CL2431

Features:

` Temperature-Compensated: 30ppm/
` Trimmed 0.5% Bandgap Reference
` Internal Amplifier with 100mA Capability
` Temperature Range: Extended to 0 to 105
` Low Frequency Dynamic Output Impedance: < 150m
` Low Output Noise
` SOT-23 Replacement for TL431


Pinout




Specifications

SYMBOL	PARAMETER	RATING	UNITS
VKA	Cathode-Anode Reverse Breakdown	18	V
IAK	Anode-Cathode Forward Current	1	A
IKA	Operating Cathode Current	100	mA
IREF	Reference Input Current	1	mA
PD	Continuous Power Dissipation at 25 SOT-23	200	mW
TJ	Junction Temperature	150
TSTG	Storage Temperature	65 to 150
TL	Lead Temperature, Soldering 10 Seconds	300

Description

The CL2431 is a three terminal adjustable voltage reference designed to act as an open-loop error amplifier with a 2.5V temperature compensated reference. Operating as a low temperature coefficient zener which is programmable from VREF to 18V with two external resistors while providing a wide operating current range of 1.0mA to 100mA with a typical dynamic impedance of 0.15W. As a shunt regulator CL2431 can be used as either a positive or negative voltage reference. Active output circuitry provides a very sharp turn-on characteristic, making the CL2431 an excellent replacement for low-voltage zener diodes in many applications, including on-board regulation and adjustable power supplies.