1

®

FN6683.2

ISL97519A

600kHz/1.2MHz PWM Step-Up Regulator

The ISL97519A 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. Two

selectable frequencies, 600kHz and 1.2MHz, allow trade offs

between smaller components 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 ISL97519A 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

ISL97519A

(8 LD MSOP)

TOP VIEW

Features

• >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 (RoHS compliant)

• Halogen Free

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. #

ISL97519AIUZ

7519A

8 Ld MSOP

MDP0043

ISL97519AIUZ-T*

7519A

8 Ld MSOP

MDP0043

ISL97519AIUZ-TK*

7519A

8 Ld MSOP

MDP0043

*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

June 30, 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.