Details

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BUY XL1509-5 https://www.utsource.net/itm/p/11547741.html

Parameter	Description	Value
Input Voltage	Operating range of input voltage	4.5V to 36V
Output Voltage	Fixed output voltage	5V
Output Current	Maximum continuous output current	2A
Efficiency	Typical efficiency at full load	Up to 95%
Switching Frequency	Internal switching frequency	1.2MHz
Quiescent Current	Current consumption in shutdown mode	<1μA
Protection Features	Overcurrent, overvoltage, and thermal protection	Included
Operating Temperature	Range for normal operation	-40°C to +85°C
Package Type	Package type and dimensions	SOT-23-6 (3.0mm x 3.0mm)

Instructions for Use

1. Circuit Connection:

   • Connect the input voltage to the VIN pin.
   • Connect the ground to the GND pin.
   • Connect the load to the VOUT pin.
   • Place a 1μF ceramic capacitor between VIN and GND close to the IC for input filtering.
   • Place a 1μF ceramic capacitor between VOUT and GND close to the IC for output filtering.

2. Inductor Selection:

   • Choose an inductor with a value of 1.0μH to 4.7μH for optimal performance.
   • Ensure the inductor has a saturation current rating higher than the maximum output current.

3. Capacitor Selection:

   • Use X5R or X7R ceramic capacitors for both input and output filtering.
   • Ensure the capacitors have a voltage rating at least 1.5 times the maximum expected voltage.

4. PCB Layout:

   • Keep the traces between the inductor and the IC as short as possible to minimize parasitic inductance.
   • Use wide traces for the ground plane to ensure good heat dissipation.

5. Thermal Considerations:

   • The IC is designed to operate within a wide temperature range, but ensure adequate ventilation or heat sinking if operating at high temperatures or under high load conditions.

6. Protection:

   • The IC includes built-in overcurrent, overvoltage, and thermal protection. However, it is recommended to use external fuses or circuit breakers for additional safety in critical applications.

7. Shutdown Mode:

   • To put the IC into shutdown mode, pull the SHDN pin low. This will reduce the quiescent current to less than 1μA.

8. Storage and Handling:

   • Store the IC in a dry environment and handle with care to avoid damage from electrostatic discharge (ESD).

(For reference only)