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LM4431M3-2.5 Datasheet

  • LM4431M3-2.5

  • Micropower Shunt Voltage Reference

  • 8頁

  • NSC

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LM4431 Micropower Shunt Voltage Reference
July 1998
LM4431
Micropower Shunt Voltage Reference
General Description
Ideal for space critical applications, the LM4431 voltage ref-
erence is available in the sub-miniature (3 mm x 1.3 mm)
SOT-23 surface-mount package. The LM4431鈥檚 advanced
design eliminates the need for an external stabilizing capaci-
tor while ensuring stability with any capacitive load, thus
making the LM4431 easy to use. The operating current
range is 100 碌A(chǔ) to 15 mA.
The LM4431 utilizes fuse and zener-zap reverse breakdown
voltage trim during wafer sort to ensure that the parts have
an accuracy of better than
鹵
2.0% at 25藲C. Bandgap refer-
ence temperature drift curvature correction and low dynamic
impedance ensure stable reverse breakdown voltage accu-
racy over a wide range of operating temperatures and cur-
rents.
n
Tolerates capacitive loads
n
Fixed reverse breakdown voltage of 2.50V
Key Specifications
n
n
n
n
n
Output voltage tolerance 25藲C:
鹵
2.0% (max)
Low output noise (10 Hz to 10 kHz): 35 碌V
rms
(typ)
Wide operating current range: 100 碌A(chǔ) to 15 mA
Commercial temperature range: 0藲C to +70藲C
Low temperature coefficient: 30 ppm/藲C (typ)
Applications
n
n
n
n
n
n
n
Portable, Battery-Powered Equipment
Data Acquisition Systems
Instrumentation
Process Control
Energy Management
Product Testing
Power Supplies
Features
n
Small package: SOT-23
n
No output capacitor required
Connection Diagram
SOT-23
DS011374-1
* This pin must be left floating or connected to pin 2.
Top View
Order Number LM4431M3-2.5
See NS Package Number M03B
(JEDEC Registration TO-236AB)
SOT-23 Package Marking Information
Only three fields of marking are possible on the SOT-23鈥檚 small surface. The following table gives the meaning of the three
fields.
Part Marking
S2E
First Field:
S = Reference
Second Field:
2 = 2.500V Voltage Option
Third Field:
E = Initial Reverse Breakdown Voltage Tolerance of
鹵
2.0%
Field Definition
漏 1998 National Semiconductor Corporation
DS011374
www.national.com

LM4431M3-2.5 產(chǎn)品屬性

  • National Semiconductor (TI)

  • Voltage References

  • Shunt References

  • Precision

  • 2.5 V

  • 2 %

  • 30 PPM/C (Typ)

  • 15 mA

  • + 70 C

  • SOT-23

  • Reel

  • 0 C

  • SMD/SMT

  • 1000

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