AME, Inc.
1
AME385-2.5
Micropower Voltage Reference Diode
n
Typical Application
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Functional Block Diagram
l
Small packages: SOT-23, TO-92, SO-8
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Tolerates capacitive loads
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Fixed reverse breakdown voltage of 2.5V
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Tight voltage tolerance -------
0.20%,
0.5%
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Wide operating current ------- 20
A to 20mA
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Wide temperature range ----- -40
o
C to +85
o
C
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Low temperature coefficient --100ppm/
o
C
(max)
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Excellent transient response
The AME385-2.5 is a micropower 2-terminal band-gap
voltage regulator diode. It operates over a 20
A to 20mA
current range. Each circuit is trimmed at wafer sort to
provide a 0.20% and 0.50% initial tolerance. The de-
sign of the AME385-2.5 allows for a large range of load
capacitances and operating currents. The low start-up
current makes these part ideal for battery applications.
Analog Microelectronics offers this part in a TO-92 and
SO-8 package as well as the space saving SOT-23.
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Portable electronics
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Power supplies
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Computer peripherals
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Data acquisition systems
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Battery chargers
l
Consumer electronics
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General Description
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Features
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Applications
GND
VR
Bandgap
Cell
Current
Shunt
VS
0.1
F
Value optional
I
RS =
VR = 2.5V
VR
VS - VR
RS
AME, Inc.
2
Micropower Voltage Reference Diode
AME385-2.5
n
Pin Configuration
AME 385-2.5
1. NC
2. NC
3. NC
4. -
5. NC
6. NC
7. NC
8. +
SO-8
Top View
SOT-23
Top View
TO-92-3
Bottom View
TO-92-2
Bottom View
* The NC pin must float or be connected to - (negative)
AME 385-2.5
1. +
2. -
3. NC*
1
3
2
4
5
6
7
8
1
2
3
1
2
3
AME 385-2.5
1. +
2. -
AME 385-2.5
1. NC*
2. +
3. -
1
2
AME, Inc.
3
AME385-2.5
Micropower Voltage Reference Diode
n
Ordering Information
Operating Temperature Range
Number of Pins
Package Type
Accuracy
Special Feature
AME385 x x x
x
x
D: 0.2%
E: -40
O
C to 85
O
C
A: TO-92
A: 8
L: Low Profile
B: 0.5%
E: SOT-2X
S: 2
Y: Lead Free & Low Profile
H: SO-8
T: 3
Z: Lead Free
Special Feature
Accuracy
Operating
Temperature Range
Package Type
Number of
Pins
AME, Inc.
4
Micropower Voltage Reference Diode
AME385-2.5
n
Ordering Information (contd.)
Note: yyww & ww represents the date code
* A line on top of the first letter represents lead free plating such as ACS.
Please consult AME sales office or authorized Rep./Distributor for the availability of voltage accuracy and package type.
Part Number
Marking
Accuracy
P a c k a g e
Operating Temp. Range
A M E 3 8 5 D E E T
A C S w w
0.2%
SOT-23
- 40
o
C to + 85
o
C
AME385DEETL
A C S w w
0.2%
TSOT-23
- 40
o
C to + 85
o
C
AME385DEETY
A C S w w
0.2%
TSOT-23
- 40
o
C to + 85
o
C
AME385DEETZ
A C S w w
0.2%
SOT-23
- 40
o
C to + 85
o
C
AME385DEHA
385
D E H A
yyww
0.2%
SO-8
- 40
o
C to + 85
o
C
A M E 3 8 5 D E H A Z
385
D E H A
yyww
0.2%
SO-8
- 40
o
C to + 85
o
C
A M E 3 8 5 B E E T
A B Y w w
0.5%
SOT-23
- 40
o
C to + 85
o
C
AME385BEETL
A B Y w w
0.5%
TSOT-23
- 40
o
C to + 85
o
C
AME385BEETY
A B Y w w
0.5%
TSOT-23
- 40
o
C to + 85
o
C
AME385BEETZ
A B Y w w
0.5%
SOT-23
- 40
o
C to + 85
o
C
A M E 3 8 5 B E A T
A M E
385
B E A T
yyww
0.5%
TO-92-3
- 40
o
C to + 85
o
C
AME385BEATZ
A M E
385
B E A T
yyww
0.5%
TO-92-3
- 40
o
C to + 85
o
C
A M E 3 8 5 B E A S
A M E
385
B E A S
yyww
0.5%
TO-92-2
- 40
o
C to + 85
o
C
A M E 3 8 5 B E A S Z
A M E
385
B E A S
yyww
0.5%
TO-92-2
- 40
o
C to + 85
o
C
A M E 3 8 5 B E H A
385
B E H A
yyww
0.5%
SO-8
- 40
o
C to + 85
o
C
A M E 3 8 5 B E H A Z
385
B E H A
yyww
0.5%
SO-8
- 40
o
C to + 85
o
C
Part Number
Package
Lead Pitch
AME385XEAX
TO-92 Taping
5.04mm
AME385XEAX-1
TO-92 Bulk
2.54mm
* Package Option
AME, Inc.
5
AME385-2.5
Micropower Voltage Reference Diode
Maximum
Unit
SOT-23
325
TO-92
180
SO-8
125
Maximum Junction Temperature
150
o
C
Maximum Lead Temperature (10 Sec)
300
o
C
Thermal Resistance
o
C / W
Parameter
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Absolute Maximum Ratings
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Recommended Operating Conditions
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Thermal Information
Parameter
Maximum
Unit
Supply Current
50
mA
Parameter
Rating
Unit
Supply Current
100
A ~ 20mA
Ambient Temperature Range
- 40 to + 85
o
C
Junction Temperature
- 40 to + 125
o
C
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device
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