AZ431 Datasheet | BCD Semiconductor

Description The AZ431 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 series ICs contain two voltage types, AZ431-A for 40V and AZ431-B for 20V. The output voltage of both types can be set to any value between VREF(2.5V) and the corresponding maximum cathode voltage. The AZ431 precision reference is offered in two bandgap tolerance: 0.4% and 0.8%. These ICs are available in 5 Packages: TO-92, SOT-233, SOT-23-5, SOT-89 and SOIC-8. Features - - - - - - - - - Programmable Precise Output Voltage from 2.5V to 36V or 18V Very Accurate Reference Voltage: 0.15% Typical High Stability under Capacitive Load Low Temperature Deviation: 4.5m V Typical Low Equivalent Full-range Temperature Coefficient with 20PPM/o C Typical Low Dynamic Output Resistance: 0.2Ω Typical Sink Current Capacity from 1m A to 100 m A Low Output Noise Wide Operating Range of -40 to 125o C Applications - - - - - Charger Voltage Adapter Switching Power Supply Graphic Card Precision Voltage Reference SOIC-8 SOT-89 TO-92 SOT-23-3 SOT-23-5 Figure 1. Package Types of AZ431 Apr. 2005 Rev. 1. 7 BCD Semiconductor Manufacturing Limited Data Sheet ADJUSTABLE PRECISION SHUNT REGULATORS Pin Configuration M Package (SOIC-8) N Package (SOT-23-3) ANODE R Package (SOT-89) .. CATHODE ANODE ANODE NC 1 2 3 4 8 7 6 5 REF ANODE 1 ANODE NC REF CATHODE ANODE CATHODE Z Package (TO-92) K Package...