Product Summary

The LM431CCZ is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. The LM431CCZ is now available in a chip sized package (4-Bump micro SMD) using National’s micro SMD package technology. The output voltage may be set at any level greater than 2.5V (VREF) up to 36V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turn-on characteristics, the LM431CCZ is an excellent replacement for many zener diode applications.

Parametrics

LM431CCZ absolute maximum ratings: (1)Storage Temperature Range: -65℃ to +150℃; (2)Operating Temperature Range Commercial: 0℃ to +70℃; (3)Soldering Information Infrared or Convection (20 sec.): 235℃; (4)Wave Soldering (10 sec.): 260℃ (lead temp.); (5)Cathode Voltage: 37V; (6)Continuous Cathode Current: 10 mA to +150 mA; (7)Reference Voltage: -0.5V; (8)Reference Input Current: 10 mA; (9)Internal Power Dissipation: 0.78W.

Features

LM431CCZ features: (1)Average temperature coefficient 50 ppm/℃; (2)Temperature compensated for operation over the full temperature range; (3)Programmable output voltage; (4)Fast turn-on response; (5)Low output noise; (6)in micro SMD package; (7)See AN-1112 for micro SMD considerations.

Diagrams

LM431CCZ block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM431CCZ
LM431CCZ

Fairchild Semiconductor

Voltage & Current References Shunt Regulator 2.5V Programmable

Data Sheet

0-1: $0.31
1-25: $0.23
25-100: $0.13
100-250: $0.09
LM431CCZ/NOPB
LM431CCZ/NOPB

National Semiconductor (TI)

Voltage & Current References

Data Sheet

Negotiable 
LM431CCZX
LM431CCZX

Fairchild Semiconductor

Voltage & Current References Shunt Regulator 2.5V Programmable

Data Sheet

Negotiable 
LM431CCZXA
LM431CCZXA

Fairchild Semiconductor

Voltage & Current References Adjustable/2.5V 0.5% Tolerance Shunt

Data Sheet

Negotiable