AOZ1280
Ordering Information
Part Number
Ambient Temperature Range
Package
Environmental
AOZ1280CI
-40 °C to +85 °C
SOT23-6L
Green Product
RoHS Compliant
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/web/quality/rohs_compliant.jsp for additional information.
Pin Configuration
1
2
3
6
5
4
BST
GND
FB
LX
VIN
EN
SOT23-6L
(Top View)
Pin Description
Pin Number
Pin Name
Pin Function
1
BST
Bootstrap voltage input. High side driver supply. Connected to 10 nF capacitor between
BST and LX.
2
3
GND
FB
Ground.
Feedback input. It is regulated to 0.8 V. The FB pin is used to determine the PWM output
voltage via a resistor divider between the output and GND.
4
5
6
EN
VIN
LX
Enable pin. The enable pin is active high. Connect EN pin to VIN through current limiting
resistor. Do not leave the EN pin floating.
Supply voltage input. Input range from 3 V to 26 V. When VIN rises above the UVLO
threshold the device starts up.
PWM output connection to inductor.
Rev. 1.1 August 2011
www.aosmd.com
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AOS [ ALPHA & OMEGA SEMICONDUCTORS ]
