aoz1280 Alpha & Omega Semiconductor, aoz1280 Datasheet - Page 2

• Manufacturer Part Number: aoz1280
• Description: Ezbucktm 1.2 A Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Ordering Information
Pin Configuration
Pin Description
Pin Number
Rev. 1.0 May 2011
1
2
3
4
5
6
Part Number
AOZ1280CI
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit
Pin Name
www.aosmd.com/web/quality/rohs_compliant.jsp
GND
BST
VIN
EN
FB
LX
Ambient Temperature Range
Bootstrap voltage input. High side driver supply. Connected to 10 nF capacitor between
BST and LX.
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.
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.
-40 °C to +85 °C
GND
BST
FB
1
2
3
www.aosmd.com
SOT23-6L
(Top View)
6
5
4
Pin Function
LX
VIN
EN
SOT23-6L
Package
for additional information.
Environmental
RoHS Compliant
Green Product
AOZ1280
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