ISL6719 Datasheet, PDF (1/9 Pages) Intersil Corporation – 100V Linear Bias Supply

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Data Sheet
October 1, 2007
ISL6719
FN6555.1
100V Linear Bias Supply
The ISL6719 is a low cost linear regulator for generating a
low voltage bias supply from intermediate distributed
voltages commonly used in telecom and datacom
applications. It provides a single adjustable output rated at
100mA from either the input source or an auxiliary source
such as a transformer winding. The auxiliary source is
selected whenever it has sufficient voltage to sustain the
output.
The ISL6719 may be used as a start-up or a continuous low
power regulator. When operating as a start-up regulator, it is
capable of sourcing 100mA from a 100V source for short
durations. This period of time allows the power supply to
start-up and provide an alternate power source, such as the
output of a transformer winding, to the AUXIN input. This
allows the regulated output to operate from a lower source
voltage to minimize power loss.
Ordering Information
PART
NUMBER
(Note)
PART
TEMP. PACKAGE PKG.
MARKING RANGE (°C) (Pb-Free) DWG. #
ISL6719ARZ* 19AZ
-40 to +105 9 Ld DFN L9.3x3
*Add “-T” suffix for tape and reel. 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.
Features
• 100+ Volt Input Capability
• Adjustable Output from 1.5V to 20V
• Up to 100mA Output Current
• Overcurrent Protection
• Over-Temperature Protection
• ENABLE and ENABLE_N Inputs
• Package Compliant with IPC2221A, Creepage and
Clearance Spacing Requirements
• Pb-Free (RoHS Compliant)
Applications
• Telecom/Datacom DC/DC Converters
• Low Power Bias Supplies
Pinout
ISL6719
(9 LD DFN)
TOP VIEW
VPWR ₁
AUXIN 2
VSW 3
VSW_FB 4
9 ^GND
8 ENABLE_N
7 ENABLE
6 COMPB
5 COMPA
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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