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| 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) () 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: 0.2 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 Range Very Competitive Price Applications * * * * * Charger Voltage Adapter Switching Power Supply Graphic Card Precision Voltage Reference Additional Available Materials * * * * Samples Datasheet Reliability Report ESD Report Pin Configuration SOT-23-3 ANODE SOT-89 3 1 2 1 2 3 REF CATHODE REF ANODE CATHODE Nov. 2004 BCD Semiconductor Manufacturing Limited Product Brief ADJUSTABLE PRECISION SHUNT REGULATORS Pin Configuration SOIC-8 CATHODE ANODE ANODE NC 1 2 3 4 8 7 6 5 REF ANODE ANODE NC AZ431-A TO-92 3 2 1 CATHODE ANODE REF NC NC CATHODE SOT-23-5 1 2 3 4 REF 5 ANODE Ordering Information Example A Z 431 Circuit Type Bandgap Tolerance A: 0.4% B: 0.8% Package E1: Lead-Free Blank: Tin Lead TR: Tape/Reel or Ammo Blank: Tube or Bulk A: AZ431(40V) B: AZ431(20V) M: SOIC-8 N: SOT-23-3 R: SOT-89 Temperature Range -40 to 125oC Voltage Tolerance 0.4% 0.8% 0.4% TO-92 -40 to 125oC 0.4% 0.8% 0.8% Z: TO-92 K:SOT-23-5 Package Part Number Tin Lead AZ431AK-ATR AZ431BK-ATR AZ431AZ-A AZ431AZ-ATR AZ431BZ-A AZ431BZ-ATR Lead Free AZ431AK-ATRE1 AZ431BK-ATRE1 AZ431AZ-AE1 AZ431AZ-ATRE1 AZ431BZ-AE1 AZ431BZ-ATRE1 Marking ID Tin Lead K3A K3B AZ431AZ-A AZ431AZ-A AZ431BZ-A AZ431BZ-A Lead Free E3A E3B AZ431AZ-AE1 AZ431AZ-AE1 AZ431BZ-AE1 AZ431BZ-AE1 Packing Type Tape & Reel Tape & Reel Bulk Ammo Bulk Ammo SOT-23-5 Detailed information please refer to the relevant datasheet. Sales Office: USA 3170 De La Cruz Blvd, Suite # 105 Santa Clara, CA 95054-2411, U.S.A Tel : +1-408-988 6388 Fax : +1-408-988 6386 Taiwan 4F, 298-1 Rui Guang Road, Nei-Hu District, Taipei, Taiwan Tel : 886-2-2656-2808 Fax : 886-2-2656-2806 Shanghai 8F, B Zone, 900 Yi Shan Road, Shanghai 200233, China Tel : 86-21-6495 9539 Fax : 86-21-6485 9673 Shenzhen Room 27B, Tower C, No. 2070, Shennanzhong Road, Shenzhen 518031, China Tel : 86-755-8368 3987 Fax : 86-755-8368 3166 Nov. 2004 BCD Semiconductor Manufacturing Limited |
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