MAX6037 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Low-Power, Fixed and Adjustable Reference with Shutdown in SOT23

19-3192; Rev 0; 2/04
Low-Power, Fixed and Adjustable Reference
with Shutdown in SOT23
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.
Medical Equipment
Wireless LAN
Applications
Portable Equipment
Precision Regulators
Ordering Information
PART
TEMP RANGE
PIN-
TOP
PACKAGE MARK
MAX6037AAUK12-T -40°C to +125°C 5 SOT23-5 AEIV
MAX6037BAUK12-T -40°C to +125°C 5 SOT23-5 AEIW
MAX6037CAUK12-T -40°C to +125°C 5 SOT23-5 AEIX
Ordering Information continued at end of data sheet.
Typical Operating Circuit
2.5V TO 5.5V INPUT
*
* OPTIONAL
IN _OUT
MAX6037
SHDN
GND
REFERENCE
OUTPUT
0.02µF
TO 1µF
Pin Configuration appears at end of data sheet.
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
Selector Guide
PART
OUTPUT
VOLTAGE (V)
MAX
TEMPCO
(ppm/°C)
INITIAL
ACCURACY
(%, max)
MAX6037AAUK12
1.25
25
0.2
MAX6037BAUK12
1.25
50
0.3
MAX6037CAUK12
1.25
50
0.5
MAX6037AAUK21
2.048
25
0.2
MAX6037BAUK21
2.048
50
0.3
MAX6037CAUK21
2.048
50
0.5
MAX6037AAUK25
2.5
25
0.2
MAX6037BAUK25
2.5
50
0.3
MAX6037CAUK25
2.5
50
0.5
MAX6037AAUK30
3.0
25
0.2
MAX6037BAUK30
3.0
50
0.3
MAX6037CAUK30
3.0
50
0.5
MAX6037AAUK33
3.3
25
0.2
MAX6037BAUK33
3.3
50
0.3
MAX6037CAUK33
3.3
50
0.5
MAX6037AAUK41
4.096
25
0.2
MAX6037BAUK41
4.096
50
0.3
MAX6037CAUK41
4.096
50
0.5
MAX6037AAUKADJ* 1.184 to 5, adj 25
0.2
MAX6037BAUKADJ* 1.184 to 5, adj 50
0.3
MAX6037CAUKADJ* 1.184 to 5, adj 50
0.5
*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.
________________________________________________________________ Maxim Integrated Products 1
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