100V 50mA Very High Voltage Li
SCX2105
near Regulator
General Description
The  SCX2105 device  is  a  very  high
voltage-tolerant linear regulator that offers the
benefits of a thermally-enhanced package, and is
able to withstand continuous DC or transient input
voltages of up to 100 V. The SCX2105 device is stable
with output capacitance greater than 2.2μF and
any input capacitance greater than 0.47μF.
Therefore, implementations of this device require
minimal board space because of its miniaturized
packaging (PSOP8) and a potentially small output
capacitor. In addition, the SCX2105 device offers
an enable pin (EN) compatible with standard
CMOS logic to enable a low-current shutdown mode
.
The SCX2105 device has an internal thermal
shutdown and current limiting to protect the
system during fault conditions. The SOP8-EP and
packages  have
an  operating
temperature range of TJ = –40°C to 125°C. In
addition, the SCX2105 device is ideal for
generating a low-voltage supply from
intermediate voltage rails in telecom and industrial
applications; not only can it supply a well-regulated
voltage rail, but it can also withstand and maintain
regulation during very high and fast voltage
transients. These features translate to simpler
and more cost-effective electrical surge-
protection circuitry for a wide range of
applications, including PoE, bias supply, and LED
lighting.
Ordering Information
Part Number Package Body Size
SOP8-EP
SCX2105
Features
? VIN Range 7 to 100V
? Output Voltage Tolerances of ±1.5%
? Output Current of 50 mA
? Low Quiescent Current 23μA
? Quiescent Current at Shutdown 8μA
? Dropout Voltage 2.8V at I OUT = 50 mA
? Internal Thermal Overload Protection
? Internal Short-Circuit Current Limit
? Adjustable Output Voltage from 1.2 to 90V
Applications
? Microprocessors, Microcontrollers Powered by
Industrial Busses With High Voltage Transients
? Industrial Automation
? Telecom Infrastructure
? Automotive
? Power over Ethernet(PoE)
? LED Lighting