A8672 datasheet(23/24 Pages) ALLEGRO

Part #	A8672

Description	Fixed Frequency High Current Synchronous Buck Regulator With Fault Warnings and Power OK

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Manufacturer	ALLEGRO [Allegro MicroSystems]

Direct Link	http://www.allegromicro.com

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23 / 24 page

Fixed Frequency High Current Synchronous Buck Regulator

With Fault Warnings and Power OK

A8672

22

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

Package EG, 28-Contact QFN

28

2

1

2

1

A

A Terminal #1 mark area

B Exposed thermal pad (reference only, terminal #1

identifier appearance at supplier discretion)

Concept Drawing For Reference Only; not for tooling use

(reference JEDEC MO-220WGHD-3 except for contact length)

Dimensions in millimeters

Exact case and lead configuration at supplier discretion within limits shown

C Reference land pattern layout (reference

IPC7351 QFN50P400X500X080-29M);

All pads a minimum of 0.20 mm from all adjacent pads; adjust as

necessary to meet application process requirements and PCB layout

tolerances; when mounting on a multilayer PCB, thermal vias at the

exposed thermal pad land can improve thermal dissipation (reference

EIA/JEDEC Standard JESD51-5)

B

28

2

1

PCB Layout Reference View

0.50 BSC

4.00 BSC

5.00 BSC

0.75 ±0.05

0.30

0.40±0.10

0.30

0.20 MIN

1

0.50

0.90

5.00

4.00

C

3.65

2.65

3.65

C

0.08

28X

SEATING

PLANE

C

D

D Coplanarity includes exposed thermal pad and terminals

±0.05

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