Details

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BUY FAN2108EMPX https://www.utsource.net/itm/p/4443057.html
TinyBuck? 3-24V Input, 8A, High-Efficiency, Integrated Synchronous Buck Regulator

Parameter	Symbol	Min	Typ	Max	Unit	Description
Input Voltage	V_IN	4.5	-	20	V	Operating input voltage range
Output Voltage	V_OUT	-	1.0	5.5	V	Adjustable output voltage
Switching Frequency	f_SW	-	600	1000	kHz	Internal oscillator frequency
Quiescent Current	I_Q	-	80	-	渭A	Supply current with no load
Shutdown Current	I_SD	-	1	-	渭A	Current consumption in shutdown mode
Load Regulation	-	-	0.3	-	%	Change in output voltage over load range
Line Regulation	-	-	0.3	-	%	Change in output voltage over line range
Dropout Voltage	V_DO	-	200	-	mV	Difference between input and output voltage at full load
Efficiency	畏	-	90	-	%	Power efficiency at typical operating conditions
Operating Temperature	T_OP	-40	-	85	掳C	Ambient temperature range

Instructions for FAN2108EMPX

1. Power Supply Connection:

   • Connect the input power supply to the VIN pin, ensuring it is within the specified input voltage range (4.5V to 20V).
   • Ground the GND pin properly.

2. Output Configuration:

   • Adjust the output voltage using external resistors connected to the FB pin according to the datasheet formula.
   • Ensure the output capacitor is placed close to the VOUT pin for stability.

3. Enable/Shutdown Control:

   • Apply a high signal to the EN pin to enable the device.
   • Pull the EN pin low to put the device into shutdown mode, reducing power consumption.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating near maximum load or in high ambient temperatures.
   • Use a heatsink or place the device on a PCB with sufficient copper area for thermal relief.

5. Component Selection:

   • Choose an inductor that matches the switching frequency and current requirements.
   • Select capacitors with appropriate ratings for input and output filtering.

6. Layout Guidelines:

   • Keep traces short and direct to minimize noise and improve efficiency.
   • Place decoupling capacitors close to the IC to ensure stable operation.

7. Testing:

   • After assembly, test the output voltage and regulation under different load conditions.
   • Verify proper operation by measuring the efficiency and temperature rise under typical operating conditions.

(For reference only)