Details

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BUY APT801R4BN https://www.utsource.net/itm/p/8338842.html

Parameter	Description
Part Number	APT801R4BN
Type	Power Management IC
Function	Buck Converter
Input Voltage (Min)	2.7V
Input Voltage (Max)	5.5V
Output Voltage (Fixed)	1.2V
Output Current (Max)	4A
Switching Frequency	2MHz
Package Type	QFN-16 (3x3mm)
Operating Temperature	-40°C to +85°C
Storage Temperature	-65°C to +150°C
Pin Count	16

Instructions for Use:

1. Circuit Design:

   • Ensure the input voltage range is between 2.7V and 5.5V.
   • Connect the output capacitor close to the device to maintain stability.

2. Thermal Considerations:

   • The QFN package provides a low thermal resistance, enhancing heat dissipation. Place thermal vias under the exposed pad for better performance.

3. PCB Layout:

   • Keep power traces short and wide to minimize inductance and resistance.
   • Use ground planes liberally to reduce noise and improve thermal performance.

4. Component Selection:

   • Choose output capacitors with low ESR (Equivalent Series Resistance) to ensure stable operation.
   • Select inductors that can handle the maximum current without saturating.

5. Application:

   • Ideal for portable devices requiring efficient power conversion from a single-cell Li-ion battery or similar sources.

6. Safety:

   • Do not exceed the maximum operating temperature to avoid damage.
   • Follow proper handling procedures to prevent electrostatic discharge (ESD) damage.

(For reference only)