Datasheet
XL2012
5V/2.4A 150KHz 40V Buck DC to DC Converter For USB Interface
Pin Configurations
Figure2. Pin Configuration of XL2012 (Top View)
Table 1 Pin Description
Pin Number
Pin Name Description
1
2
FB
NC
Feedback Pin (FB). The feedback threshold voltage is 5V.
No Connected.
Internal Voltage Regulator Bypass Capacity. In typical system
application, The VC pin connect a 1uf capacity to VIN.
Supply Voltage Input Pin. XL2012 operates from 8V to 40V
DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
3
VC
VIN
SW
4
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
5,6
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 XL2012.
7,8
GND
Rev 1.0
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