Details

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BUY APC2020B https://www.utsource.net/itm/p/12535397.html

Parameter	Description	Value
Part Number	Component Identifier	APC2020B
Type	Component Type	Power Supply Controller
Input Voltage Range	Range of Input Voltages Supported	4.5V to 14V DC
Output Voltage Range	Range of Output Voltages Adjustable	1.2V to 12V DC
Maximum Output Current	Maximum Current the Device Can Supply	2A
Operating Temperature Range	Temperature Range for Reliable Operation	-40°C to +85°C
Storage Temperature Range	Temperature Range for Storage	-65°C to +150°C
Quiescent Current	Current Consumed by the Device When Active	200μA (Typical)
Shutdown Current	Current Consumed by the Device in Shutdown Mode	1μA (Typical)
Package Type	Physical Package of the Component	SOIC-8
Pin Count	Number of Pins on the Component	8
Frequency Range	Operating Frequency Range	100kHz to 1MHz
Efficiency	Efficiency at Maximum Load	Up to 95%
Protection Features	Built-in Protection Mechanisms	Overcurrent, Overvoltage, Thermal Shutdown

Instructions for Use:

1. Power Supply Connection:

   • Connect the input voltage to the VIN pin.
   • Ensure the input voltage is within the specified range (4.5V to 14V DC).

2. Output Configuration:

   • Set the desired output voltage using the external feedback resistor network connected to the FB pin.
   • Refer to the datasheet for specific resistor values.

3. Inductor Selection:

   • Choose an inductor with a value that matches the desired operating frequency and current requirements.
   • The inductor should be placed between the SW (Switch) pin and the output capacitor.

4. Capacitor Selection:

   • Use a low ESR ceramic capacitor for the input (CIN) and output (COUT) to ensure stability and reduce ripple.
   • Typical values are 10μF for CIN and 22μF for COUT.

5. Thermal Management:

   • Ensure adequate heat dissipation, especially at high load currents.
   • Consider using a heatsink if necessary.

6. Shutdown Control:

   • To put the device into shutdown mode, pull the SHDN pin low.
   • To activate the device, pull the SHDN pin high or leave it floating.

7. PCB Layout:

   • Place the power components (inductor, capacitors) close to the controller to minimize parasitic effects.
   • Use wide traces for power paths to reduce resistance and improve efficiency.

8. Testing:

   • After assembly, test the output voltage and current to ensure the device is functioning correctly.
   • Monitor the temperature of the device during operation to ensure it stays within the safe operating range.

(For reference only)