Datasheet

1. General description
Three-terminal shunt regulator family with an output voltage range between V
ref
and 36 V,
to be set by two external resistors.
• The TL431xDBZR types feature an enhanced stability area with a very low
load capacity requirement.
• The TL431xFDT types offer an enhanced stability area and a higher
ElectroMagnetic Interference (EMI) ruggedness, for example, for Switch Mode Power
Supply (SMPS) applications.
• The TL431xSDT types are designed for standard requirements and linear
applications.
TL431 family
Adjustable precision shunt regulator
Rev. 4 — 30 June 2011 Product data sheet
SOT23
Table 1. Product overview
Reference voltage
tolerance (V
ref
)
Temperature range (T
amb
) Pinning
configuration
(see Table 5)
0 to 70 C 40 to 85 C 40 to 125 C
2 % TL431CDBZR TL431IDBZR TL431QDBZR normal pinning
TL431FDT normal pinning
TL431MFDT mirrored pinning
TL431SDT normal pinning
TL431MSDT mirrored pinning
1 % TL431ACDBZR TL431AIDBZR TL431AQDBZR normal pinning
TL431AFDT normal pinning
TL431AMFDT mirrored pinning
TL431ASDT normal pinning
TL431AMSDT mirrored pinning
0.5 % TL431BCDBZR TL431BIDBZR TL431BQDBZR normal pinning
TL431BFDT normal pinning
TL431BMFDT mirrored pinning
TL431BSDT normal pinning
TL431BMSDT mirrored pinning