AP1538

18V 3A 300KHz BUCK CONVERTER

AP1538 Rev. 5

2 of 13

OCTOBER 2009

DS31451

www.diodes.com

Ordering Information

AP 1538 XXX G - 13

Package

Packing

S : SOP-8L

Green

13 : Tape & Reel

G : Green

SDP : SOP-8L-DEP

Device

Package

Code

Packaging

(Note 2)

13” Tape and Reel

Quantity

Part Number Suffix

AP1538SG-13

S

SOP-8L

2500/Tape & Reel

-13

AP1538SDPG-13

SDP

SOP-8L-DEP

2500/Tape & Reel

-13

Notes:

1. EU Directive 2002/95/EC (RoHS). All applicable RoHS exemptions applied. Please visit our website at

http://www.diodes.com/products/lead_free.html

2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at

http://www.diodes.com/datasheets/ap02001.pdf.

Pin Assignments

(1) SOP-8L

(2) SOP-8L-DEP (Dual Exposed Pads)

1

2

3

4

8

7

6

5

FB

Output

OCSET

Output

EN

Vss

Vss

( Top View )

1

2

3

4

8

7

6

5

FB

Output

OCSET

Output

EN

Vss

Vss

1

2

( Top View )

(Note 3)

Notes:

3. Exposed pad 1 is connected to VSS and exposed pad 2 is connected to Output. The board layout for exposed pads needs to be considered to

avoid short circuit.