LMV431AIZ

• Product Introduction

peculiarity

Low Operating Voltage/Wide Regulation Range (1.24V/30V) 0.5% initial error (LMV431B) Temperature-compensated industrial temperature range (LMV431AI of 39 ppm/°C) Low Operating Current (55μA) Low output impedance (0.25 ) Quick start response Low cost

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The LMV431, LMV431A and LMV431B 1.24V precision shunt regulators can be adjusted to 30V. The cathode voltage is controlled from the negative feedback adjustment pin, much like a non-inverting op amp configuration (reference symbol and function diagram). A resistor divider terminates the gain of a 1.24V bandgap reference controlled by the regulating pin. The cathode short-circuit adjustment pin (voltage follower) provides a cathode voltage of 1.24V.

With initial tolerances of 1.5%, 1% and 0.5% for the LMV431 LMV431A and LMV431B, respectively, the features are suitable for several applications that require their type of performance at low voltage Zener diodes. Applications include: 3V to 2.7V low-dropout regulators, error amplifiers in 3V off-line switching regulators, and even as a voltage detector. These parts are typically greater than 10nF and more than 50pF capacitive load stabilized.

The LMV431, LMV431A and LMV431B offer performance at a competitive price.

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Parallel voltage regulator Series voltage regulators Current source or Sink Voltage monitor Error amplifier 3V offline switching voltage regulation Low differential N-channel series voltage regulator