The TLV431 is a low-voltage 3-terminal adjustable voltage reference with specified thermal stability over applicable industrial and commercial temperature ranges. Output voltage can be set to any value between VREF (1.24 V) and 6 V with two external resistors (see Figure 2). These devices operate from a lower voltage (1.24 V) than the widely used TL431 and TL1431 shunt-regulator references.
Low-Voltage Operation . . . VREF = 1.24 V
Adjustable Output Voltage, VO = VREF to 6 V
Reference Voltage Tolerances at 25C
− 0.5% for TLV431B
− 1% for TLV431A
− 1.5% for TLV431
Typical Temperature Drift
− 4 mV (0℃ to 70℃)
− 6 mV (–40℃ to 85℃)
− 11 mV (–40℃ to 125℃)
Low Operational Cathode Current . . . 80 µA Typ
0.25-Ω Typical Output Impedance
Ultra-Small SC-70 Package Offers 40% Smaller Footprint Than SOT-23-3
See TLVH431 and TLVH432 for
− Wider VKA (1.24 V to 18 V) and IK (80 mA)
− Additional SOT-89 Package
− Multiple Pinouts for SOT-23-3 and SOT-89 Packages
