AOZ1038 データシートの表示（PDF） - Alpha and Omega Semiconductor

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AOZ1038

EZBuck™ 6 A Synchronous Buck Regulator

Alpha and Omega Semiconductor 

AOZ1038

Ordering Information

Part Number

AOZ1038DI

AOZ1038PI

Ambient Temperature Range

-40 °C to +85 °C

Package

5x6 DFN-8

Exposed Pad SO-8

Environmental

Green Product

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

PGND 1

VIN 2

AGND 3

FB 4

PAD

(LX)

8 NC

7 NC

6 EN

5 COMP

5x6 DFN-8

(Top View)

PGND 1

VIN 2

AGND 3

FB 4

PAD

(LX)

8 NC

7 NC

6 EN

5 COMP

Exposed Pad SO-8

(Top View)

Pin Description

Pin Number

5x6 DFN-8

Exposed

Pad SO-8

1

1

2

2

3

3

4

4

5

5

6

6

7, 8

7, 8

Exposed Pad Exposed Pad

Pin Name

PGND

VIN

AGND

FB

COMP

EN

NC

LX

Pin Function

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.

Rev. 1.2 February 2011

www.aosmd.com

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