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AZ431-A Datasheet(PDF) 1 Page - BCD Semiconductor Manufacturing Limited

Part No. AZ431-A
Description  ADJUSTABLE PRECISION SHUNT REGULATORS
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Maker  BCDSEMI [BCD Semiconductor Manufacturing Limited]
Homepage  http://www.bcdsemi.com
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AZ431-A Datasheet(HTML) 1 Page - BCD Semiconductor Manufacturing Limited

   
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Description
The AZ431-A series ICs are three-terminal adjustable
shunt regulators with guaranteed thermal stability over a
full operation range. These ICs feature sharp turn-on char-
acteristics, low temperature coefficient and low output
impedance, which make them ideal substitutes for Zener
diodes in applications such as switching power supply,
charger and other adjustable regulators.
The AZ431-A series ICs are of 40V voltage type. Its out-
put voltage can be set to any value between VREF(2.5V)
and 36V.
The AZ431-A precision reference is offered in two band-
gap tolerance: 0.4% and 0.8%.
Features
· Programmable Precise Output Voltage from 2.5V to
36V
· Very Accurate Reference Voltage: 0.15% Typical
· High Stability under Capacitive Load
· Low Temperature Deviation: 4.5mV Typical
· Low Equivalent Full-range Temperature Coefficient
with 20PPM/oC Typical
· Low Dynamic Output Resistance: 0.2Ω Typical
· Sink Current Capacity from 1mA to 100 mA
· Low Output Noise
· Wide Operating Range of -40 to 125oC
Applications
· Charger
· Voltage Adapter
· Switching Power Supply
· Graphic Card
· Precision Voltage Reference
Benefits
· Easier to Stabilize
· Ultra Low Temperature Coefficient
· Higher VREF Accuracy
· Wider Operating Temperature Range
· Very Competitive Price
Parametric Table
AZ431A-A
AZ431B-A
IKA (Max) (mA)
100
100
IKA (Min) (mA)
0.4
0.4
VOUT / VREF Initial
Tol. (%)
0.4
0.8
VOUT (Max) (V)
36
36
VOUT (Min) (V)
2.5
2.5
ZKA (Typ) (Ω)
0.15
0.15
Temp Coeff. (Typ)
(PPM/oC)
20
20
Operating Temperature
(Min) (oC)
-40
-40
Operating Temperature
(Max) (oC)
+125
+125
Additional Available Materials
· Samples
· Datasheet
· Reliability Report
· ESD Report
Nov. 2004
BCD Semiconductor Manufacturing Limited
Product Brief
ADJUSTABLE PRECISION SHUNT REGULATORS
AZ431-A
Pin Configuration
SOT-23-3
SOT-89
ANODE
REF
CATHODE
REF
ANODE CATHODE
1
2
3
1
2
3


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