1
100V Linear Bias Supply
ISL6719
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.
Features
• 100V+ 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
Applications
• Telecom/datacom DC/DC converters
• Low power bias supplies
Pin Configuration
ISL6719
(9 LD DFN)
TOP VIEW
2
3
1
4
8
7
6
9
5
VPWR
AUXIN
VSW
VSW_FB
GND
ENABLE_N
ENABLE
COMPB
COMPA
Ordering Information
PART NUMBER
(Note 1, 2, 3) PART MARKING
TEMP RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL6719ARZ 19AZ -40 to +105 9 Ld DFN L9.3x3
NOTES:
1. Add “-T*” suffix for tape and reel. Please refer to TB347
for details on reel specifications.
2. 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.
3. For Moisture Sensitivity Level (MSL), please see device information page for ISL6719
. For more information on MSL, please see tech brief TB363.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2007, 2014. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
July 15, 2014
FN6555.2
