Bay Linear
Inspire the Linear Power
Adjustable Shunt Regulator
B3431
Description
The Bay Linear B3431 is a three term...
Bay Linear
Inspire the Linear Power
Adjustable Shunt Regulator
B3431
Description
The Bay Linear B3431 is a three terminal adjustable shunt regulator with thermal stability over Temperature range. Using two external resistors allows the output
voltage to be adjusted from 2.5V to 36V. With a sharp turn on characteristics the B3431 a superior replacement for zener diode applications.
Features
Wide Operating Range …1mA to100mA Tight Band Gap Tolerance ….….…0.5% Low Temp. Coefficient…...…...30 ppm/oC Wide temp range of –40 to +105oC Available in SOT-23 package
.
The B3431 shunt regulator has a tolerance of 0.5% which has proven to be sufficient to overcome all of the other errors in the system to virtually eliminate the need for trimming in the power supply manufacturers assembly line and contribute a significant cost savings.
Applications
Switching Power Supplies Adjustable Power Supplies Linear Regulators Battery Powered Equipment Monitors, TV, VCR Instrumentation
Package Information
SOT-23-3 (K3) LM3431 SOT-23-3 (K3) B3431
Ordering & Marking Information
ANODE
3 1 2
ANODE
3 1 2
Package
SOT-23 0.5% B3431AK3
Tolerance
1% B3431BK3 2% B3431CK3
CATHODE REF
Top View
REF CATHODE
Top View
CATHODE (K)
REFERENCE (R)
+
2.5V
ANODE (A)
Bay Linear, Inc 2478Armstrong St., Livermore CA USA 9550
Tel: (925) 606-5950, Fax: (925) 940-9556
www.baylinear.com
B3431
Absolute Max Ratings
Parameter Cathode
Voltage Continuous Cathode Current Reference Input Cur...