1.26-V Adjustable High-Precision Shunt Regulators

These devices are adjustable high-precision shunt regulators whose output voltage (VKA) can be set arbitrarily using two external resistors.
These devices have a precise internal reference voltage of 1.26 V, enabling them to operate at low voltage.
These devices are ideal for use as error amplifiers in 3-V switching-regulator systems. In addition, they can be used as zener diodes to perform temperature compensation.

FEATUREs
 • Precision reference voltage: VREF = 1.26 V ± 1.4% (Ta = 25°C)
 • Small temperature coefficient: |αVREF| = 30 ppm/°C (typ.)
 • Adjustable output voltage: VREF ≤ VOUT ≤ 19 V
 • Minimum cathode current for regulation: Ikmin = 0.5 mA (max.)
 • Operating temperature: Ta = −40~85°C
 • Packages: UFV (TA76432FT), SMV (TA76432FC), PW-MINI (TA76432F/FR) and TO-92MOD (TA76432S)
 • The TA76432FT is housed in an ultra-thin UFV package. (thickness: 0.7 mm typ.)