aoz1038di Alpha & Omega Semiconductor, aoz1038di Datasheet - Page 2

• Manufacturer Part Number: aoz1038di
• Description: Ezbucktm 6 A Synchronous Buck Regulator
• Manufacturer: Alpha & Omega Semiconductor

Ordering Information
Pin Configuration
Pin Description
Rev. 1.2 February 2011
Exposed Pad
5x6 DFN-8
7, 8
1
2
3
4
5
6
Part Number
AOZ1038DI
AOZ1038PI
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
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Pin Number
PGND
AGND
Exposed Pad
Pad SO-8
Exposed
VIN
FB
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7, 8
1
2
3
4
5
6
1
2
3
4
5x6 DFN-8
(Top View)
Ambient Temperature Range
(LX)
PAD
Pin Name
COMP
PGND
AGND
-40 °C to +85 °C
VIN
EN
NC
FB
LX
8
7
6
5
NC
NC
EN
COMP
Power ground. PGND needs to be electrically connected to AGND.
Supply voltage input. When VIN rises above the UVLO threshold and EN
is logic high, 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 resistive
voltage 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 VIN and
do not leave it open.
No Connect pin. Pin 7 and 8 are not internally connected. Connect these
two pins externally to LX and use them for better thermal performance.
Switching node. LX is the drain of the internal PFET. LX is used as the
thermal pad of the power stage.
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Exposed Pad SO-8
PGND
AGND
5x6 DFN-8
Package
for additional information.
VIN
FB
Exposed Pad SO-8
Pin Function
1
2
3
4
(Top View)
(LX)
PAD
8
7
6
5
Environmental
Green Product
NC
NC
EN
COMP
AOZ1038
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