Details

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BUY PNX5100EH/M2/B4 https://www.utsource.net/itm/p/6429655.html

Parameter	Description
Part Number	PNX5100EH/M2/B4
Type	Power Management IC
Function	High-Efficiency Synchronous Buck Converter
Input Voltage (VIN)	3.8V to 60V DC input voltage range
Output Voltage (VOUT)	Adjustable output voltage, typically set by external resistors
Switching Frequency	Programmable up to 2 MHz
Load Current	Up to 4A continuous load current
Efficiency	Up to 97% efficiency at typical operating conditions
Package Type	SOIC-8
Operating Temperature	-40°C to +85°C ambient temperature range
Protection Features	Overcurrent protection, overtemperature protection, short-circuit protection

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage to the VIN pin and ensure it is within the specified range of 3.8V to 60V.
   • Ensure a stable and clean power supply to prevent noise interference.

2. Output Configuration:

   • Set the desired output voltage using external resistors connected to the FB (feedback) pin.
   • Refer to the datasheet for specific resistor values corresponding to your required output voltage.

3. Inductor Selection:

   • Choose an inductor with a saturation current higher than the maximum load current.
   • The inductance value should be selected based on the switching frequency and ripple current requirements.

4. Capacitor Selection:

   • Input capacitors should have low ESR (Equivalent Series Resistance) to minimize voltage drop.
   • Output capacitors are essential for maintaining stability; choose them based on the load transient response requirement.

5. Layout Considerations:

   • Keep the loop area between the input capacitor and the buck converter as small as possible to reduce noise.
   • Place the output capacitor close to the load to minimize trace resistance and inductance.

6. Thermal Management:

   • Ensure adequate heat dissipation, especially under high load conditions.
   • If necessary, use a heatsink or thermal pad for better thermal performance.

7. Protection Settings:

   • Verify that all protection features (overcurrent, overtemperature, short-circuit) are correctly configured according to the application needs.

8. Testing and Validation:

   • After assembly, test the circuit under various load conditions to ensure stability and efficiency.
   • Validate the output voltage accuracy and adjust if necessary.

(For reference only)