1

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FN6748.0

ISL97650B

4-Channel Integrated LCD Supply

The ISL97650B represents a high power, integrated LCD

supply IC targeted at large panel LCD displays. The

ISL97650B integrates a high power, 3.2A boost converter for

regulator with 2A switch for logic generation.

The ISL97650B has been designed for ease of layout and

low BOM cost. Supply sequencing is integrated for both

The TFT power sequence uses a separate enable to the

logic buck regulator for maximum flexibility.

Peak efficiencies are >90% for both the boost and buck while

operating from a 4.2V to 14V input supply. The current mode

buck offers superior line and load regulation. Available in the

36 Ld TQFN package, the ISL97650B is specified for ambient

operation over the -40°C to +105°C temperature range.

Pinout

ISL97650B

(36 LD TQFN)

TOP VIEW

Features

• 4.2V to 14V input supply

• Automatic start-up sequencing

- Independent logic enable

• Thermally enhanced 6x6 Thin QFN package

• Pb-free plus anneal available (RoHS compliant)

Applications

• LCD monitors (15”+)

• LCD-TVs (up to 40”)

• Notebook displays (up to 16”)

• Industrial/medical LCD displays

THERMAL

PAD

27

26

25

24

23

22

21

1

2

3

4

5

6

7

LX1

LX2

CB

LXL

NC

VSUP

FBL

AGND1

PGND1

PGND2

VINL

NOUT

PGND3

FBN

8

9

20

19

VREF

FBP

CM2

CTL

Ordering Information

PART NUMBER

(Note)

PART

MARKING

PACKAGE

(Pb-Free)

PKG.

DWG. #

ISL97650BIRTZ-T*

ISL976 50BIRTZ 36 Ld 6x6 TQFN

L36.6x6

ISL97650BIRTZ-TK*

ISL976 50BIRTZ 36 Ld 6x6 TQFN

L36.6x6

*Please refer to TB347 for details on reel specifications.

NOTE: 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.

Data Sheet

July 31, 2008

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2008. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.