MAX6129 Maxim, MAX6129 Datasheet
MAX6129
Manufacturer Part Number
MAX6129
Description
Ultra-Low-Power Series Voltage Reference
Manufacturer
Maxim
Datasheet
1.MAX6129.pdf
(15 pages)
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The MAX6129 micropower, low-dropout bandgap volt-
age 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 compa-
rable devices in an SO package. This series-mode volt-
age 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.
An initial accuracy of 0.4% and a 40ppm/°C (max) tem-
perature coefficient make the MAX6129 suitable for
precision applications. Additionally, an internal com-
pensation capacitor eliminates the need for an external
compensation capacitor and ensures stability with load
capacitances up to 10µF.
The MAX6129 provides six output voltages of 2.048V,
2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6129 is avail-
able in a 5-pin SOT23 package and is specified over
the extended temperature range (-40°C to +85°C).
19-2507; Rev 0; 7/02
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.
Battery-Powered Systems
Hand-Held Instruments
Precision Power Supplies
A/D and D/A Converters
Ultra-Low-Power Series Voltage Reference
Typical Operating Circuit
________________________________________________________________ Maxim Integrated Products
*CAPACITOR IS OPTIONAL
V
IN
General Description
= 2.5V TO 12.6V
MAX6129
GND
IN
OUT
*
Applications
o Ultra-Low 5.25µA (max) Supply Current
o 4mA Output Source Current
o 1mA Output Sink Current
o ±0.4% (max) Initial Accuracy
o 40ppm/°C (max) Temperature Coefficient
o 2.5V to 12.6V Supply Range
o Low 200mV Dropout
o Stable with Capacitive Loads Up to 10µF
o No External Capacitors Required
o Miniature 5-Pin SOT23 Package
Note: The MAX6129 is available in A or B grades. Choose the
desired grade from the Selector Guide and insert the suffix in
the blank above to complete the part number.
Selector Guide appears at end of data sheet.
MAX6129_EUK21-T -40°C to +85°C 5 SOT23-5
MAX6129_EUK25-T -40°C to +85°C 5 SOT23-5
MAX6129_EUK30-T -40°C to +85°C 5 SOT23-5
MAX6129_EUK33-T -40°C to +85°C 5 SOT23-5
MAX6129_EUK41-T -40°C to +85°C 5 SOT23-5
MAX6129_EUK50-T -40°C to +85°C 5 SOT23-5
PART
TOP VIEW
GND
N.C.
IN
TEMP RANGE
1
2
3
Ordering Information
MAX6129
SOT23
Pin Configuration
PIN-
PACKAGE
5
4
OUT
N.C.
Features
VOLTAGE
OUTPUT
2.048
2.500
3.000
3.300
4.096
5.000
(V)
1
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