Datasheet
XL1507
3A 150KHz 40V Buck DC to DC Converter
Pin Configurations (TO252-5L)
Figure2. Pin Configuration of XL1507 (Top View)
Table 1 Pin Description
Pin Number
Pin Name Description
Supply Voltage Input Pin. XL1507 operates from a 4.5V to
40V DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
1
VIN
Power Switch Output Pin (SW). Output is the switch node that
supplies power to the output.
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 XL1507.
2
3
OUTPUT
GND
Feedback Pin (FB). Through an external resistor divider
4
5
FEEDBACK network, Feedback senses the output voltage and regulates it.
The feedback threshold voltage is 1.23V.
Enable Pin. Drive ON/OFF pin low to turn on the device, drive
ON/OFF
it high to turn it off. Floating is default low.
Rev 2.0
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2
ETC [ ETC ]
