Hot-selling and scarce TLV431AIDBVR Low-Voltage Adjustable Precision Shunt Regulator SOT23-5 spot stock

Product Descriptions

The   TLV431   device   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  V REF   (1 .24V)  and  6V  with  two external  resistors  (see the  Parameter Measurement Information section). These devices operate from  a lower voltage (1 .24V) than the widely used TL431 and TL1431 shunt-regulator references.

When used with an optocoupler, the TLV431 device is an ideal voltage reference in isolated feedback circuits for 3V to 3.3V switching-mode power supplies. These devices  have a typical output  impedance of 0.25Ω. Active output circuitry  provides a very sharp turnon characteristic,  making  them  excellent  replacements for  low-voltage  Zener  diodes  in  many  applications, including  on-board  regulation  and  adjustable  power supplies.

Product Features

•    Low-voltage operation, V REF = 1.24V

•   Adjustable output voltage, VO = VREF to 6V

•    Reference voltage tolerances at 25°C

–   0.5% for TLV431B

–   1% for TLV431A

–   1.5% for TLV431

•   Typical temperature drift

–   4mV (0°C to 70°C)

–   6mV (–40°C to 85°C)

–   11mV (–40°C to 125°C)

•    Low operational cathode current, 80µA typical

•   0.25Ω typical output impedance

•    Ultra-small SC-70 package offers 40% smaller footprint than SOT-23-3

•   See TLVH431 and TLVH432 for:

–   Wider VKA (1 .24V to 18 V) and IK (80mA)

–   Additional SOT-89 package

–   Multiple pinouts for SOT-23-3 and SOT-89 packages

•    On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. on all other products, production processing does not necessarily include testing of all parameters.

Product Applications

•   Adjustable voltage and current referencing

•   Secondary side regulation in flyback SMPSs

•   Zener replacement

•   Voltage monitoring

•    Comparator with integrated reference

Product Specification

Product Photos

For more product information, please download the PDF