Product Summary

The LM431CCM is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. The LM431CCM 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 LM431CCM is an excellent replacement for many zener diode applications.

Parametrics

LM431CCM 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

LM431CCM 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

LM431CCM block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM431CCM
LM431CCM

Fairchild Semiconductor

Voltage & Current References Prog Shunt 0.5%

Data Sheet

Negotiable 
LM431CCM/NOPB
LM431CCM/NOPB

National Semiconductor (TI)

Voltage & Current References

Data Sheet

Negotiable 
LM431CCM3/NOPB
LM431CCM3/NOPB

National Semiconductor (TI)

Voltage & Current References

Data Sheet

0-1: $0.56
1-25: $0.43
25-100: $0.38
100-250: $0.33
LM431CCM3X/NOPB
LM431CCM3X/NOPB

National Semiconductor (TI)

Voltage & Current References

Data Sheet

0-1: $0.59
1-25: $0.47
25-100: $0.42
100-250: $0.37
LM431CCM3X
LM431CCM3X

National Semiconductor (TI)

Voltage & Current References

Data Sheet

0-3000: $0.18
3000-6000: $0.17
6000-12000: $0.17
LM431CCM3
LM431CCM3

National Semiconductor (TI)

Voltage & Current References

Data Sheet

0-1000: $0.20
1000-2000: $0.20
2000-3000: $0.18
3000-5000: $0.17
LM431CCMX
LM431CCMX

Fairchild Semiconductor

Voltage & Current References Shunt Regulator 2.5V Programmable

Data Sheet

0-1: $0.26
1-25: $0.22
25-100: $0.19
100-250: $0.16