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MAX6029
User Manual
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MAXIM MAX6029 User Manual

General Description
The MAX6029 micropower, low-dropout bandgap volt­age reference combines ultra-low supply current and low drift in a miniature 5-pin SOT23 surface-mount pack­age 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 5.25µA (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 stabili­ty with load capacitances up to 10µF.
The MAX6029 provides six output voltages of 2.048V,
2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6029 is avail­able in a 5-pin SOT23 or an 8-pin SO package and is specified over the extended temperature range (-40°C to +85°C).
Applications
Battery-Powered Systems
Hand-Held Instruments
Precision Power Supplies
A/D and D/A Converters
Features
♦ Ultra-Low 5.25µA (max) Supply Current
♦ ±0.15% (max) Initial Accuracy
♦ 30ppm/°C (max) Temperature Coefficient
♦ 4mA Output Source Current
♦ 1mA Output Sink Current
♦ 2.5V to 12.6V Supply Range
♦ Low 200mV Dropout
♦ Stable with Capacitive Loads Up to 10µF
♦ No External Capacitors Required
♦ Miniature 5-Pin SOT23 Package, 8-Pin SO Package
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
________________________________________________________________ Maxim Integrated Products 1
GND
N.C.N.C.
15OUTIN
MAX6029
SOT23
TOP VIEW
2
34
OUT
N.C.GND
1
2
87N.C.
N.C.IN
N.C.
N.C.
SO
3
4
6
5
MAX6029
Pin Configurations
Ordering Information
19-2892; Rev 2; 11/06
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
PIN-PACKAGE
TOP
MARK
PKG
CODE
MAX6029EUK21-T
5 SOT23-5 AEHD U5-1
MAX6029EUK25-T
5 SOT23-5 AEHF U5-1
MAX6029ESA25 8 SO — S8-2
MAX6029EUK30-T
5 SOT23-5 AEHH U5-1
MAX6029EUK33-T
5 SOT23-5 AEHN U5-1
MAX6029EUK41-T
5 SOT23-5 AEHJ U5-1
MAX6029ESA41 8 SO — S8-2
MAX6029EUK50-T
5 SOT23-5 AEHL U5-1
Selector Guide
PART PIN-PACKAGE
OUTPUT
VOLTAGE (V)
MAX6029EUK21-T 5 SOT23-5 2.048
MAX6029EUK25-T 5 SOT23-5 2.500
MAX6029ESA25 8 SO 2.500
MAX6029EUK30-T 5 SOT23-5 3.000
MAX6029EUK33-T 5 SOT23-5 3.300
MAX6029EUK41-T 5 SOT23-5 4.096
MAX6029ESA41 8 SO 4.096
MAX6029EUK50-T 5 SOT23-5 5.000
Note: All devices are specified over the -40°C to +85°C oper­ating temperature range.
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
= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C)............571mW
8-Pin SO (derate 5.9mW/°C above +70°C)...............470.6mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
ELECTRICAL CHARACTERISTICS—MAX6029_21 (V
OUT
= 2.048V)
(VIN= 2.5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER
CONDITIONS
UNITS
OUTPUT
Output Voltage V
OUT
TA = +25°C
V
Output Voltage Temperature Coefficient
TCV
OUT
(Notes 2, 3) 30
ppm/°C
Line Regulation
VIN = 2.5V to 12.6V 27 200
µV/V
I
OUT
= 0 to 4mA
0.7
Load Regulation
∆V
OUT
/
∆I
OUT I
OUT
= 0 to -1mA 2.4 5.5
µV/µA
Output Short-Circuit Current I
SC
60 mA
Long-Term Stability
1000 hours at +25°C
ppm
Thermal Hysteresis (Note 4)
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 30
µV
P-P
Noise Voltage e
OUT
f = 10Hz to 1kHz
µV
RMS
Ripple Rejection
VIN = 2.5V ±200mV, f = 120Hz 43 dB
Turn-On Settling Time t
R
To V
OUT
= 0.1% of final value
µs
INPUT
Supply Voltage Range V
IN
2.5
V
Supply Current I
IN
µA
Change in Supply Current IIN/V
IN
VIN = 2.5V to 12.6V 1.5
µA/V
SYMBOL
∆V
/∆V
OUT
IN
∆V
/time
OUT
∆V
/∆V
OUT
IN
MIN TYP MAX
2.0449 2.0480 2.0511
0.22
150
140
115
450
12.6
5.25
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—MAX6029_25 (V
OUT
= 2.500V)
(VIN= 2.7V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6029EUK
Output Voltage V
OUT
TA = +25°C
MAX6029ESA
V
Output Voltage Temperature Coefficient
TCV
OUT
(Notes 2, 3) 30
ppm/°C
Line Regulation
VIN = 2.7V to 12.6V 30 230
µV/V
I
OUT
= 0 to 4mA 0.1 0.6
Load Regulation
I
OUT
= 0 to -1mA 2.5 6.2
µV/µA
I
OUT
= 0 100
Dropout Voltage (Note 5)
I
OUT
= 4mA 200
mV
Output Short-Circuit Current I
SC
60 mA
Long-Term Stability
1000 hours at +25°C
ppm
Thermal Hysteresis (Note 4)
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 39
µV
P-P
Noise Voltage e
OUT
f = 10Hz to 1kHz
µV
RMS
Ripple Rejection
VIN = 2.7V ±200mV, f = 120Hz 34 dB
Turn-On Settling Time t
R
To V
OUT
= 0.1% of final value
ms
INPUT
Supply Voltage Range V
IN
2.7
V
Supply Current I
IN
µA
Change in Supply Current IIN/V
IN
VIN = 2.7V to 12.6V 1.5
µA/V
∆V
/∆V
OUT
IN
∆V
/∆I
OUT
OUT
VIN - V
OUT
∆V
/time
OUT
∆V
/∆V
OUT
IN
2.4963 2.5000 2.5038
2.495 2.500 2.505
150
140
137
700
12.6
5.75
MAX6029
Ultra-Low-Power Precision Series Voltage Reference
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—MAX6029_30 (V
OUT
= 3.000V)
(VIN= 3.2V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER
CONDITIONS
UNITS
OUTPUT
Output Voltage V
OUT
TA = +25°C
V
Output Voltage Temperature Coefficient
TCV
OUT
(Notes 2, 3) 30
ppm/°C
Line Regulation
VIN = 3.2V to 12.6V 15 250
µV/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
µV/µA
I
OUT
= 0 100
Dropout Voltage (Note 5)
I
OUT
= 4mA 200
mV
Output Short-Circuit Current I
SC
60 mA
Long-Term Stability
1000 hours at +25°C
ppm
Thermal Hysteresis (Note 4)
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 39
µV
P-P
Noise Voltage e
OUT
f = 10Hz to 1kHz
µV
RMS
Ripple Rejection
VIN = 3.2V ±200mV, f = 120Hz 37 dB
Turn-On Settling Time t
R
To V
OUT
= 0.1% of final value
µs
INPUT
Supply Voltage Range V
IN
3.2
V
Supply Current I
IN
µA
Change in Supply Current IIN/V
IN
VIN = 3.2V to 12.6V 1.5
µA/V
SYMBOL
∆V
/∆V
OUT
IN
VIN - V
OUT
∆V
/time
OUT
∆V
/∆V
OUT
IN
MIN TYP MAX
2.9955 3.0000 3.0045
150
140
161
775
12.6
6.75
MAX6029
Ultra-Low-Power Precision Series
Voltage Reference
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS—MAX6029_33 (V
OUT
= 3.300V)
(VIN= 3.5V, I
OUT
= 0, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
Output Voltage V
OUT
TA = +25°C
V
Output Voltage Temperature Coefficient
TCV
OUT
(Notes 2, 3) 30
ppm/°C
Line Regulation
VIN = 3.5V to 12.6V 30
µV/V
I
OUT
= 0 to 4mA 0.1 0.6
Load Regulation
I
OUT
= 0 to -1mA 2.4 7
µV/µA
I
OUT
= 0
Dropout Voltage (Note 5)
I
OUT
= 4mA
mV
Output Short-Circuit Current I
SC
60 mA
Long-Term Stability
1000 hours at +25°C
ppm
Thermal Hysteresis (Note 4)
ppm
DYNAMIC CHARACTERISTICS
f = 0.1Hz to 10Hz 56
µV
P-P
Noise Voltage e
OUT
f = 10Hz to 1kHz
µV
RMS
Ripple Rejection
VIN = 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
V
Supply Current I
IN
µA
Change in Supply Current IIN/V
IN
VIN = 3.5V to 12.6V 1.5
µA/V
∆V
/∆V
OUT
IN
∆V
/∆I
OUT
OUT
VIN - V
OUT
∆V
/time
OUT
∆V
/∆V
OUT
IN
3.2951 3.3000 3.3050
270
100
200
150
140
174
12.6
7.25
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