The NCP431/NCP432 integrated circuits are three−terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V using two external resistors.

Features

• Programmable Output Voltage to 36 V

• Low Minimum Operating Current: 40 A, Typ @ 25°C

• Voltage Reference Tolerance: ±0.5, Typ @ 25°C (NCP431B/NCP432B)

• Low Dynamic Output Impedance, 0.22  Typical

• Sink Current Capability of 40 A to 100 mA

• Equivalent Full−Range Temperature Coefficient of 50 ppm/°C Typical

• Temperature Compensated for Operation over Full Rated Operating Temperature Range

• SC Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC−Q100 Qualified and PPAP Capable

• These are Pb−Free Devices

Typical Applications

• Voltage Adapters

• Switching Power Supply

• Precision Voltage Reference

• Charger

• Instrumentation