ISL97519 Datasheet, PDF (1/9 Pages) Intersil Corporation – 1% Output Accuracy 600kHz/1.2MHz PWM Step-Up Regulator

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Data Sheet
September 10, 2009
ISL97519
FN6454.3
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, 200mΩ 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 +105°C temperature range.
Pinout
ISL97519
(8 LD MSOP)
TOP VIEW
COMP 1
FB 2
EN 3
GND 4
8 SS
7 FSEL
6 VDD
5 LX
Features
• 1% Output Accuracy
• >90% Efficiency
• 2.0A, 200mΩ 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
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL97519IUZ
7519Z
8 Ld MSOP M8.118A
ISL97519IUZ-T* 7519Z
8 Ld MSOP M8.118A
ISL97519IUZ-TK* 7519Z
8 Ld MSOP M8.118A
*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.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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