FN7415 Rev 2.00

Page 1 of 19

February 22, 2006

FN7415

Rev 2.00

February 22, 2006

EL7640, EL7641, EL7642

TFT-LCD DC/DC with Integrated Amplifiers

DATASHEET

The EL7640, EL7641, and EL7642 integrate a high

either one (EL7640), three (EL7641), or five amplifiers

The boost converter in the EL7640, EL7641, and EL7642 is

a current mode PWM type integrating an 18V N-channel

MOSFET. Operating at 1.2MHz, this boost can operate in

either P-mode for superior transient response, or in PI-mode

for tighter output regulation.

Using external low-cost transistors, the LDO controllers

start-up sequence control and fault protection.

applications, with 150mA peak output current drive, 12MHz

bandwidth, and 12V/

s slew rate. All inputs and outputs are

rail-to-rail.

Available in the 32 Ld thin QFN (5mm x 5mm) Pb-free

packages, the EL7640, EL7641, and EL7642 are specified

for operation over the -40°C to +85°C temperature range.

Features

• Current mode boost regulator

- Fast transient response

- 1% accurate output voltage

- 18V/3A integrated FET

- >90% efficiency

- 2% output regulation

• High speed amplifiers

- 150mA short-circuit output current

-12V/

s slew rate

- 12MHz -3dB bandwidth

- Rail-to-rail inputs and outputs

• Built-in power sequencing

• Internal soft-start

• Multiple overload protection

• Thermal shutdown

• 32 Ld 5x5 thin QFN package

• Pb-Free plus anneal available (RoHS compliant)

Applications

• TFT-LCD panels

• LCD monitors

• Notebooks

•LCD-TVs

Ordering Information

PART NUMBER

(Note)

PART

MARKING

TAPE &

REEL

PACKAGE

(Pb-Free)

PKG.

DWG. #

EL7640ILTZ

7640ILTZ

-

32 Ld 5x5

Thin QFN

MDP0051

EL7640ILTZ-T7

7640ILTZ

7”

32 Ld 5x5

Thin QFN

MDP0051

EL7640ILTZ-T13

7640ILTZ

13”

32 Ld 5x5

Thin QFN

MDP0051

EL7641ILTZ

7641ILTZ

-

32 Ld 5x5

Thin QFN

MDP0051

EL7641ILTZ-T7

7641ILTZ

7”

32 Ld 5x5

Thin QFN

MDP0051

EL7641ILTZ-T13

7641ILTZ

13”

32 Ld 5x5

Thin QFN

MDP0051

EL7642ILTZ

7642ILTZ

-

32 Ld 5x5

Thin QFN

MDP0051

EL7642ILTZ-T7

7642ILTZ

7”

32 Ld 5x5

Thin QFN

MDP0051

EL7642ILTZ-T13

7642ILTZ

13”

32 Ld 5x5

Thin QFN

MDP0051

NOTE: Intersil Pb-free plus anneal products employ special Pb-free material

sets; molding compounds/die attach materials and 100% matte tin plate

termination finish, which are 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.

NOT RECOMMEN

DED FOR NEW DE

SIGNS

RECOMMENDED

REPLACEMENT P

ART

ISL97645A