MP28255 – 4A, 21V, SYNCHRONOUS STEP-DOWN CONVERTER WITH INTERNAL MOSFETS

NOTICE: The information in this document is subject to change without notice. Users should warrant and guarantee that third

party Intellectual Property rights are not infringed upon when integrating MPS products into any application. MPS will not

assume any legal responsibility for any said applications.

MP28255 Rev. 1.01

www.MonolithicPower.com

14

3/11/2011

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

PACKAGE INFORMATION

3mm x 4mm QFN14

SIDE VIEW

TOP VIEW

1

14

8

7

BOTTOM VIEW

2.90

3.10

1.60

1.80

3.90

4.10

3.20

3.40

0.50

BSC

0.18

0.30

0.80

1.00

0.00

0.05

0.20 REF

PIN 1 ID

MARKING

1.70

0.50

0.25

RECOMMENDED LAND PATTERN

2.90

NOTE:

1) ALL DIMENSIONS ARE IN MILLIMETERS.

2) EXPOSED PADDLE SIZE DOES NOT INCLUDE MOLD FLASH.

3) LEAD COPLANARITY SHALL BE 0.10 MILLIMETER MAX.

4) JEDEC REFERENCE IS MO-229, VARIATION VGED-3.

5) DRAWING IS NOT TO SCALE.

PIN 1 ID

SEE DETAIL A

3.30

0.70

PIN 1 ID OPTION B

R0.20 TYP.

PIN 1 ID OPTION A

0.30x45º TYP.

DETAIL A

0.30

0.50

PIN 1 ID

INDEX AREA