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ELM

ELM0431BA Datasheet Preview

ELM0431BA Datasheet

2.5V Programable shunt regulator

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ELM0431BA 2.5V Programable shunt regulator
■General description
ELM0431BA is three-terminal adjustable shunt regulator utilizing an accurate 2.5V band-gap reference. The
output voltage can be set to any value between 2.5V (Vref) to 29V with two external resistors as shown in the
typical application circuit. The device exhibit a wide operating current range of 0.4 to 100 mA with a typical
dynamic impedance of 0.25Ω. The characteristics of these reference make it excellent replacements for zener
diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5V volt
reference makes it convenient to obtain a stable reference from 5.0V logic supplies.
ELM0431BA shunt regulator is available in a SOT-23 package.
■Features
• Low cost solution
• Shunt capacity
• Output voltage range(adj.)
• Output impedance
• Trimmed band-gap design
• Package
: 100mA
: Set up to 29V
: Typ.0.25Ω
: 1%
: SOT-23
■Application
• Linear regulator
• Precision voltage reference
• Switching power supplies
• Battery operating equipment
• Instrumentation
■Maximum absolute ratings
Parameter
Cathode-Anode reverse breakdown voltage
Cathode –Anode current
Reference input current
Power dissipation
Junction temperature
Storage temperature
Symbol
Vka
Ika
Iref
Pd
Tj
Tstg
Limit
30
100
10
200
150
-65 to +150
Unit
V
mA
mA
mW
°C
°C
■Selection guide
ELM0431BA-S
Symbol
a Package
b Product version
c Taping direction
* Taping direction is one way.
B: SOT-23
A
S: Refer to PKG file
ELM0431 B A - S
↑↑ ↑
ab c
■Pin configuration
SOT-23(TOP VIEW)
3
12
Pin No.
1
2
3
Pin name
REFERENCE
CATHODE
ANODE
■Circuit
Cathod(K)
Reference(R)
Anode(A)
4 - 1 Rev.1.1




ELM

ELM0431BA Datasheet Preview

ELM0431BA Datasheet

2.5V Programable shunt regulator

No Preview Available !

ELM0431BA 2.5V Programable shunt regulator
■Typical application
Vin(batt)
R
R1
0.1%
Vout
Return
Vref
R2
0.1%
Shunt regulator
ELM0431BA
Vout=(1+R1/R2)Vref
■Block diagram
Reference
(R)
Cathod
(K)
2.5 Vref
■Marking
SOT-23
abcde
Anode
(A)
a to e : Assembly lot No.
A to Z (I, O, X excepted) and 0 to 9
4- 2
Rev.1.1


Part Number ELM0431BA
Description 2.5V Programable shunt regulator
Maker ELM
Total Page 4 Pages
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