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LM431CCM3X Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LM431CCM3X Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 13 page LM431 Adjustable Precision Zener Shunt Regulator General Description The LM431 is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. It is now available in a chip sized pack- age (4-Bump micro SMD) using National’s micro SMD pack- age technology. The output voltage may be set at any level greater than 2.5V (V REF) up to 36V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turn-on characteristics this device is an excel- lent replacement for many zener diode applications. Features n Average temperature coefficient 50 ppm/˚C n Temperature compensated for operation over the full temperature range n Programmable output voltage n Fast turn-on response n Low output noise n LM431 in micro SMD package n See AN-1112 for micro SMD considerations Connection Diagrams TO-92: Plastic Package 01005501 Top View SO-8: 8-Pin Surface Mount 01005502 Top view SOT-23: 3-Lead Small Outline 01005528 Top View 4-Bump micro SMD 01005554 Top View (bump side down) Note: *NC = Not internally connected. Must be electrically isolated from the rest of the circuit for the microSMD package. March 2005 © 2005 National Semiconductor Corporation DS010055 www.national.com |
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