aoz1022di-01 Alpha & Omega Semiconductor, aoz1022di-01 Datasheet - Page 2

• Manufacturer Part Number: aoz1022di-01
• Description: Ezbucktm 3a Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Ordering Information
Pin Configuration
Pin Description
Pin Number Pin Name
Rev.3.0 November 2011
Part Number
AOZ1022DI-01
1
2
3
4
5
6
7
8
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit
PGOOD
COMP
PGND
AGND
V
EN
FB
LX
IN
www.aosmd.com/web/quality/rohs_compliant.jsp
Ambient Temperature Range
Power ground. PGND needs to be electrically connected to AGND.
Supply voltage input. When V
the device starts up.
Analog ground. AGND is the reference point for controller section. AGND needs to
be electrically connected to PGND.
Feedback input. The FB pin is used to set the output voltage via a resistor divider
between the output and AGND.
External loop compensation pin. Connect a RC network between COMP and AGND
to compensate the control loop.
Enable pin. Pull EN to logic high to enable the device. Pull EN to logic low to disable
the device. if on/off control is not needed, connect it to V
Switching node. LX is the drain of the internal PFET. LX is used as the thermal pad of
the power stage.
Power Good Output. PGOOD is an open-drain output that indicates the status of out-
put voltage. PGOOD is pulled low when output is below 90% of the normal regula-
tion.
-40°C to +85°C
PGND
AGND
VIN
FB
1
2
3
4
5x4 DFN-8
(Top View)
www.aosmd.com
GND
LX
IN
rises above the UVLO threshold and EN is logic high,
Pin Function
8
7
6
5
PGOOD
LX
EN
COMP
for additional information.
Package
DFN 5x4
IN
and do not leave it open.
Environmental
Green Product
AOZ1022DI-01
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