DATA SHEET www.onsemi.com
Programmable Shunt Regulator
KA431S, KA431SA, KA431SL
Description The KA431S / KA431SA / KA43...
DATA SHEET www.onsemi.com
Programmable Shunt Regulator
KA431S, KA431SA, KA431SL
Description The KA431S / KA431SA / KA431SL are three−terminal adjustable
regulator series with a guaranteed thermal stability over the operating temperature range. The output
voltage can be set to any value between VREF (approximately 2.5 V) and 36 V with two external resistors. These devices have a typical dynamic output impedance of 0.2 W. Active output circuitry provides a sharp turn−on characteristic, making these devices excellent replacement for zener diodes in many applications.
Features
Programmable Output
Voltage to 36 V Low Dynamic Output Impedance 0.2 W (Typical) Sink Current Capability: 1.0 to 100 mA Equivalent Full−Range Temperature Coefficient of 50 ppm/°C
(Typical)
Temperature Compensated for Operation Over Full Rated Operating
Temperature Range
Low Output Noise
Voltage Fast Turn−on Response These Devices are Pb−Free and Halogen Free
3
12
SOT23−FL3L CASE 318AB
MF 1. Cathode 2. Ref 3. Anode
MF2 1. Ref 2. Cathode 3. Anode
DEVICE MARKING INFORMATION
See general marking information in the device marking section on page 2 of this data sheet.
ORDERING INFORMATION
See detailed ordering and shipping information on page 6 of this data sheet.
REFERENCE
+ −
2.5 Vref
REFERENCE (R)
ANODE CATHODE (K)
ANODE(A)
Figure 1. Block Diagram
CATHODE
© Semiconductor Components Industries, LLC, 2002
1
May, 2022 − Rev. 8
Publication Order Number: KA431SL/D
KA431S, KA431SA, KA...