AP1533

PWM CONTROL 1.8A STEP-DOWN CONVERTER

AP1533 Rev. 4

2 of 9

JULY 2009

DS31192

www.diodes.com

Ordering Information

AP 1 5 3 3 S G - 13

Package

Packing

S : SOP-8L

Green

13 : Tape & Reel

G : Green

Device

Package

Code

Packaging

(Note 2)

13” Tape and Reel

Quantity

Part Number Suffix

AP1533SG-13

S

SOP-8L

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

Pin Assignments

1

2

3

4

8

7

6

5

FB

Output

OCSET

SOP-8L

AP1533

Output

EN

( Top View )

Pin Descriptions

Pin Name

Pin No.

Description

FB

1

Feedback pin

EN

2

Power-off pin

H: Normal operation

(Step-down operation)

L: Step-down operation stopped

(All circuits deactivated)

OCSET

3

Add an external resistor to set max output current

4

IC power supply pin

Output

5, 6

Switch Pin. Connect external inductor/diode here. Minimize trace area at this pin

to reduce EMI

7, 8

GND Pin