XRP431L Datasheet, PDF (1/8 Pages) Exar Corporation – Precision Adjustable Shunt Regulator

September 2010
XRP431L
Precision Adjustable Shunt Regulator
Rev. 1.2.0
GENERAL DESCRIPTION
The XRP431L is a three-terminal adjustable
shunt voltage regulator providing a highly
accurate bandgap reference.
The XRP431L acts as an open-loop error
amplifier with a 1.24V temperature
compensation reference. The XRP431L has
thermal stability, wide operating current of
100mA and broad temperature range of -40°C
to 125°C, making it suitable for a variety of
applications which require a low-cost, high
performance solution. The XRP431L tolerance
of 0.5% is proven to be sufficient to overcome
all other errors in the system to virtually
eliminate the need for trimming in the power
supply manufacturer's assembly line and
contribute a significant cost savings. The
output voltage may be adjusted to any value
between V_REF and 18 volts with two external
resistors.
The XRP431L is available in RoHS compliant,
“green”/halogen free 5-pin SOT23 package.
APPLICATIONS
• Charger
• Switching Power Supplies
• Graphic Cards
• Monitors, VCRs, TVs
FEATURES
• 0.5% Precise Output Voltage
− Adjustable 1.24V to 18V
• Wide Operating Current
− 0.1mA to 100mA
• Low Temperature Coefficient
at 20ppm/°C
• Extended Temperature Range
− -40°C to +125°C
• RoHS Compliant “Green”/Halogen Free
5-pin SOT23 Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: XRP431L Application Diagram
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
www.exar.com
Tel. [phone] – Fax. [phone]