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General Description
The MAX6037 family of low-dropout, micropower volt-
age references offer fixed and adjustable output volt-
age options ranging from 1.184V to 5V. Connect an
external resistive-divider on the MAX6037_ADJ to
adjust the output voltage from 1.184V to 5V. The other
devices in the MAX6037 family feature fixed output volt-
ages of 1.25V, 2.048V, 2.5V, 3.0V, 3.3V, and 4.096V.
The MAX6037 offers shutdown functionality with an
active-low shutdown (500nA, max).
These series-mode voltage references operate from a
2.5V to 5.5V supply and consume 275μA (max) quies-
cent current. The output is stable driving loads from
0.02μF to 1μF and can source and sink 5mA of load
current. The MAX6037 offers a low temperature coeffi-
cient of 25ppm/°C and initial accuracy of ±0.2% (max).
The low dropout voltage (100mV, max at 1mA) and
supply-independent, low supply current make the
MAX6037 ideal for battery-powered applications.
The MAX6037 is available in the miniature 5-pin SOT23
package and is specified over the -40°C to +125°C
automotive temperature range.
Applications
Portable Equipment
Precision Regulators
Medical Equipment
Wireless LAN
Features
Adjustable V
OUT
: 1.184V to 5V
Fixed Outputs: 1.25V, 2.048V, 2.5V, 3.0V, 3.3V,
and 4.096V
Shutdown Current <500nA (max)
25ppm/°C (max) Temperature Coefficient (A Grade)
±0.2% (max) Initial Accuracy (A Grade)
Low 100mV (max) Dropout Voltage at 1mA Load
Current
2.5V to 5.5V Input Voltage Range
5mA Sink and Source Current Capability
Available in 5-Pin SOT23 Package
Operates Over the Automotive Temperature
Range: -40°C to +125°C
M
Low-Power, Fixed and Adjustable Reference
with Shutdown in SOT23
________________________________________________________________
Maxim Integrated Products
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.
1
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
MAX6037AAUK12-T
MAX6037BAUK12-T
MAX6037CAUK12-T
Ordering Information continued at end of data sheet.
Typical Operating Circuit
-40
°
C to +125
°
C
-40
°
C to +125
°
C
-40
°
C to +125
°
C
5 SOT23-5
5 SOT23-5
5 SOT23-5
AEIV
AEIW
AEIX
Ordering Information
PART
OUTPUT
VOLTAGE (V)
MAX
TEMPCO
(ppm/
°
C)
25
50
50
25
50
50
25
50
50
25
50
50
25
50
50
25
50
50
25
50
50
INITIAL
ACCURACY
(%, max)
0.2
0.3
0.5
0.2
0.3
0.5
0.2
0.3
0.5
0.2
0.3
0.5
0.2
0.3
0.5
0.2
0.3
0.5
0.2
0.3
0.5
MAX6037AAUK12
MAX6037BAUK12
MAX6037CAUK12
MAX6037AAUK21
MAX6037BAUK21
MAX6037CAUK21
MAX6037AAUK25
MAX6037BAUK25
MAX6037CAUK25
MAX6037AAUK30
MAX6037BAUK30
MAX6037CAUK30
MAX6037AAUK33
MAX6037BAUK33
MAX6037CAUK33
MAX6037AAUK41
MAX6037BAUK41
MAX6037CAUK41
M AX 6037AAU KAD J* 1.184 to 5, adj
M AX 6037BAU KAD J* 1.184 to 5, adj
M AX 6037C AU KAD J* 1.184 to 5, adj
1.25
1.25
1.25
2.048
2.048
2.048
2.5
2.5
2.5
3.0
3.0
3.0
3.3
3.3
3.3
4.096
4.096
4.096
Selector Guide
19-3192; Rev 0; 2/04
OUT
* OPTIONAL
*
IN
2.5V TO 5.5V INPUT
GND
SHDN
REFERENCE
OUTPUT
0.02
μ
F
TO 1
μ
F
MAX6037
Pin Configuration appears at end of data sheet.
*
The accuracy of the MAX6037_ADJ is dependent on the
accuracy of the external resistors. Use 1% resistors with low
temperature coefficient for best overall accuracy.