Datasheet Diodes ZR431LF02TA

ZR431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Description Pin Assignments ADVANCE INFORMATION The ZR431 is a three terminal adjustable shunt regulator
offering excellent temperature stability and output current
handling capability up to 100mA. The output voltage may be
set to any chosen voltage between 2.5 and 20 volts by
selection of two external divider resistors. (Top View) (Top View) VZ 1 VREF 3
1 GND The devices can be used as a replacement for zener diodes
in many applications requiring an improvement in zener
performance. VZ SOT223
Pin 4 floating or
connected to pin 2 Features
Surface mount SOT223 and SOT23 packages
2%, 1 % and 0.5% tolerance
Max. temperature coefficient 55 ppm/°C
Temperature compensated for operation
over the full temperature range
Programmable output voltage
50μA to 100mA current sink capability
Low output noise • All package options available in “Green” Molding
Compound (No Br, Sb) and Lead Free Finish/ RoHS
Compliant (Note 1) Notes: 4 GND VREF 3 2
SOT23 • …

ZR431L
ADJUSTABLE PRECISION SHUNT REGULATOR Description Pin Assignments The ZR431L is a three terminal adjustable shunt regulator offering
excellent temperature stability and output current handling capability
up to 25mA. The output voltage may be set to any chosen voltage
between 1.24 and 10 volts by selection of two external divider
resistors. (Top View) VREF 1 The devices can be used as a replacement for zener diodes in many
applications requiring an improvement in zener performance. 3 GND
VZ The ZR431L is particularly used in the feedback control loop of
switch mode power supplies. In this application the device 1.24 volt
reference enables the generation of low voltage supplies, typically
3.3 volts or 3 volts. 2 SOT23 Features 2.5% and 1% Tolerance Max. Temperature Coefficient 50ppm/°C Applications Temperature Compensated for Operation over The Full
Temperature Range Shunt Regulator Series Regulator Voltage Monitor Over Voltage/ Under Voltage Protection Switch Mode Power Supplies Programmable Output Voltage 100μA to 100mA Current Sink Capability Surface Mount SOT23 Package Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen-and Antimony-free, "Green"
and Lead-free.
3. Halogen-and Antimony-free "Green” products are defined as those which contain …