN(th)	Rising	-	1.2	-	V
Disable Threshold	VEN(th)	Falling	-	0.8	-	V
Thermal Shutdown	TSD	-	-	160	-	掳C

Instructions for NCP81272MNTXG:

1. Power Supply Connection:

   • Connect the input voltage (VIN) to a supply within the specified range of 4.5V to 18V.
   • Ensure proper bypass capacitors are placed close to the input and output pins to stabilize the regulator.

2. Output Configuration:

   • The output voltage (VOUT) is adjustable. Use external resistors to set the desired output voltage according to the datasheet formula.

3. Enable Pin:

   • Apply a voltage higher than the enable threshold (VEN(th)) on the enable pin to activate the regulator.
   • To disable the regulator, pull the enable pin below the disable threshold.

4. Thermal Considerations:

   • Monitor the thermal shutdown temperature (TSD) to ensure the device does not overheat.
   • Provide adequate heat sinking if operating at high currents or in high ambient temperatures.

5. Quiescent Current and Efficiency:

   • Be aware of the quiescent current (IQ) to optimize power efficiency, especially in low-power applications.

6. Shutdown Mode:

   • In shutdown mode, the current consumption drops to the shutdown current (ISD), minimizing power loss when the regulator is not active.

7. Dropout Voltage:

   • Ensure that the input voltage exceeds the sum of the output voltage and dropout voltage (VDROPOUT) to maintain regulation during high load conditions.

(For reference only)