TLV431BQPK

低电压可调精密并联稳压器 LOW-VOLTAGE ADJUSTABLE PRECISION SHUNT REGULATOR

description/ordering information

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