AME AME431BAJETA25Z Adjustable precision shunt regulator Datasheet

AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n General Description
The AME431B series ICs are 3-terminal adjustable
shunt regulator with guaranteed temperature stability over
a full operation range. These ICs feature sharp turn-on
characteristics, low temperature coefficient and low output impendance, which make them ideal substitutes for
Zener diodes in applications such as switching power
supply, charger and other adjustable regulators.
n Functional Block Diagram
Cathode
REF
The reference is set to 2.5V for AME431Bxxxxx25. The
output voltage can be set to 2.5V to 36V for VREF=2.5V
part type with two external resistors.
VREF
The AME431B precision reference is offered in two reference tolerance: 0.5% and 1.0%
The 5 main packages have low thermal impendance
which allows operation over a wide range of -40oC t o
Anode
+125oC.
n Features
n Applications
l High Stability under Capacitive Load
l Adjustable Power Supplies
l Low Temperature Deviation: 4.5mV Typical
l Linear Regulators
l Low Equivalent Full-Range Temperature Coefficient
l Battery Operated Computer
with 20PPM/oC Typical
l Low Dynamic Output Resistance: 0.2Ω Typical
l Sink Current Capacity from 1mA to 100mA
l Low Output Noise
l Available in 7 Packages: TO-92-3, SOT-23,
SOT-89, SOP-8, SOT-25, TSOT-23 and TSOT-25
l Portable Electronics
l
l
l
l
l
Instrumentation
Switching Power Supply
Mother Board
LCD Monitor
Note Book Computer
l All AME’ s Lead Free Products Meet RoHS
Standards
Rev.B.04
1
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Typical Applications
Shunt Regulator
R3
VIN
VOUT
R1
VO=(1+R1/R2) VREF
VREF
AME431B
R2
High Current Shunt Regulator
VIN
R1
VOUT
R4
R2
VO =(1+R2/R3) VREF
VREF
AME431B
R3
Current Source or Current Limit
R2
VIN
IOUT
IOUT =VREF/R2+IKA
R1
AME431B
2
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Typical Applications (contd.)
Precision 5V 1.5A Regulator
VIN
AME1117
VOUT
5V, 1.5A
Adjust
R1
8.2K
R2
250
AME431B
R3
250
Precision 5V 1.5A Regulator
R3
C1
R4
R2
680
VOUT
R5
U2
R1
C2
Q1
3
COMP
PWM
Controller
R6
2
AME431B
VFB
4
PS521
Rev.B.04
3
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Pin Configuration
SOT-23/TSOT-23
Top View
3
SOT-23/TSOT-23
Top View
3
AME431BAJETXXXX
AME431BBJETXXXX
1. Cathode
1. REF
2. REF
AME431B
3. Anode
2. Cathode
AME431B
* Die Attach:
1
2
Conductive Epoxy
SOT-89
Front View
2
3
2
Conductive Epoxy
5
4
AME431BAJEVXXXX
1. REF
1. NC
2. Anode
2. NC
3. Cathode
1
* Die Attach:
1
SOT-25/TSOT-25
Top View
AME431BAJFTXXXX
AME431B
3. Anode
AME431B
3. Cathode
4. REF
* Die Attach:
Conductive Epoxy
5. Andode
1
2
3
* Die Attach:
Non-Conductive Epoxy
SOP-8
Top View
8
7
6
TO-92-3
Top View
5
AME431BAJATXXXX
AME431BAJHAXXXX
1. REF
1. Cathode
2. Anode
AME431B
3. Cathode
3. Anode
AME431B
4. NC
* Die Attach:
5. NC
Conductive Epoxy
6. Anode
1
2
3
4
2. Anode
7. Anode
8. REF
* Die Attach:
1
2
3
Conductive Epoxy
4
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Ordering Information
AME431B x x x x x xx x - x
Special Feature2
Special Feature1
Reference Voltage
Accuracy
Number of Pins
Package Type
Operating Ambient Temperature Range
Pin Configuration
Pin
Configuration
A
(SOT-23)
(TSOT-23)
B
(SOT-23)
(TSOT-23)
A
(SOT-89)
A
(TO-92-3)
A
(SOP-8)
A
(SOT-25)
(TSOT-25)
1. Cathode
2. REF
3. Anode
Operating Ambient
Temperature Range
J: -40OC to +125OC
Package
Type
A: TO-92
E: SOT-2X
F: SOT-89
H: SOP
Number
of
Pins
A: 8
T: 3
V: 5
Accuracy
A: 0.5%
B: 1.0%
Reference
Voltage
25: 2.5V
Special
Feature1
Y: Lead free &
Low profile
Z: Lead free
Special Feature2
(For TO-92 Package Only)
N/A:
1:
Package
Taping
Bulk
Lead Pitch
5.08mm
2.54mm
1. REF
2. Cathode
3. Anode
1. REF
2. Anode
3. Cathode
1. REF
2. Anode
3. Cathode
1. Cathode
2. Anode
3. Anode
4. NC
5. NC
6. Anode
7. Anode
8. REF
1. NC
2. NC
3. Cathode
4. REF
5. Anode
Rev.B.04
5
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Ordering Information
Reference
Operating Ambient
Accuracy Package
Voltage
Temperature Range
Part Number
Marking*
AME431BAJETA25Z
BAFww
2.5V
0.5%
SOT-23
- 40oC to +125oC
AME431BAJETA25Y
BAFww
2.5V
0.5%
TSOT-23
- 40oC to +125oC
AME431BBJETA25Z
BAGww
2.5V
0.5%
SOT-23
- 40oC to +125oC
AME431BBJETA25Y
BAGww
2.5V
0.5%
TSOT-23
- 40oC to +125oC
AME431BAJETB25Z
AZAww
2.5V
1.0%
SOT-23
- 40oC to +125oC
AME431BAJETB25Y
AZAww
2.5V
1.0%
TSOT-23
- 40oC to +125oC
AME431BBJETB25Z
AZBww
2.5V
1.0%
SOT-23
- 40oC to +125oC
AME431BBJETB25Y
AZBww
2.5V
1.0%
TSOT-23
- 40oC to +125oC
2.5V
0.5%
SOT-89
- 40oC to +125oC
2.5V
1.0%
SOT-89
- 40oC to +125oC
2.5V
1.0%
SOP-8
- 40oC to +125oC
2.5V
1.0%
TO-92-3
- 40oC to +125oC
2.5V
1.0%
TO-92-3
- 40oC to +125oC
2.5V
0.5%
TO-92-3
- 40oC to +125oC
2.5V
0.5%
TO-92-3
- 40oC to +125oC
AME431BAJFTA25Z
AME431BAJFTB25Z
AME431BAJHAB25Z
AME431BAJATB25Z
AME431BAJATB25Z-1
AME431BAJATA25Z
AME431BAJATA25Z-1
A431B
BKXww
A431B
BJBww
431B
BJCww
AME25
431B
AJATB
yyww
AME25
431B
AJATB
yyww
AME25
431B
AJATA
yyww
AME25
431B
AJATA
yyww
Note: yyww & ww represents the date code and pls refer to Date Code Rule on Package Dimension.
* A line on top of the first letter represents lead free plating such as BAFww.
Please consult AME sales office or authorized Rep./Distributor for output voltage and package type availability.
6
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Absolute Maximum Ratings
Maximum
Unit
Cathode Current
150
mA
Cathode Voltage
40
V
Parameter
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
n Recommended Operating Conditions
Rating
Unit
Supply Current
1 to 100
mA
Operation Voltage Range
2.5 to 36
V
Parameter
Ambient Temperature Range
TA
-40 to +125
o
Junction Temperature Range
TJ
-40 to +125
o
Storage Temperature Range
TSTG
-65 to +150
o
Rev.B.04
C
C
C
7
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Thermal Information
Parameter
Package
Die Attach
Symbol
SOT-23**
TSOT-23
SOT-89*
Thermal Resistance
(Junction to Case)
40
Conductive Epoxy
θJC
SOP-8**
Thermal Resistance
(Junction to Ambient)
Non-Conductive
Epoxy
140
o
C/W
260
180
Conductive Epoxy
θJA
TO-92-3
SOP-8
SOT-25
TSOT-25
Internal Power Dissipation
Non-Conductive
Epoxy
280
400
550
Conductive Epoxy
TO-92-3
PD
SOP-8
SOT-25
TSOT-25
150
150
SOT-23
TSOT-23
SOT-89
80
60
SOT-23
TSOT-23
SOT-89
Unit
81
TO-92-3**
SOT-25**
TSOT-25
Maximum
625
mW
810
Non-Conductive
Epoxy
Solder Iron (10 Sec)***
400
350
o
C
* Measure θJC on backside center of tab.
** Measure θJC on center of molding compound if IC has no tab.
*** MIL-STD-202G 210F
8
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Electrical Specifications (AME431Bxxxxx25)
TA = 250C, IREF = 10mA unless otherwise specified
Test
Symbol
Circuit
Parameter
Test Condition
0.5%
Reference Voltage
1.0%
Deviation of Reference Voltage
Over Temperature
1
VREF
1
∆VREF
V KA = V REF, IKA = 10mA
0oC to 70oC
VKA = V REF
o
IKA = 10mA
o
-40 C to +125 C
∆V KA =
Ratio of Change in Reference
Voltage to the Change in
Cathode Voltage
2
Reference Current
2
∆VREF
∆V KA
10V to VREF
IKA = 10mA
R1 = 10KΩ, R2 = ∞
∆IREF
2
IKA = 10mA
o
Max
2.4875
2.50
2.5125
2.4750
2.50
2.5250
-
4.5
8
-
4.5
18
-
-1.0
-2.7
Units
V
mV
-
-0.5
-2.0
-
0.7
4.0
µA
-
0.4
1.2
µA
∞
R1 = 10KΩ, R2 =
Deviation of Reference Current
Over Full Temperature Range
Typ
mV/V
∆V KA =
36V to 10V
IKA = 10mA
IREF
Min
o
TA = -40 C to +125 C
Minimum Cathode Current for
Regulation
1
IKA
(MIN)
V KA = V REF
-
0.4
1.0
mA
Off-State Cathode Current
3
IKA
(OFF)
V KA = 36V, VREF = 0V
-
0.05
1.0
µA
Dynamic Impendance
1
ZKA
VKA = V REF , IKA = 1 to 100mA
F<1KHz
-
0.15
0.5
Ω
R1
VIN
VKA
IKA
R3
VIN
V KA
VIN
IKA
VKA
IOFF
R1
IREF
VKA=VREF (1+R1/R2)+IREFR1
R2
VREF
VREF
Figure1.
Test Circuit for VKA=VREF
Rev.B.04
Figure2.
Test Circuit for VKA>VREF
Figure3.
Test Circuit for IOFF
9
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
Current vs. Cathode Voltage
Cathode Current vs. Cathode Voltage
T A=
VKA=VREF
T A= 25oC
800
VKA=VREF
25oC
Cathode Current (µA)
Cathode Current (mA)
150
100
50
0
-50
600
400
340
200
0
-200
-100
-2
-1
0
1
2
3
-1.0
-0.5
0.0
1.0
1.5
2.0
2.495
Reference Voltage vs. Cathode Current
2.520
1.6
2.515
Reference Voltage (V)
Reference Current (µA)
Reference Current vs. Temperature
1.7
1.5
1.4
1.3
1.2
1.1
1.0
-45
0.5
Cathode Voltage (V)
Cathode Voltage (V)
2.510
2.505
2.500
2.495
2.490
2.485
-5
25
55
85
115 125
2.480
10
20
30
o
Temperature ( C)
40
50
60
70
80
90
100
110
Cathode Current (mA)
Small Signal Voltage Gain vs. Frequency
1K
60
10K
100K
1000K
T A= 25oC
50
60
50
Output
Av (dB)
IKA= 10mA
40
40
30
30
20
20
10
10
15K
IKA
242
10uF
8.2K
0
1K
0
10K
100K
1000K
GND
Small Signal Frequency
10
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
Input and Output Voltage (V)
Small Signal Voltage Gain vs. Frequency
5
220
Input
Output
4
V REF = 2.5V
Pulse
Generator
f=100KHz
3
Output
2
50
1
GND
0
0
2
4
6
Time (µS)
Reference Impedance vs. Frequency
Reference Impedance (Ω)
1K
IKA= 10mA
Output
TA= 25oC
10
IK A
50
1
0.1
1K
10K
100K
GND
1000K
Frequency (Hz)
Stability Boundary Conditions vs. Load Capacitance
100
Cathode Current (mA)
90
80
70
A: - - - VKA=5V
B: ___ VKA=10V
VKA=15V: No oscillation
R1(10K)
IKA
150
60
50
40
A
30
R2
20
10
0
0.01uF
B
0.1uF
1uF
2uF
Load Capacitance
Rev.B.04
11
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
Off-State Current vs. Temperature
Delta Reference Voltage vs. Temperature
2.0
VREF = 2.5V
-0.2
Off-State Current (µA)
Delta Vref/Delta VK(mV/V)
0
-0.4
-0.6
-0.8
-1
-1.2
-1.4
-45
1.8
VKA= 36V
1.6
VREF = 0
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
-25
0
25
55
70
100
-40
125
-20
Impedance vs. Temperature
Reference Voltage (V)
Impedance (1mA-100mA) ohm
40
80
60
100
120
2.510
0.20
0.15
0.10
0.05
-5
25
55
85
o
Temperature ( C)
12
20
Reference Voltage vs. Temperature
0.25
0.00
-45
0
Temperature (oC)
Temperature (oC)
115 125
VKA= VREF
2.505
IKA=10mA
2.500
2.495
2.490
2.485
-45
-5
25
55
85
115
125
Temperature (oC)
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Date Code Rule
Marking
Date Code
Year
A
A
A
W
W
xxx0
A
A
A
W
W
xxx1
A
A
A
W
W
xxx2
A
A
A
W
W
xxx3
A
A
A
W
W
xxx4
A
A
A
W
W
xxx5
A
A
A
W
W
xxx6
A
A
A
W
W
xxx7
A
A
A
W
W
xxx8
A
A
A
W
W
xxx9
n Tape and Reel Dimension
SOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.B.04
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-25
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
13
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Tape and Reel Dimension
TSOT-25
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-25
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
SOT-89
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
14
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-89
12.0±0.1 mm
4.0±0.1 mm
1000pcs
180±1 mm
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Tape and Reel Dimension
SOT-23
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOT-23
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
TSOT-23
P
W
AME
AME
PIN 1
Carrier Tape, Number of Components Per Reel and Reel Size
Rev.B.04
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
TSOT-23
8.0±0.1 mm
4.0±0.1 mm
3000pcs
180±1 mm
15
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Tape and Reel Dimension
SOP-8
P
PIN 1
W
AME
AME
Carrier Tape, Number of Components Per Reel and Reel Size
Package
Carrier Width (W)
Pitch (P)
Part Per Full Reel
Reel Size
SOP-8
12.0±0.1 mm
4.0±0.1 mm
2500pcs
330±1 mm
TO-92-3
AME
AME
PIN 1
W
P
Carrier Tape, Number of Components Per Reel and Reel Size
Package
TO-92-3
16
Carrier Width (W)
+1.0
mm
-0.5
18.0
Pitch (P)
Part Per Full Reel
Reel Size
12.7±0.2 mm
2000pcs
N/A
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Package Dimension
TO-92-3 (bulk pack)
SYMBOLS
Top View
A
L
e e1
w
PIN 1
D
Side View
A
R
INCHES
MIN
MAX
MIN
MAX
2.80
4.95
0.1102
0.1949
b
0.40REF
0.0157REF
E
3.94REF
0.1551REF
e
2.54REF
0.1000REF
e1
1.27REF
0.0500REF
L
E-PIN C 1/16
MILLIMETERS
12.70
15.49
2.29
R
0.5000
0.6098
0.0902
W
0.35
0.76
0.0138
0.0299
D
3.80
4.95
0.1496
0.1949
b
Notes:
1. Package outline exclusive of any mold flashes dimension.
2. Package outline exclusive of burr dimension.
3. Lead pitch=2.54mm is bulk pack.
4. Lead pitch=5.08mm is tape pack.
E
TO-92-3 (tape pack)
SYMBOLS
Top View
L
e
e1
w
A
b
PIN 1
D
E
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
2.80
4.95
0.1102
0.1949
0.40REF
2.40
3.94
0.0157REF
0.0945
0.1551
e
5.08REF
0.2REF
e1
2.54REF
0.1REF
E-PIN C 1/16
L
Side View
12.70
R
A
R
b
15.49
2.00
0.5000
0.6098
0.0787
W
0.35
0.76
0.0138
0.0299
D
3.80
4.95
0.1496
0.1949
E
Notes:
1. Package outline exclusive of any mold flashes.
2. Package outline exclusive of burr dimension.
3. Lead pitch=2.54mm is bulk pack.
4. Lead pitch=5.08mm is tape pack.
Rev.B.04
17
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Package Dimension
SOT-23
Top View
Side View
D
SYMBOLS
MAX
MIN
MAX
A
1.00
1.40
0.0394
0.0551
A1
0.00
0.15
0.0000
0.0059
b
0.35
0.50
0.0138
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
H
E
L
e
e
H
L
Front View
INCHES
MIN
θ1
PIN 1
MILLIMETERS
2.40
3.00
0.35BSC
0o
10o
0.0748 BSC
0.09449 0.11811
0.0138BSC
0o
10o
A
θ1
1.90 BSC
A1
b
TSOT-23
Top View
Side View
D
θ1
E
H
SYMBOLS
L
PIN 1
e
INCHES
MIN
MAX
MIN
MAX
A+A1
0.80
1.30
0.0315
0.0512
b
0.35
0.50
0.0138
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.20
1.80
0.0472
0.0709
e
H
L
Front View
MILLIMETERS
2.40
3.00
0.35BSC
0o
10 o
0.0748 BSC
0.09449 0.11811
0.0138BSC
0o
10o
b
18
A1
A
θ1
1.90 BSC
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Package Dimension
SOT-89
Side View
H
Top View
D
D1
SYMBOLS
A
E
A1
A1
e
Bottom View
INCHES
MIN
MAX
MIN
MAX
1.39
1.60
0.05472
0.06299
0.8 REF
0.03150 REF
C
0.35
0.44
0.01378
0.01732
10'
D
4.39
4.60
0.17283
0.18110
C
D1
1.35
1.83
0.05315
0.07205
E
2.28
2.60
0.08976
0.10236
I
0.36
0.56
0.01417
0.02204
3'
PIN 1
MILLIMETERS
Front View
D2
A
MATTE FINISH
E2
I
POLISH
e
3.00 REF
0.11811 REF
H
0.70 REF
0.02756 REF
S1
1.50 REF
0.05906 REF
E2
2.05
2.60
0.08071
0.10236
D2
1.50
1.85
0.05905
0.07283
S1
Rev.B.04
19
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Package Dimension
SOP-8
Side View
Top View
C
SYMBOLS
E
H
L
D
θ
Front View
MAX
MIN
MAX
A
1.35
1.75
0.05315
0.0689
A1
0.10
0.30
0.00394 0.01181
A
A2
A1
e
1.473 REF
0.33
0.51
0.01299 0.02008
C
0.19
0.25
0.00748 0.00984
D
4.80
5.33
0.18898 0.20984
E
3.80
4.00
0.14961 0.15748
1.27 BSC
0.05000 BSC
L
0.40
1.27
0.01575 0.05000
H
5.80
6.30
0.22835 0.24803
y
-
0.10
θ
B
0.05799 REF
B
e
7o(4X)
INCHES
MIN
A2
PIN 1
MILLIMETERS
0
o
8
o
0
0.00394
o
8
o
SOT-25
Top View
Side View
D
θ1
SYMBOLS
MILLIMETERS
MIN
1.20REF
E
H
A
PIN 1
L
S1
0.0000
0.0059
b
0.30
0.55
0.0118
0.0217
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
θ1
1.90 BSC
2.60
S1
0.07480 BSC
3.00
0.37BSC
0
o
10
0.95BSC
0.10236 0.11811
0.0146BSC
o
0o
10o
0.0374BSC
A1
A
20
0.0472REF
0.15
L
b
MAX
0.00
H
Front View
MIN
A1
e
e
MAX
INCHES
Rev.B.04
AME
Adjustable Precision
Shunt Regulator
AME431B-2.5V
n Package Dimension
TSOT-25
Top View
Side View
D
E
H
θ1
SYMBOLS
MILLIMETERS
MIN
MAX
MIN
MAX
A+A1
0.90
1.25
0.0354
0.0492
b
0.30
0.50
0.0118
0.0197
D
2.70
3.10
0.1063
0.1220
E
1.40
1.80
0.0551
0.0709
1.90 BSC
e
PIN 1
L
S1
H
2.40
θ1
S1
3.00
0
o
10
0.95BSC
0.09449 0.11811
0.0138BSC
o
0o
10o
0.0374BSC
b
Rev.B.04
A1
A
Front View
0.07480 BSC
0.35BSC
L
e
INCHES
21
www.ame.com.tw
E-Mail: [email protected]
Life Support Policy:
These products of AME, Inc. are not authorized for use as critical components in life-support
devices or systems, without the express written approval of the president
of AME, Inc.
AME, Inc. reserves the right to make changes in the circuitry and specifications of its devices and
advises its customers to obtain the latest version of relevant information.
 AME, Inc. , November 2008
Document: ORT-DS431B-B.04
Corporate Headquarter
AME, Inc.
2F, 302 Rui-Guang Road, Nei-Hu District
Taipei 114, Taiwan.
Tel: 886 2 2627-8687
Fax: 886 2 2659-2989
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