AMS2566
Pin Configurations
for TO263/TO220/TO252
:
Important Note :
Pin3
SW is shorted to Tab (heat -sink is not ground)
Table 1 Pin Description
Pin Number
1
Pin Name
GND
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
AMS2566.
Feedback Pin (FB). Through an external resistor divider
network, FB senses the output voltage and regulates it. The
feedback threshold voltage is
0.8V.
Power Switch Output Pin (SW). SW is the switch node that
supplies power to the output.
Enable Pin. Drive EN pin high to turn on the device, drive it
low to turn it off. Floating is default high.
Supply Voltage Input
AMS2566
operates from a 3.6V to
25V DC voltage. Bypass Vin to GND with a suitably large
capacitor to eliminate noise on the input.
2
3
4
5
FB
SW
EN
VIN
2
Advanced Monolithic Systems
http://www.ams-semitech.com
AMS [ Advanced Monolithic Systems Ltd ]
