AZ431-A

Product Brief ADJUSTABLE PRECISION SHUNT REGULATORS Description The AZ431-A series ICs are three-terminal adjustable shunt regulators with guaranteed thermal stability over a full operation range. These ICs feature sharp turn-on characteristics, low temperature coefficient and low output impedance, which make them ideal substitutes for Zener diodes in applications such as switching power supply, charger and other adjustable regulators. The AZ431-A series ICs are of 40V voltage type. Its output voltage can be set to any value between VREF(2.5V) and 36V. The AZ431-A precision reference is offered in two bandgap tolerance: 0.4% and 0.8%. AZ431-A Parametric Table AZ431A-A IKA (Max) (mA) IKA (Min) (mA) VOUT / VREF Initial Tol. (%) VOUT (Max) (V) VOUT (Min) (V) ZKA (Typ) (Ω) Temp Coeff. (Typ) (PPM/oC) Operating Temperature (Min) (oC) Operating Temperature (Max) (oC) 100 0.4 0.4 36 2.5 0.15 20 -40 +125 AZ431B-A 100 0.4 0.8 36 2.5 0.15 20 -40 +125 Features · · · · · · · · · Programmable Precise Output Voltage from 2.5V to 36V Very Accurate Reference Voltage: 0.15% Typical High Stability under Capacitive Load Low Temperature Deviation: 4.5mV Typical Low Equivalent Full-range Temperature Coefficient with 20PPM/oC Typical Low Dynamic Output Resistance: 0.2Ω Typical Sink Current Capacity from 1mA to 100 mA Low Output Noise Wide Operating Range of -40 to 125oC Benefits · · · · · Easier to Stabilize Ultra Low Temperature Coefficient Higher VREF Accuracy Wider Operating Temperature Rang...