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Электронный компонент: AZ431LBZ-TRE1

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LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L
Data Sheet
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
1
General Description
The AZ431L series ICs are low voltage three-terminal
adjustable regulators with guaranteed thermal stability
over a full operation range. These ICs feature sharp
turn-on characteristics, low temperature coefficient
and low output impedance, which make them ideal
substitutes for Zener diodes in applications such as
switching power supply, charger, motherboard and
other adjustable regulators.

The output voltage can be set to any value between
1.24V and 18V with two external resistors.
The AZ431L precision reference is offered in two
bandgap tolerance: 0.5% and 1%.
These ICs are available in 4 packages: TO-92, SOT-
23-3, SOT-23-5, SOT-89.
Features
Wide Programmable Precise Output Voltage from
1.24V to 18V
High Stability under Capacitive Load
Low Temperature Deviation: 3mV Typical
Low Equivalent Full-Range Temperature Coeffi-
cient: 20PPM/
o
C Typical
Low Dynamic Output Resistance: 0.05
Typical
High Sink Current Capacity from 55
A to 100
mA
Low Output Noise
Wide Operating Range of -40 to 125
o
C
Applications
Graphic Card
PC Motherboard
Voltage Adapter
Switching Power Supply
Charger
SOT-23-5
SOT-23-3
TO-92
Figure 1. Package Types of AZ431L
SOT-89
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L
Data Sheet
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
2
Figure 2. Pin Configuration of AZ431L (Top View)
Z Package
(TO-92)
(SOT-23-3)
N Package
R Package
(SOT-89)
Figure 3. Functional Block Diagram of AZ431L
Functional Block Diagram
K Package
(SOT-23-5)
ANODE
NC
CATHODE
CATHODE
ANODE
REF
REF
ANODE CATHODE
REF
3
1
2
1
2
3
3
2
1
4
5
NC
4
REF
V
REF
CATHODE
ANODE
+
-
CATHODE
ANODE
REF
1
2
3
Pin Configuration
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L
Data Sheet
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
3
Ordering Information
Circuit Type
Bandage Tolerance
B: 1%
A: 0.5%
E1: Lead Free
Blank: Tin Lead
AZ431L
Package
Tempera-
ture Range
Voltage
Tolerance
Part Number
Marking ID
Packing
Type
Tin Lead
Lead Free
Tin Lead
Lead Free
TO-92
-40 to 125
o
C
0.50%
AZ431LAZ
AZ431LAZ-E1
AZ431LAZ
AZ431LAZ-E1
Bulk
0.50%
AZ431LAZTR
AZ431LAZTR-E1
AZ431LAZ
AZ431LAZ-E1
Ammo
1%
AZ431LBZ
AZ431LBZ-E1
AZ431LBZ
AZ431LBZ-E1
Bulk
1%
AZ431LBZTR
AZ431LBZTR-E1
AZ431LBZ
AZ431LBZ-E1
Ammo
SOT-23-3
-40 to 125
o
C
0.50%
AZ431LANTR
AZ431LANTR-E1
N46
EA6
Tape & Reel
1%
AZ431LBNTR
AZ431LBNTR-E1
N47
EA7
Tape & Reel
SOT-23-5
-40 to 125
o
C
0.50%
AZ431LAKTR
AZ431LAKTR-E1
K41
E5A
Tape & Reel
1%
AZ431LBKTR
AZ431LBKTR-E1
K42
E6A
Tape & Reel
SOT-89
-40 to 125
o
C
0.50%
AZ431LARTR
AZ431LARTR-E1
R41A
E41A
Tape & Reel
1%
AZ431LBRTR
AZ431LBRTR-E1
R41B
E41B
Tape & Reel
Package
Z: TO-92
TR: Tape and Reel or Ammo
Blank: Tube or Bulk
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
N: SOT-23-3
K: SOT-23-5
R: SOT-89
-
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L
Data Sheet
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
4
Parameter
Symbol
Value
Unit
Cathode Voltage
V
KA
20
V
Cathode Current Range (Continuous)
I
KA
-100 to 100
mA
Reference Input Current Range
I
REF
10
mA
Power Dissipation
P
D
Z,R Package
770
mW
N,K Package 370
Storage Temperature Range
T
STG
-65 to 150
o
C
Package Thermal Impedance
Q
JA
TO-92
130
o
C/W
SOT-23-3
330
SOT-23-5
250
SOT-89
100
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only , and functional operation of the device at these or any other conditions
beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maxi-
mum Ratings" for extended periods may affect device reliability.
Parameter
Symbol
Min
Max
Unit
Cathode Voltage
V
KA
V
REF
18
V
Cathode Current
I
KA
0.1
100
mA
Operating Ambient Temperature Range
-40
125
o
C
Recommended Operating Conditions
Absolute Maximum Ratings (Note 1)
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR AZ431L
Data Sheet
Apr. 2005 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
5
(Typical and limits apply for T
J
=25
o
C unless otherwise noted.)
Parameter
Test
Circuit
Symbol
Conditions
Min
Typ
Max
Unit
Reference Voltage
0.5%
4
V
REF
V
KA
=V
REF,
I
KA
=10mA
1.234
1.240
1.246
V
1%
1.228
1.240
1.252
Deviation of Reference Voltage
Over-Temperature
4
V
REF
V
KA
=V
REF
I
KA
=10mA
0
o
C to 70
o
C
2 10
mV
-40
o
C to 85
o
C
3
10
Ratio of Change in V
REF
to the
Change in Cathode Voltage
5
V
REF
V
KA
I
KA
=10mA,
V
KA
:V
REF
to 16V
-0.5
-1.5
mV/V
Reference Input Current
5
I
REF
I
KA
=10mA, R1=10K
, R2=
0.15
0.4
A
Deviation of Reference Current
Over Full Temperature Range
5
I
REF
I
KA
=10mA, R1=10K
, R2=
T
A
=-40 to 85
o
C
0.1
0.4
A
Minimum Cathode Current for
Regulation
4
I
KA
(MIN)
V
KA
=V
REF
55
80
A
Off-State Cathode Current
6
I
KA
(OFF)
V
REF
=0, V
KA
=18V
0.04
0.10
A
V
KA
=6, V
REF
=0
0.01
0.05
Dynamic Impedance
4
Z
KA
V
KA
=V
REF
, I
KA
=1 to 100mA
f
1.0kHz
0.05
0.15
Electrical Characteristics