AOZ1284
Ordering Information
Part Number
AOZ1284PI
Temperature Range
Package
Environmental
Green Product
-40°C to +85°C
EPAD SO-8
AOZ1284PI-1
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Pin Configuration
1
2
3
4
8
7
6
5
LX
BST
EN
SS
Exposed
PAD
GND
FSW
FB
VIN
COMP
EPAD SO-8
(Top View)
Pin Description
Part Number
Pin Name
LX
Pin Function
PWM Output Pin. Connect to inductor.
1
2
BST
Bootstrap Voltage Pin. Driver supply for High Side NMOS. Connected to
100nF capacitor between BST and LX.
3
4
5
6
GND
FSW
COMP
FB
Ground Pin.
Frequency Bias Pin. Connect to resistor to determine switching frequency.
Compensation Pin. Connect to Resistor and Capacitor for system stability.
Feedback Pin. It is regulated to 0.8V. The FB pin is used to determine the
PWM output voltage via a resistor divider between the Output and Ground.
7
SS
EN
VIN
Soft Start Pin.
Enable Pin.
8
Exposed PAD
Supply Voltage Pin.
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Page 2 of 14
Rev. 0.5 March 2012
AOS [ ALPHA & OMEGA SEMICONDUCTORS ]
