SC431L: Low Voltage Adjustable Shunt Regulator

The SC431L is a three terminal adjustable shunt regulator with thermal stability guaranteed over temperature. The output voltage can be adjusted to any value from 1.24V (VREF) to 20V with two external resistors. The SC431L has a typical dynamic output impedance of 0.05Ω.


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Features

  • Low-voltage operation (down to 1.24 V)
  • Wide operating current range 100 µA to 100 mA
  • Low dynamic output impedance 0.05 Ohm typ.
  • Trimmed bandgap design ± 0.25%
  • Upgrade for TL1431A
  • Available in SOT-23-3 and SOT-23-5 packages.  Also available in Lead-free package, fully WEEE and RoHS compliant

Diagrams

Typical Application Circuit

SC431L - Typical Application Circuit

Click diagram to enlarge

Applications

  • Linear regulators
  • Adjustable supplies
  • Switching power supplies
  • Battery-operated computers
  • Instrumentation
  • Computer disk drives

Packaging

SOT-23-3, SOT-23-5

Order Codes
  • SC431LC5SK-.5TR: Package Minimum Tape & Reel Only
  • SC431LC5SK-1 TR: Package Minimum Tape & Reel Only
  • SC431LC5SK-1TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LC5SK-2 TR: Package Minimum Tape & Reel Only
  • SC431LC5SK.25TR: Package Minimum Tape & Reel Only
  • SC431LC5SK.5TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LC5SK25TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LCSK-.25TR: Package Minimum Tape & Reel Only
  • SC431LCSK-.5 TR: Package Minimum Tape & Reel Only
  • SC431LCSK-.5TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LCSK-1 TR: Package Minimum Tape & Reel Only
  • SC431LCSK-1TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LCSK-2 TR: Package Minimum Tape & Reel Only
  • SC431LCSK-25TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LCSK-2TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LI5SK-.5TR: Package Minimum Tape & Reel Only
  • SC431LI5SK-1 TR: Package Minimum Tape & Reel Only
  • SC431LI5SK-1TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LI5SK-2 TR: Package Minimum Tape & Reel Only
  • SC431LI5SK.25TR: Package Minimum Tape & Reel Only
  • SC431LI5SK.5TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LISK-.25TR: Package Minimum Tape & Reel Only
  • SC431LISK-.5 TR: Package Minimum Tape & Reel Only
  • SC431LISK-.5TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LISK-1TR: Package Minimum Tape & Reel Only
  • SC431LISK-1TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LISK-2TR: Package Minimum Tape & Reel Only
  • SC431LISK-2TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC431LISK.25TRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
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Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets