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MFG:SEMTECH Package Cooled:1999
Part Number: SC431
MFG: SEMTECH
Package Cooled: 1999
Description: The SC431 is a three terminal adjustable shunt regulator with thermal stability guaranteed over temper...
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SC431
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DataSheet
General Description
SC431 General Description
The SC431 is a three terminal adjustable shunt regulator with thermal stability guaranteed over temperature. The output voltage can be adjusted to any value from 2.5V (VREF) to 36V with two external resistors. The SC431 has a typical dynamic output impedance of 0.25. Active output circuitry provides a very sharp turn on characteristic, making the SC431 an excellent replacement for zener diodes.
The SC431 shunt regulator is available in three voltage tolerances (0.5%, 1.0% and 2.0%) and three package options (SOT-23-3, SO-8 and TO-92). The three voltage tolerances allow the designer the opportunity to select the proper cost/tolerance for their application.
SC431 Maximum Ratings
| Parameter | Symbol | Maximum | Units |
| Cathode Voltage | VZ | 37 | V |
| Continous Cathode Current | IZ | 150 | mA |
| Reference Input Current | IREF | 10 | mA |
| Operating Junction Temperature Range | TJ | -40 to +150 | °C |
| Storage Temperature Range | TSTG | -65 to +150 | °C |
| Thermal Resistance TO-92 SO-8 SOT-23 |
JA |
160 175 410 |
°C/W |
| Power Dissipation at TA = 25°C TO-92 SO-8 SOT-23 |
PD |
0.78 0.71 0.30 |
W |
| Lead Temperature (Soldering) 10 seconds | TLEAD | 260 | °C |
SC431 Features
• Wide operating current range 100A to 150mA
• Low dynamic output impedance 0.25 typ.
• Trimmed bandgap design + 0.5%
• Alternate for TL431, LM431 & AS431
SC431 Typical Application
• Linear Regulators
• Adjustable Supplies
• Switching Power Supplies
• Battery Operated Computers
• Instrumentation
• Computer Disk Drives
SC431 Connection Diagram
SC431
PDF/DataSheet Download
- Datasheet: SC431
- File Size: 113852 KB
- Manufacturer: SEMTECH [Semtech Corporation]
- Click here to Download
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