1

®

FN6454.1

ISL97519

1% Output Accuracy 600kHz/1.2MHz PWM

Step-Up Regulator

The ISL97519 is a high frequency, high efficiency step-up

voltage regulator operated at constant frequency PWM

mode. With an internal 2.0A, 200m

Ω MOSFET, it can deliver

up to 1A output current at over 90% efficiency. The

selectable 600kHz and 1.2MHz allows smaller inductors and

faster transient response. An external compensation pin

gives the user greater flexibility in setting frequency

compensation allowing the use of low ESR ceramic output

capacitors.

When shut down, it draws <1µA of current and can operate

down to 2.3V input supply. These features along with

1.2MHz switching frequency makes it an ideal device for

portable equipment and TFT-LCD displays.

The ISL97519 is available in an 8 Ld MSOP package with a

maximum height of 1.1mm. The device is specified for

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

Pinout

ISL97519

(8 LD MSOP)

TOP VIEW

Features

• 1% Output Accuracy

• >90% Efficiency

• 2.0A, 200m

Ω Power MOSFET

• 2.3V to 5.5V Input

• Up to 25V Output

• 600kHz/1.2MHz Switching Frequency Selection

• Adjustable Soft-Start

• Internal Thermal Protection

• 1.1mm Max Height 8 Ld MSOP Package

• Pb-free Plus Anneal Available (RoHS compliant)

Applications

• TFT-LCD displays

• DSL modems

• PCMCIA cards

• Digital cameras

• GSM/CDMA phones

• Portable equipment

• Handheld devices

FB

FSEL

EN

VDD

GND

LX

COMP

SS

1

2

3

4

8

7

6

5

Ordering Information

PART

NUMBER

(Note)

PART

MARKING

PACKAGE

(Pb-free)

PKG.

DWG. #

ISL97519IUZ

7519Z

8 Ld MSOP

MDP0043

ISL97519IUZ-T*

7519Z

8 Ld MSOP

MDP0043

ISL97519IUZ-TK*

7519Z

8 Ld MSOP

MDP0043

*Please refer to TB347 for details on reel specifications.

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.

Data Sheet

November 2, 2007

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. 2007. All Rights Reserved

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