_______________General Description
The MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
low-dropout, micropower, three-terminal voltage refer-
ences offer 2.5V, 4.096V, 4.5V, 5.0V, and adjustable
(1.23V to 12.4V) output voltages, respectively. Low,
200mV dropout makes these devices ideal for 3V and
5V systems. Unlike two-terminal references that waste
battery current and require an external resistor, the
MAX61xx family's supply current is virtually independent
of input voltage variations, which translates to longer
battery life.
Initial accuracy for these devices is
1%. The output
temperature coefficient is typically 15ppm/C, and
guaranteed to be less than 50ppm/C (except
for the MAX6160). The MAX6125/MAX6141/MAX6145/
MAX6150 are available in 3-pin SOT23 and 8-pin SO
packages. The MAX6160 is available in 4-pin SOT143
and 8-pin SO packages.
____________________________Features
o
3-Pin SOT23 Package (MAX6125/41/45/50)
4-Pin SOT143 Package (MAX6160)
o
Low, 200mV Dropout Voltage
o
75A Supply Current, Independent of
Input Voltage
o
15ppm/C Typical Tempco (50ppm/C max)
o
Stable for All Capacitive Loads up to 10nF
o
Adjustable Output Voltage from
1.23V to (V
IN
- 0.2V) (MAX6160)
o
Optimized for 3V/5V Operation
________________________Applications
3V/5V Systems
Battery-Powered Systems
Portable and Hand-Held Equipment
Data-Acquisition Systems
Instrumentation and Process Control
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
________________________________________________________________
Maxim Integrated Products
1
1
2
8
7
IN
N.C.
N.C.
N.C. (ADJ)
OUT
N.C.
N.C.
GND
MAX6125
MAX6141
MAX6145
MAX6150
MAX6160
SO
TOP VIEW
3
4
6
5
( ) ARE FOR MAX6160 ONLY
1
2
3
GND
OUT
IN
MAX6125
MAX6141
MAX6145
MAX6150
SOT23-3
1
2
4
3
OUT
IN
ADJ
GND
MAX6160
SOT143
__________________________________________________________Pin Configurations
PART
MAX6125
ESA
MAX6125EUR
-40C to +85C
-40C to +85C
TEMP.
RANGE
PIN-
PACKAGE
8 SO
3 SOT23-3
______________Ordering Information
_____________________Selector Guide
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
SOT
TOP MARK
--
EBAA
PART
MAX6125
MAX6141
MAX6145
MAX6150
4.096
2.5
PRESET OUTPUT
VOLTAGE (V)
PACKAGE
3 SOT23/8 SO
3 SOT23/8 SO
5
4.5
3 SOT23/8 SO
3 SOT23/8 SO
MAX6160
Adjustable
(1.23 to 12.40)
4 SOT143/8 SO
19-1177; Rev. 0; 12/96
Ordering Information continued on last page.
Typical Operating Circuit appears on last page.
MAX6141
ESA
-40C to +85C
8 SO
--
MAX6141EUR
-40C to +85C
3 SOT23-3
ECAA
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS--MAX6125
(V
IN
= 2.7V, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.) (Note 1)
Stresses beyond 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 in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Voltage (with respect to GND)
IN .......................................................................-0.3V to +13.5V
OUT, ADJ...................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration (to IN or GND).............Continuous
Continuous Power Dissipation (T
A
= +70C)
8-Pin SO (derate 5.9mW/C above +70C)....................471mW
3-Pin SOT23 (derate 4mW/C above +70C).................320mW
4-Pin SOT143 (derate 4mW/C above +70C)...............320mW
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +160C
Lead Temperature (soldering, 10sec) .............................+300C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
T
A
= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
V
IN
= 2.7V to 12.6V, T
A
= T
MIN
to T
MAX
V
IN
= 2.7V to 12.6V
CONDITIONS
A/V
1.7
6
I
Q
/
V
IN
Change in Supply Current
vs. Change in Input Voltage
V
2.450
2.550
V
OUT
Output Voltage
2.475
2.500
2.525
V
2.7
12.6
V
IN
Supply Voltage
A
130
I
Q
Quiescent Supply Current
75
100
mV/mA
1.15
10
V
OUT
/
I
OUT
Load Regulation
0.4
1
ppm/C
15
50
TCV
OUT
Output Voltage
Temperature Coefficient
15
Vp-p
500
e
n
Output Voltage Noise
V/V
1
50
V
OUT
/
V
IN
Line Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
T
A
= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
V
IN
= 4.3V to 12.6V, T
A
= T
MIN
to T
MAX
V
IN
= 4.3V to 12.6V
CONDITIONS
A/V
1.7
6
I
Q
/
V
IN
Change in Supply Current
vs. Change in Input Voltage
V
4.015
4.180
V
OUT
Output Voltage
4.055
4.096
4.140
V
4.3
12.6
V
IN
Supply Voltage
A
130
I
Q
Quiescent Supply Current
78
105
mV/mA
1.65
16
V
OUT
/
I
OUT
Load Regulation
0.55
1.6
ppm/C
15
50
TCV
OUT
Output Voltage
Temperature Coefficient
25
Vp-p
700
e
n
Output Voltage Noise
V/V
2
50
V
OUT
/
V
IN
Line Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS--MAX6141
(V
IN
= 4.3V, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.) (Note 1)
_______________________________________________________________________________________
3
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
ELECTRICAL CHARACTERISTICS--MAX6145
(V
IN
= 4.7V, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.) (Note 1)
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
T
A
= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
V
IN
= 4.7V to 12.6V, T
A
= T
MIN
to T
MAX
V
IN
= 4.7V to 12.6V
CONDITIONS
A/V
1.7
6
I
Q
/
V
IN
Change in Supply Current
vs. Change in Input Voltage
V
4.410
4.590
V
OUT
Output Voltage
4.455
4.500
4.545
V
4.7
12.6
V
IN
Supply Voltage
A
130
I
Q
Quiescent Supply Current
79
105
mV/mA
1.75
18
V
OUT
/
I
OUT
Load Regulation
0.6
1.8
ppm/C
15
50
TCV
OUT
Output Voltage
Temperature Coefficient
30
Vp-p
800
e
n
Output Voltage Noise
V/V
2
50
V
OUT
/
V
IN
Line Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
T
A
= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
V
IN
= 5.2V to 12.6V, T
A
= T
MIN
to T
MAX
V
IN
= 5.2V to 12.6V
CONDITIONS
A/V
1.7
6
I
Q
/
V
IN
Change in Supply Current
vs. Change in Input Voltage
V
4.900
5.100
V
OUT
Output Voltage
4.950
5.000
5.050
V
5.2
12.6
V
IN
Supply Voltage
A
145
I
Q
Quiescent Supply Current
80
110
mV/mA
1.9
20
V
OUT
/
I
OUT
Load Regulation
0.65
2
ppm/C
15
50
TCV
OUT
Output Voltage
Temperature Coefficient
35
Vp-p
900
e
n
Output Voltage Noise
V/V
1
50
V
OUT
/
V
IN
Line Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
ELECTRICAL CHARACTERISTICS--MAX6150
(V
IN
= 5.2V, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.) (Note 1)
__________________________________________Typical Operating Characteristics
(V
IN
= V
IN(MIN)
, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.)
40
2
SUPPLY CURRENT
vs. INPUT VOLTAGE
MAX6125-TOC01
INPUT VOLTAGE ( V)
SUPPLY CURRENT (
A)
50
60
70
80
90
100
4
6
8
10
12
14
VALID OVER V
IN(MIN)
TO V
IN(MAX)
FOR EACH PART
110
-50
SUPPLY CURRENT
vs. TEMPERATURE
MAX6125-TOC02
TEMPERATURE (C)
SUPPLY CURRENT (
A)
10
20
30
40
50
70
60
80
90
100
-25
0
25
50
75
100
V
IN
= 10V
V
IN
= 3V
V
IN
= 5V
0
-50
LOAD REGULATION (SOURCING)
vs. TEMPERATURE
MAX6125-TOC03
TEMPERATURE (C)
LOAD REGULATION (mV/mA)
0.2
0.4
0.6
0.8
1.0
-25
0
25
50
75
100
V
OUT
= 5.0V (MAX6150)
V
OUT
= 4.096V (MAX6141)
V
OUT
= 2.5V (MAX6125/MAX6160)
V
OUT
= 4.5V (MAX6145)
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS--MAX6160
(V
IN
= 2.7V; I
OUT
= 0mA; R1 = 215k
0.1%, R2 = 208k
0.1% (circuit of Figure 1); T
A
= +25C; unless otherwise noted.) (Notes 1, 2)
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
0.1Hz to 10Hz
10Hz to 10kHz
V
IN
= 2.7V to 12.6V, T
A
= T
MIN
to T
MAX
V
IN
= 2.7V to 12.6V
CONDITIONS
A/V
1.7
6
I
Q
/
V
IN
Change in Supply Current
vs. Change in Input Voltage
V
2.450
2.550
V
OUT
Output Voltage
2.475
2.500
2.525
V
2.7
12.6
V
IN
Supply Voltage
A
130
I
Q
Quiescent Supply Current
75
100
mV/mA
1.15
10
V
OUT
/
I
OUT
Load Regulation
0.35
1
V
1.23
V
ADJ
ADJ Feedback Voltage Threshold
15
Vp-p
500
e
n
Output Voltage Noise
V/V
1
50
V
OUT
/
V
IN
Line Regulation
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
Note 1:
All devices are 100% production tested at T
A
= +25C, and are guaranteed by design for T
A
= T
MIN
to T
MAX
as specified.
Note 2:
R1 and R2 program the output voltage in the 1.23V to (V
IN
- 0.2V) range (see the section
Setting the MAX6160 Output Voltage).
T
A
= T
MIN
to T
MAX
V
1.23
V
IN
- 0.2
Output Voltage Range
T
A
= T
MIN
to T
MAX
ppm/C
15
100
TCV
OUT
Output Voltage
Temperature Coefficient
V
ADJ
= 1.23V
nA
70
I
ADJ
ADJ Input Current
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
________________________________________________________________________________________
5
0
-50
LOAD REGULATION (SINKING)
vs. TEMPERATURE
MAX6125-TOC04
TEMPERATURE (C)
LOAD REGULATION (mV/mA)
0.5
1.0
1.5
2.0
2.5
-25
0
25
50
75
100
V
OUT
= 5.0V (MAX6150)
V
OUT
= 4.096V (MAX6141)
V
OUT
= 2.5V (MAX6125/MAX6160)
V
OUT
= 4.5V (MAX6145)
2.496
0
MAX6125/MAX6160
OUTPUT VOLTAGE vs. SOURCE CURRENT
MAX6125-TOC05
SOURCE CURRENT (mA)
OUTPUT VOLTAGE
(V)
2.497
2.498
2.499
2.500
2.501
0.5
1.0
1.5
2.0
2.5
4.092
0
MAX6141
OUTPUT VOLTAGE vs. SOURCE CURRENT
MAX6125-TOC06
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
4.093
4.094
4.095
4.096
4.097
0.5
1.0
1.5
2.0
2.5
4.496
0
MAX6145
OUTPUT VOLTAGE vs. SOURCE CURRENT
MAX6125-TOC07
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
4.499
4.498
4.497
4.500
4.501
0.5
1.0
1.5
2.0
2.5
70
-50
MAX6125/MAX6160
DROPOUT VOLTAGE vs. TEMPERATURE
MAX6125-TOC10
TEMPERATURE (C)
DROPOUT VOLTAGE (mV)
100
90
80
110
I
OUT
= 1mA
120
-25
0
25
50
75
100
4.996
0
MAX6150
OUTPUT VOLTAGE vs. SOURCE CURRENT
MAX6125-TOC08
SOURCE CURRENT (mA)
OUTPUT VOLTAGE (V)
4.999
4.998
4.997
5.000
5.001
0.5
1.0
1.5
2.0
2.5
0
0.0
DROPOUT VOLTAGE
vs. SOURCE CURRENT
MAX6125-TOC09
SOURCE CURRENT (mA)
DROPOUT VOLTAGE (mV)
50
100
150
200
250
300
350
400
0.5
1.0
1.5
2.5
2.0
3.5
3.0
4.0
80
-50
MAX6141/MAX6145/MAX6150
DROPOUT VOLTAGE vs. TEMPERATURE
MAX6125-TOC11
TEMPERATURE (C)
DROPOUT VOLTAGE (mV)
84
88
92
96
100
-25
0
25
50
75
100
I
OUT
= 1mA
0
-50
MAX6160
ADJ INPUT CURRENT vs. TEMPERATURE
MAX6125-TOC12
TEMPERATURE (C)
ADJ INPUT CURRENT (nA)
20
40
60
80
100
120
-25
0
25
50
75
100
V
IN
= 2.7V
V
ADJ
= 1.23V
____________________________Typical Operating Characteristics (continued)
(V
IN
= V
IN(MIN)
, I
OUT
= 0mA, T
A
= +25C, unless otherwise noted.)
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