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General Description
The MAX6029 micropower, low-dropout bandgap volt-
age reference combines ultra-low supply current and
low drift in a miniature 5-pin SOT23 surface-mount pack-
age that uses 70% less board space than comparable
devices in an SO package. An initial accuracy of 0.15%
and a 30ppm/C (max) temperature coefficient make the
MAX6029 suitable for precision applications. This
series-mode voltage reference sources up to 4mA and
sinks up to 1mA of load current. A wide 2.5V to 12.6V
supply range, ultra-low 5.25A (max) supply current,
and a low 200mV dropout voltage make these devices
ideal for battery-operated systems. Additionally, an
internal compensation capacitor eliminates the need for
an external compensation capacitor and ensures stabili-
ty with load capacitances up to 10F.
The MAX6029 provides six output voltages of 2.048V,
2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6029 is avail-
able in a 5-pin SOT23 package and is specified over
the extended temperature range (-40C to +85C).
Applications
Battery-Powered Systems
Hand-Held Instruments
Precision Power Supplies
A/D and D/A Converters
Features
o Ultra-Low 5.25A (max) Supply Current
o 0.15% (max) Initial Accuracy
o 30ppm/C (max) Temperature Coefficient
o 4mA Output Source Current
o 1mA Output Sink Current
o 2.5V to 12.6V Supply Range
o Low 200mV Dropout
o Stable with Capacitive Loads Up to 10F
o No External Capacitors Required
o Miniature 5-Pin SOT23 Package
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
________________________________________________________________ Maxim Integrated Products
1
GND
N.C.
N.C.
1
5
OUT
IN
MAX6029
SOT23
TOP VIEW
2
3
4
Pin Configuration
Ordering Information
19-2892; Rev 0; 7/03
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX6029EUK21-T
-40
C to +85C 5 SOT23-5
AEHD
MAX6029EUK25-T
-40
C to +85C 5 SOT23-5
AEHF
MAX6029EUK30-T
-40
C to +85C 5 SOT23-5
AEHH
MAX6029EUK33-T
-40
C to +85C 5 SOT23-5
AEHN
MAX6029EUK41-T
-40
C to +85C 5 SOT23-5
AEHJ
MAX6029EUK50-T
-40
C to +85C 5 SOT23-5
AEHL
Selector Guide
PART
PIN-PACKAGE
OUTPUT
VOLTAGE (V)
MAX6029EUK21-T
5 SOT23-5
2.048
MAX6029EUK25-T
5 SOT23-5
2.500
MAX6029EUK30-T
5 SOT23-5
3.000
MAX6029EUK33-T
5 SOT23-5
3.300
MAX6029EUK41-T
5 SOT23-5
4.096
MAX6029EUK50-T
5 SOT23-5
5.000
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
IN to GND ...............................................................-0.3V to +13V
OUT to GND ..............-0.3V to the lower of +6V and (V
IN
+ 0.3V)
Output to GND Short-Circuit Duration........................Continuous
Continuous Power Dissipation (T
A
= +70C)
5-Pin SOT23 (derate 7.1mW/C above +70C)............571mW
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10s) .................................+300C
ELECTRICAL CHARACTERISTICS--MAX6029_21 (V
OUT
= 2.048V)
(V
IN
= 2.5V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage
V
OUT
T
A
= +25
C
2.0449
2.0480
2.0511
V
Output Voltage Temperature
Coefficient
TCV
OUT
(Notes 2, 3)
30
ppm/
C
Line Regulation
V
OUT
/
V
IN
V
IN
= 2.5V to 12.6V
27
200
V/V
I
OUT
= 0 to 4mA
0.22
0.7
Load Regulation
V
OUT
/
I
OUT
I
OUT
= 0 to -1mA
2.4
5.5
V/A
Output Short-Circuit Current
I
SC
60
mA
Long-Term Stability
V
OUT
/time
1000 hours at +25
C
150
ppm
Thermal Hysteresis
(Note 4)
140
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz
30
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
115
V
RMS
Ripple Rejection
V
OUT
/
V
IN
V
IN
= 2.5V
200mV, f = 120Hz
43
dB
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value
450
s
INPUT
Supply Voltage Range
V
IN
2.5
12.6
V
Supply Current
I
IN
5.25
A
Change in Supply Current
I
IN
/V
IN
V
IN
= 2.5V to 12.6V
1.5
A/V
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS--MAX6029_25 (V
OUT
= 2.500V)
(V
IN
= 2.7V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage
V
OUT
T
A
= +25
C
2.4963
2.5000
2.5038
V
Output Voltage Temperature
Coefficient
TCV
OUT
(Notes 2, 3)
30
ppm/
C
Line Regulation
V
OUT
/
V
IN
V
IN
= 2.7V to 12.6V
30
230
V/V
I
OUT
= 0 to 4mA
0.1
0.6
Load Regulation
V
OUT
/
I
OUT
I
OUT
= 0 to -1mA
2.5
6.2
V/A
I
OUT
= 0
100
Dropout Voltage (Note 5)
V
IN
- V
OUT
I
OUT
= 4mA
200
mV
Output Short-Circuit Current
I
SC
60
mA
Long-Term Stability
V
OUT
/time
1000 hours at +25
C
150
ppm
Thermal Hysteresis
(Note 4)
140
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz
39
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
137
V
RMS
Ripple Rejection
V
OUT
/
V
IN
V
IN
= 2.7V
200mV, f = 120Hz
34
dB
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value
700
ms
INPUT
Supply Voltage Range
V
IN
2.7
12.6
V
Supply Current
I
IN
5.75
A
Change in Supply Current
I
IN
/V
IN
V
IN
= 2.7V to 12.6V
1.5
A/V
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS--MAX6029_30 (V
OUT
= 3.000V)
(V
IN
= 3.2V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage
V
OUT
T
A
= +25
C
2.9955
3.0000
3.0045
V
Output Voltage Temperature
Coefficient
TCV
OUT
(Notes 2, 3)
30
ppm/
C
Line Regulation
V
OUT
/
V
IN
V
IN
= 3.2V to 12.6V
15
250
V/V
I
OUT
= 0 to 4mA
0.1
0.6
Load Regulation
V
OUT
/
I
OUT
I
OUT
= 0 to -1mA
2.4
6.5
V/A
I
OUT
= 0
100
Dropout Voltage (Note 5)
V
IN
- V
OUT
I
OUT
= 4mA
200
mV
Output Short-Circuit Current
I
SC
60
mA
Long-Term Stability
V
OUT
/time
1000 hours at +25
C
150
ppm
Thermal Hysteresis
(Note 4)
140
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz
39
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
161
V
RMS
Ripple Rejection
V
OUT
/
V
IN
V
IN
= 3.2V
200mV, f = 120Hz
37
dB
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value
775
s
INPUT
Supply Voltage Range
V
IN
3.2
12.6
V
Supply Current
I
IN
6.75
A
Change in Supply Current
I
IN
/V
IN
V
IN
= 3.2V to 12.6V
1.5
A/V
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS--MAX6029_33 (V
OUT
= 3.300V)
(V
IN
= 3.5V, I
OUT
= 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage
V
OUT
T
A
= +25
C
3.2951
3.3000
3.3050
V
Output Voltage Temperature
Coefficient
TCV
OUT
(Notes 2, 3)
30
ppm/
C
Line Regulation
V
OUT
/
V
IN
V
IN
= 3.5V to 12.6V
30
270
V/V
I
OUT
= 0 to 4mA
0.1
0.6
Load Regulation
V
OUT
/
I
OUT
I
OUT
= 0 to -1mA
2.4
7
V/A
I
OUT
= 0
100
Dropout Voltage (Note 5)
V
IN
- V
OUT
I
OUT
= 4mA
200
mV
Output Short-Circuit Current
I
SC
60
mA
Long-Term Stability
V
OUT
/time
1000 hours at +25
C
150
ppm
Thermal Hysteresis
(Note 4)
140
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz
56
V
P-P
Noise Voltage
e
OUT
f = 10Hz to 1kHz
174
V
RMS
Ripple Rejection
V
OUT
/
V
IN
V
IN
= 3.5V
200mV, f = 120Hz
38
dB
Turn-On Settling Time
t
R
To V
OUT
= 0.1% of final value
1
ms
INPUT
Supply Voltage Range
V
IN
3.5
12.6
V
Supply Current
I
IN
7.25
A
Change in Supply Current
I
IN
/V
IN
V
IN
= 3.5V to 12.6V
1.5
A/V
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