ISL8033, ISL8033A

5

FN6854.2

March 24, 2011

18, 19

LX1

Switching node connection for Channel 1. Connect to one terminal of inductor for VOUT1.

2, 3,

16, 17

VIN2,

VIN1

Input supply voltage. Connect a 22µF ceramic capacitor to power-ground per channel.

25

PD

The exposed pad must be connected to the PGND pin for proper electrical performance. Add as much vias as

possible under this pad for optimal thermal performance.

PIN NUMBER

SYMBOL

DESCRIPTION

Ordering Information

PART NUMBER

(Notes 1, 2, 3)

PART

MARKING

TEMP. RANGE

(°C)

PACKAGE

(Pb-free)

PKG.

DWG. #

ISL8033IRZ*

80 33IRZ

-40 to +85

24 Ld 4x4 QFN

L24.4x4D

ISL8033AIRZ*

80 33AIRZ

-40 to +85

24 Ld 4x4 QFN

L24.4x4D

NOTES:

1. Add “-T*” suffix for tape and reel.Please refer to TB347 for details on reel specifications.

2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte

tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-

free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

Brief TB363.