Datasheet
XL4013
4A 180KHz 36V Buck DC to DC Converter
Pin Configurations
Figure2. Pin Configuration of XL4013 (Top View)
Table 1 Pin Description
Pin Number
Pin Name Description
Ground Pin. Care must be taken in layout. This pin should be
placed outside of the Schottky Diode to output capacitor
ground path to prevent switching current spikes from inducing
voltage noise into XL4013.
Feedback Pin (FB). Through an external resistor divider
network, FB senses the output voltage and regulates it. The
feedback threshold voltage is 1.25V.
1
GND
FB
2
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
3
4
SW
VC
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uf capacity to VIN.
Supply Voltage Input Pin. XL4013 operates from a 8V to 36V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
5
VIN
Rev 1.3
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2
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