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AS431IBNTR-G1 Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited |
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AS431IBNTR-G1 Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited |
1 / 17 page Data Sheet LOW CATHODE CURRENT ADJUSTABLE PRECISION SHUNT REGULATOR AS431I Aug. 2011 Rev. 1. 6 BCD Semiconductor Manufacturing Limited 1 General Description The AS431I is a three-terminal adjustable shunt reg- ulator with guaranteed thermal stability over a full operation range. It features sharp turn-on characteris- tics, low temperature coefficient and low output impedance, which make it ideal substitute for Zener diode in applications such as switching power supply, charger and other adjustable regulators. The output voltage of AS431I can be set to any value between VREF (2.5V) and the corresponding maximum cathode voltage (36V). The AS431I is offered in two grade initial voltage tolerance at 25℃, 0.5%, and 1%. This IC is available in 3 packages: TO-92 (bulk or ammo packing), SOT-23 and SOT-89. Features Programmable Precise Output Voltage from 2.5V to 36V High Stability Under Capacitive Load Low Minimum Cathode Current for Regulation: 10 µA (Typ.), 50µA (Max.) Low Temperature Deviation: 4.5mV Typical Sink Current Capacity from 50 µ A to 100mA Low Output Noise Wide Operating Range: -40℃ to 125℃ Applications Charger Voltage Adapter Switching Power Supply Graphic Card Precision Voltage Reference Figure 1. Package Type of AS431I TO-92(Bulk Packing) TO-92(Ammo Packing) SOT-89 SOT-23 |
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