TS4431AILT

TS4431 系列 1.224 V 集电极开路 并联 电压基准 - SOT-23-5L

The TS4431 is a four-terminal device dedicated to low voltage Switch Mode Power Supplies SMPS.

It integrates a 1.224V voltage reference, an amplifier, and an open collector output transistor in a single package. The TS4431’s operating mode is similar to the well-known standard voltage reference, the TL431. It maintains the desired feedback voltage at the REF pin in a closed loop configuration by sinking a current proportional to the error voltage at the REF pin.

TS4431 features an open collector transistor with an ultra-low saturation voltage, allowing it to be used in series with the optocoupler in an SMPS architecture to regulate low voltage SMPS.

**Key Features**

.

Internal 1.224V ±0.5% precision

.

Low current consumption: 250 µA

.

Low output saturation voltage 75 mV max between SINK and GND

.

100ppm/˚C temperature coefficient

.

Industrial temperature range: -40 to +85˚C