Table of Contents
Advertisement
ADJUSTABLE PRECISION SHUNT REGULATORS
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 V
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
o
with 20PPM/
C 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 125
Applications
·
Charger
·
Voltage Adapter
·
Switching Power Supply
·
Graphic Card
·
Precision Voltage Reference
Pin Configuration
Nov. 2004
(2.5V)
REF
o
C
SOT-23-3
ANODE
3
1
2
REF
CATHODE
Parametric Table
I
(Max) (mA)
KA
I
(Min) (mA)
KA
V
/ V
Initial
OUT
REF
Tol. (%)
V
(Max) (V)
OUT
V
(Min) (V)
OUT
Z
(Typ) (Ω)
KA
Temp Coeff. (Typ)
o
(PPM/
)
C
Operating Temperature
o
(Min) (
)
C
Operating Temperature
o
(Max) (
)
C
Benefits
·
Easier to Stabilize
·
Ultra Low Temperature Coefficient
·
Higher V
Accuracy
REF
·
Wider Operating Temperature Range
·
Very Competitive Price
Additional Available Materials
·
Samples
·
Datasheet
·
Reliability Report
·
ESD Report
SOT-89
1
2
3
REF
ANODE CATHODE
BCD Semiconductor Manufacturing Limited
24
Product Brief
AZ431-A
AZ431A-A
AZ431B-A
100
100
0.4
0.4
0.4
0.8
36
36
2.5
2.5
0.15
0.15
20
20
-40
-40
+125
+125
Hide quick links:
Advertisement
Table of Contents
