High-Speed Step-Down Controller with

Accurate Current Limit for Notebook Computers

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

24 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2002 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,

go to www.maxim-ic.com/packages.)

D2

(ND-1) X e

e

D

C

PIN # 1

I.D.

(NE-1) X e

E/2

E

0.08 C

0.10 C

A

A1 A3

DETAIL A

0.15 C B

0.15 C A

DOCUMENT CONTROL NO.

21-0140

PACKAGE OUTLINE

16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm

PROPRIETARY INFORMATION

APPROVAL

TITLE:

C

REV.

2

1

E2/2

E2

0.10 M C A B

PIN # 1 I.D.

b

0.35x45

L

D/2

D2/2

L

C

L

C

e

e

L

C

CL

k

k

L

L

2

2

21-0140

REV.

DOCUMENT CONTROL NO.

APPROVAL

PROPRIETARY INFORMATION

TITLE:

COMMON DIMENSIONS

EXPOSED PAD VARIATIONS

1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.

2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.

3. N IS THE TOTAL NUMBER OF TERMINALS.

4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JESD 95-1

SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE

ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.

5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm

FROM TERMINAL TIP.

6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.

7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.

8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.

9. DRAWING CONFORMS TO JEDEC MO220.

NOTES:

10. WARPAGE SHALL NOT EXCEED 0.10 mm.

C

PACKAGE OUTLINE

16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm