Overview
The L5431 is a high-precision variable shunt voltage regulator IC whose output voltage can be set to a value from approximately 2.5V to 36V by using external resistors.
Because of low output resistance and fast pulse response, the L5431 can be most suitably used as high-precision voltage reference, high-speed comparator, or zener diode.

FEATUREs
• Excellent temperature characteristic of Vref : 50ppm/°C (typ)
• Output voltage settable : Approximately 2.5V to 36V.
• Output flow-in current range : 1mA to 100mA
• Low dynamic resistance : 0.15Ω (typ)
• Fast response.
• Low output noise voltage.
• Small-sized TO-92.