AZ431LAN-TR [BCDSEMI]
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR; 低电压（ 1.24V ）可调式精密并联稳压器
| 型号： | AZ431LAN-TR |
| 厂家： | 
BCD SEMICONDUCTOR MANUFACTURING LIMITED |
| 描述： | LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR |
| 文件： | 总16页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
General Description
Features
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.
·
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-
·
·
·
o
cient: 20PPM/ C Typical
·
·
Low Dynamic Output Resistance: 0.05Ω Typical
High Sink Current Capacity from 55µA to 100
mA
The output voltage can be set to any value between
1.24V and 18V with two external resistors.
·
·
Low Output Noise
o
Wide Operating Range of -40 to 125 C
The AZ431L precision reference is offered in two
bandgap tolerance: 0.5% and 1%.
Applications
These ICs are available in 4 packages: TO-92, SOT-
23-3, SOT-23-5, SOT-89.
·
·
·
·
·
Graphic Card
PC Motherboard
Voltage Adapter
Switching Power Supply
Charger
SOT-23-3
TO-92
SOT-23-5
SOT-89
Figure 1. Package Types of AZ431L
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Pin Configuration
N Package
(SOT-23-3)
K Package
(SOT-23-5)
R Package
(SOT-89)
Z Package
(TO-92)
ANODE
3
2
1
CATHODE
ANODE
NC
NC
1
2
3
5
4
ANODE
REF
3
1
2
2
3
1
REF
CATHODE
REF
CATHODE
REF ANODE CATHODE
Figure 2. Pin Configuration of AZ431L (Top View)
Functional Block Diagram
CATHODE
+
-
REF
VREF
ANODE
Figure 3. Functional Block Diagram of AZ431L
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Ordering Information
-
AZ431L
E1: Lead Free
Blank: Tin Lead
Circuit Type
TR: Tape and Reel or Ammo
Blank: Tube or Bulk
Bandage Tolerance
A: 0.5%
Package
Z: TO-92
N: SOT-23-3
K: SOT-23-5
R: SOT-89
B: 1%
Part Number
Marking ID
Tin Lead
Tempera-
ture Range Tolerance
Voltage
Packing
Type
Package
Tin Lead
AZ431LAZ
Lead Free
Lead Free
AZ431LAZ-E1
AZ431LAZ-E1
AZ431LBZ-E1
AZ431LBZ-E1
EA6
0.50%
0.50%
AZ431LAZ-E1
AZ431LAZ
AZ431LAZ
AZ431LBZ
AZ431LBZ
N46
Bulk
AZ431LAZTR
AZ431LBZ
AZ431LAZTR-E1
AZ431LBZ-E1
Ammo
-40 to 125oC
1%
TO-92
Bulk
1%
AZ431LBZTR
AZ431LANTR
AZ431LBNTR
AZ431LAKTR
AZ431LBKTR
AZ431LARTR
AZ431LBRTR
AZ431LBZTR-E1
AZ431LANTR-E1
AZ431LBNTR-E1
AZ431LAKTR-E1
AZ431LBKTR-E1
AZ431LARTR-E1
AZ431LBRTR-E1
Ammo
0.50%
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
Tape & Reel
-40 to 125oC
1%
SOT-23-3
SOT-23-5
SOT-89
N47
EA7
0.50%
K41
E5A
-40 to 125oC
1%
K42
E6A
0.50%
R41A
E41A
-40 to 125oC
1%
R41B
E41B
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Absolute Maximum Ratings (Note 1)
Parameter
Symbol
Value
20
Unit
V
VKA
Cathode Voltage
IKA
Cathode Current Range (Continuous)
Reference Input Current Range
-100 to 100
10
mA
mA
IREF
Z,R Package
N,K Package
-65 to 150
770
370
PD
Power Dissipation
mW
oC
TSTG
Storage Temperature Range
TO-92
130
330
250
100
SOT-23-3
SOT-23-5
SOT-89
oC/W
QJA
Package Thermal Impedance
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.
Recommended Operating Conditions
Parameter
Symbol
Min
Max
18
Unit
V
V
V
REF
Cathode Voltage
KA
I
Cathode Current
0.1
100
125
mA
KA
o
Operating Ambient Temperature Range
-40
C
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Electrical Characteristics
o
(Typical and limits apply for T =25 C unless otherwise noted.)
J
Test
Circuit
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
0.5%
1%
1.234
1.228
1.240
1.240
2
1.246
1.252
10
VREF VKA=VREF, KA=10mA
I
Reference Voltage
4
V
0oC to 70oC
VKA=VREF
IKA=10mA
Deviation of Reference Voltage
Over-Temperature
4
∆VREF
mV
-40oC to 85oC
3
10
∆VREF IKA=10mA,
∆VKA ∆VKA:VREF to 16V
Ratio of Change in VREF to the
Change in Cathode Voltage
-0.5
-1.5
5
5
mV/V
IREF IKA=10mA, R1=10KΩ, R2=∞
Reference Input Current
0.15
0.4
µ A
µ A
µ A
IKA=10mA, R1=10KΩ, R2=∞
TA=-40 to 85oC
Deviation of Reference Current
Over Full Temperature Range
∆IREF
5
4
6
4
0.1
55
0.4
80
IKA
Minimum Cathode Current for
Regulation
VKA=VREF
(MIN)
VREF=0, VKA=18V
VKA=6, VREF=0
0.04
0.01
0.10
0.05
IKA
µ A
Off-State Cathode Current
Dynamic Impedance
(OFF)
VKA=VREF, IKA=1 to 100mA
ZKA
0.05
0.15
Ω
f ≤ 1.0kHz
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Electrical Characteristics (Continued)
R1
VKA
VIN
IKA
VREF
Figure 4. Test Circuit 4 for VKA=VREF
R3
VIN
VKA
IKA
R1
IREF
VKA=VREF(1+R1/R2)+ IREF . R1
R2
VREF
Figure 5. Test Circuit 5 for VKA>VREF
VKA
VIN
IOFF
Figure 6. Test Circuit 6 for IOFF
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Typical Performance Characteristics
1.242
0.18
VKA=VREF
R2=∞
1.241
IKA=10mA
I
KA=10mA
0.17
R1=10KΩ
1.240
0.16
1.239
0.15
1.238
0.14
1.237
0.13
1.236
0.12
-50
1.235
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
150
Ambient Temperature (oC)
Ambient Temperature (oC)
Figure 7. Reference Voltage vs. Ambient Temperature
Figure 8. Reference Current vs. Ambient Temperature
400
150
VKA=VREF
TA=25oC
VKA=VREF
TA=25oC
300
100
200
50
0
100
0
-100
-200
-300
-50
-100
-150
-1
0
1
-1
0
1
Cathode Voltage (V)
Cathode Voltage (V)
Figure 9. Cathode Current vs. Cathode Voltage
Figure 10. Current vs. Cathode Voltage
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Typical Performance Characteristics (Continued)
Output
360
I KA
60
6.8K
IKA=10mA
TA=25oC
50
40
30
20
10
0
10uF
4.3K
5V
500K
100
1k
10k
100k
GND
Small Signal Frequency (HZ)
Figure 11. Small Signal Voltage Gain vs. Frequency
10
Output
100Ω
1
IKA = 1mA to 100mA
IKA
50Ω
0.1
0.01
GND
1k
10k
100k
1M
Frequency (Hz)
Figure 12. Dynamic Impedance vs. Frequency
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Typical Performance Characteristics (Continued)
3
Input
Output
R1
1.8KΩ
2
1
0
Pulse
Generator
f=100KHz
R2
50Ω
Output
GND
-1
0
1
2
3
4
5
6
Time (µS)
Figure 13. Pulse Response of Input and Output Voltage
-0.30
IKA=10mA
-0.35
-0.40
-0.45
-0.50
-0.55
∆VKA=VREF to 16V.
-40
-20
0
20
40
60
80
100
120
Ambient Temperature (oC)
Figure 14. Ratio of Delta Reference Voltage to the Ratio of
Cathode Voltage vs. Ambient Temperature
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Typical ApplicationS
R3
VOUT
VIN
R1
VO=(1+R1/R2) VREF
VREF
R2
AZ431L
Figure 15. Shunt Regulator
VIN
VOUT
R1
R4
R2
VO=(1+R2/R3) VREF
VREF
R3
AZ431L
Figure 16. High Current Shunt Regulator
R2
VIN
IOUT
IOUT = VREF/R2 + IKA
R1
AZ431L
Figure17. Current Source or Current Limit
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Typical Application (Continued)
V
AZ1117
2.5V/1A
IN
R1
8.2K
R2
250
AZ431L
R3
250
Figure18. Precision 5-V 1.5A Regulator
R3
R4
C1
R1
VOUT
R2 680
R5
C2
U2
Q1
3
4
COMP
2
AZ431L
PWM Controller
VFB
PS521
Figure 19. PWM Converter with Reference
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Mechanical Dimensions
TO-92
Unit: mm (inch)
1.100(0.043)
3.430(0.135)
MIN
1.400(0.055)
0.360(0.014)
0.510(0.020)
0.000(0.000)
0.380(0.015)
Φ1.600(0.063)
MAX
4.400(0.173)
4.700(0.185)
0.380(0.015)
0.550(0.022)
1.270(0.050)
TYP
2.440(0.096)
2.640(0.104)
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Mechanical Dimensions (Continued)
SOT-23-3
Unit: mm(inch)
0.100(0.004) GAUGE PLANE
7.0°
4×R0.100(0.004)
3.0 °
0.500(0.020)
0.700(0.028)
R0.100(0.004)
0.900(0.035)
1.100(0.043)
7.0°
~
0.0° 10.0°
2.0°
0.020(0.001)
0.100(0.004)
1.050(0.041)REF
0.080(0.003)
0.150(0.006)
0.200(0.008)MIN
0.550(0.022)REF
2.800(0.110)
3.000(0.118)
1.200(0.047)
1.400(0.055)
2.300(0.091)
2.500(0.098)
0.390(0.015)
0.450(0.018)
0.920(0.036)
0.980(0.039)
1.900(0.075)REF
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Mechanical Dimensions (Continued)
SOT-23-5
Unit: mm(inch)
2.800(0.110)
3.000(0.118)
0.080(0.003)
0.220(0.009)
0.200(0.008)
0.300(0.012)
4°
4°
R0.100(0.004)
R0.200(0.008)
R0.100(0.004)
0.925(0.036)
0.975(0.038)
0.300(0.012)
0.500(0.020)
5°
15°
0.010(0.0004)
0.150(0.006)
0.650(0.026)
1.050(0.041)
5°
15°
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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Data Sheet
LOW VOLTAGE (1.24V) ADJUSTABLE PRECISION SHUNT REGULATOR
AZ431L
Mechanical Dimensions (Continued)
SOT-89
Unit: mm(inch)
4.400(0.173)
1.400(0.055)
1.600(0.063)
4.600(0.181)
1.630(0.064)
1.830(0.072)
0.000(0.000)
0.076(0.003)
1.400(0.055)*
R0.200(0.008)
2.300(0.091)
2.600(0.102)
3°
0.360(0.014)
0.480(0.019)
0.440(0.017)
0.360(0.014)
0.440(0.017)
0.360(0.014)
0.480(0.019)
0.560(0.022)
3.000(0.118)
R0.150(0.006)
BCD Semiconductor Manufacturing Limited
Apr. 2005 Rev. 1. 2
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BCD Semiconductor Corporation
3170 De La Cruz Blvd, Suite # 105 Santa Clara, CA 95054-2411, U.S.A
Tel: +1-408-988 6388, Fax: +1-408-988 6386
Tel: +86-21-6485-1491, Fax: +86-21-5450-0008
Tel: +86-21-6495 9539, Fax: +86-21-6485 9673
Shanghai SIM-BCD Semiconductor Manufacturing Co., Ltd.
800 Yi Shan Road, Shanghai 200233, PRC
Advanced Analog Circuits (Shanghai) Corporation
8F, B Zone, 900 Yi Shan Road, Shanghai 200233, PRC
BCD Semiconductor (Taiwan) Company Limited
Room 2210, 22nd Fl, 333, Keelung Road, Sec. 1, TaiPei (110), Taiwan
Tel: +886-2-2758 6828, Fax: +886-2-2758 6892
IMPORTANT NOTICE
BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any pro-
ducts or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for
use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any
liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limi-
ted does not convey any license under its patent rights or other rights nor the rights of others.
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