Details

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BUY XLSEMI XL6019E1 https://www.utsource.net/itm/p/12611538.html

Parameter	Specifications
Part Number	XL6019E1
Description	DC-DC Buck Converter
Input Voltage Range	4.5V to 28V
Output Voltage Range	Adjustable from 0.9V to VIN
Output Current	Up to 3A
Switching Frequency	1.2MHz
Quiescent Current	<10渭A (Shutdown mode)
Operating Temperature	-40掳C to +85掳C
Package Type	SOT23-6
Protection Features	Over-current protection, thermal shutdown, short-circuit protection

Instructions for Use:

1. Power Input Connection:

   • Connect the input power source to the VIN and GND pins. Ensure the input voltage is within the specified range.

2. Setting Output Voltage:

   • The output voltage can be set using an external resistor divider network connected between VOUT, FB, and GND.
   • Use the formula ( V_ = V_ times (1 + frac) ), where ( V_ = 0.9V ).

3. Component Placement:

   • Place the inductor close to the SW pin for efficient switching performance.
   • Ensure capacitors are placed near VIN and VOUT to minimize noise and improve stability.

4. Thermal Considerations:

   • Ensure adequate heat dissipation if operating at high currents or in high ambient temperatures.

5. Protection Circuits:

   • The device includes built-in over-current and thermal protection; no additional components are required for these functions.

6. Enabling/Disabling:

   • To enable/disable the converter, use the EN pin. A high signal on EN enables the converter, while a low signal disables it.

7. Layout Recommendations:

   • Follow good PCB layout practices, keeping traces short and wide, especially for high current paths, to reduce losses and improve efficiency.

(For reference only)