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STD 2.5V Reference voltage copy

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Cloned from 2.5V Reference voltage

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Update time: 2018-04-16 15:37:12
Creation time: 2018-04-16 15:37:10
Description
1、Module description: The LM236-2.5, LM336-2.5, and LM336B-2.5 integrated circuits are precision 2.5-V shunt regulator diodes. These reference circuits operate as low-temperature-coefficient 2.5-V Zener diodes with a 0.2-Ω dynamic impedance. A third terminal provided on the circuit allows the reference voltage and temperature coefficient to be trimmed easily. The series is useful as precision 2.5-V low-voltage references (VZ) for digital voltmeters, power supplies, or operational-amplifier circuitry. The 2.5-V voltage reference makes it convenient to obtain a stable reference from 5-V logic supplies. Devices in this series operate as shunt regulators, and can be used as either positive or negative voltage references. 2、Function Description: Precision 2.5V reference voltage source is used as reference source. 3、Description of each function module: ![enter image description here][1] 4、Components and PCB diagram before welding: ![enter image description here][2] 5、Physical map after welding: ![enter image description here][3] ![enter image description here][4] ![enter image description here][5] [1]: /editor/20160418/571432b264eb6.png [2]: /editor/20160418/571432dca8ff5.png [3]: /editor/20160503/5728464c80c1a.JPG [4]: /editor/20160503/5728464f700bb.JPG [5]: /editor/20160503/572846534b7d6.JPG
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ID Name Designator Footprint Quantity
1 LM336BLP-2.5 U1 TO-92 1
2 2.49k R1 3-0603 1
3 10k R2 RW 1
4 1N914 D1,D2 DO-35 2
5 SIP2 P1,P2 HDR1X2 2
6 1k R3 3-0603 1
7 LED D3 L-0603 1

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