Product Summary

The LM431SACMFX is a three terminal output adjustable regulator with thermal stability over operating temperature range. The output voltage can be set any value between VREF (approximately 2.5 volts) and 36 volts with two external resistors. The LM431SACMFX is has a typical dynamic output impedance of 0.2 Active output circuit provides a sharp turn-on characteristic, making the device excellent replacement for Zener Diodes in many applications.

Parametrics

LM431SACMFX absolute maximum ratings: (1)Cathode Voltage VKA 37 V; (2)Cathode current Range (Continuous) IKA -100 ~ +150 mA; (3)Reference Input Current Range IREF 0.05 ~ +10 mA; (4)Power Dissipation, PD: 560mW; (5)Junction Temperature TJ: 150℃; (6)Operating Temperature Range TOPR: -25 ~ +85℃; (7)Storage Temperature Range TSTG: -65 ~ +150℃.

Features

LM431SACMFX features: (1)Programmable Output Voltage to 36 Volts; (2)Low Dynamic Output Impedance 0.20 Typical; (3)Sink Current Capability of 1.0 to 100mA; (4)Equivalent Full-Range Temperature Coefficient of 50ppm/℃ Typical; (5)Temperature Compensated for Operation Over Full Rated Operating Temperature Range; (6)Low Output Noise Voltage; (7)Fast Turn-on Response.

Diagrams

LM431SACMFX block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM431SACMFX
LM431SACMFX

Fairchild Semiconductor

Voltage & Current References Shunt Regulator 2.5V Programmable

Data Sheet

0-1: $0.27
1-25: $0.20
25-100: $0.12
100-250: $0.08
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM4308
LM4308

Other


Data Sheet

Negotiable 
LM4308GR/NOPB
LM4308GR/NOPB

National Semiconductor (TI)

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Data Sheet

0-1: $2.79
1-25: $2.24
25-100: $2.04
100-250: $1.84
LM4308GRX/NOPB
LM4308GRX/NOPB

National Semiconductor (TI)

Display Interface IC

Data Sheet

0-2645: $1.32
2645-3500: $1.32
3500-5000: $1.27
LM4308SQ/NOPB
LM4308SQ/NOPB

National Semiconductor (TI)

Display Interface IC

Data Sheet

0-1: $2.79
1-25: $2.24
25-100: $2.04
100-250: $1.84
LM4308SQX/NOPB
LM4308SQX/NOPB

National Semiconductor (TI)

Display Interface IC

Data Sheet

0-3400: $1.32
3400-4500: $1.32
LM431
LM431

Other


Data Sheet

Negotiable