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MAX6145
Technical data
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MAXIM MAX6125, MAX6141, MAX6145, MAX6150, MAX6160 Technical data

General Description
The MAX6125/MAX6141/MAX6145/MAX6150/MAX6160 low-dropout, micropower, three-terminal voltage refer­ences offer 2.5V, 4.096V, 4.5V, 5.0V, and adjustable (1.23V to 12.4V) output voltages, respectively. Low, 200mV dropout makes these devices ideal for 3V and 5V systems. Unlike two-terminal references that waste battery current and require an external resistor, the MAX61xx family’s supply current is virtually independent of input voltage variations, which translates to longer battery life.
Initial accuracy for these devices is ±1%. The output temperature coefficient is typically 15ppm/°C, and guaranteed to be less than 50ppm/°C (except for the MAX6160). The MAX6125/MAX6141/MAX6145/ MAX6150 are available in 3-pin SOT23 and 8-pin SO packages. The MAX6160 is available in 4-pin SOT143 and 8-pin SO packages.
Features
♦ 3-Pin SOT23 Package
(MAX6125/MAX6141/MAX6145/MAX6150) 4-Pin SOT143 Package (MAX6160)
♦ Low, 200mV Dropout Voltage ♦ 75µA Supply Current, Independent of
Input Voltage
♦ 15ppm/°C Typical Tempco (50ppm/°C, max) ♦ Stable for All Capacitive Loads up to 10nF ♦ Adjustable Output Voltage from
1.23V to (VIN- 0.2V) (MAX6160)
♦ Optimized for 3V/5V Operation
Applications
3V/5V Systems
Battery-Powered Systems
Portable and Hand-Held Equipment
Data-Acquisition Systems
Instrumentation and Process Control
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
________________________________________________________________ Maxim Integrated Products 1
Pin Configurations
PART
MAX6125ESA
MAX6125EUR-T -40°C to +85°C
-40°C to +85°C
TEMP
RANGE
PIN­PACKAGE
8 SO
3 SOT23-3
Ordering Information
Selector Guide
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.
TOP
MARK
—
EBAA
PART
MAX6125
MAX6141
MAX6145
MAX6150
4.096
2.5
PRESET OUTPUT
VOLTAGE (V)
PIN­PACKAGE
3 SOT23/8 SO
3 SOT23/8 SO
5
4.5 3 SOT23/8 SO
3 SOT23/8 SO
MAX6160
Adjustable
(1.23 to 12.40)
4 SOT143/8 SO
19-1177; Rev. 1; 10/02
Ordering Information continued on last page.
Typical Operating Circuit appears on last page.
MAX6141ESA
-40°C to +85°C 8 SO —
MAX6141EUR-T -40°C to +85°C 3 SOT23-3 ECAA
TOP VIEW
1
OUT
MAX6125
2
N.C.
N.C.
GND
( ) ARE FOR MAX6160 ONLY
MAX6141 MAX6145
3
MAX6150 MAX6160
4
SO
8
7
6
5
IN
N.C.
N.C.
N.C. (ADJ)
OUT
IN
1
MAX6125 MAX6141 MAX6145 MAX6150
2
SOT23-3
4
GND
1
MAX6160
GND
3
2
ADJ
SOT143-4
OUT
3
IN
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout, 3-Terminal Voltage References
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—MAX6125
(VIN= 2.7V, I
OUT
= 0mA, TA= +25°C, unless otherwise noted.) (Note 1)
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.
(Voltages With Respect to GND)
IN.......................................................................-0.3V to +13.5V
OUT, ADJ...................................................-0.3V to (V
IN
+ 0.3V)
Output Short-Circuit Duration (to IN or GND).............Continuous
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.9mW/°C above +70°C)....................471mW
3-Pin SOT23 (derate 4mW/°C above +70°C).................320mW
4-Pin SOT143 (derate 4mW/°C above +70°C)...............320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
T
A
= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= +25°C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
TA= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
VIN= 2.7V to 12.6V, TA= T
MIN
to T
MAX
VIN= 2.7V to 12.6V
CONDITIONS
µA/V1.7 6∆IQ/∆V
IN
Change in Supply Current vs. Change in Input Voltage
V
2.450 2.550
V
OUT
Output Voltage
2.475 2.500 2.525
V2.7 12.6V
IN
Supply Voltage
µA
130
I
Q
Quiescent Supply Current
75 100
mV/mA
1.15 10
∆V
OUT
/∆I
OUT
Load Regulation
0.4 1
ppm/°C15 50TCV
OUT
Output Voltage Temperature Coefficient
15
µV
P-P
500
e
n
Output Voltage Noise
µV/V150∆V
OUT
/∆V
IN
Line Regulation
UNITSMIN TYP MAXSYMBOLPARAMETER
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= +25°C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
TA= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
VIN= 4.3V to 12.6V, TA= T
MIN
to T
MAX
VIN= 4.3V to 12.6V
CONDITIONS
µA/V1.7 6∆IQ/∆V
IN
Change in Supply Current vs. Change in Input Voltage
V
4.015 4.180
V
OUT
Output Voltage
4.055 4.096 4.140
V4.3 12.6V
IN
Supply Voltage
µA
130
I
Q
Quiescent Supply Current
78 105
mV/mA
1.65 16
∆V
OUT
/∆I
OUT
Load Regulation
0.55 1.6
ppm/°C15 50TCV
OUT
Output Voltage Temperature Coefficient
25
µV
P-P
700
e
n
Output Voltage Noise
µV/V250∆V
OUT
/∆V
IN
Line Regulation
UNITSMIN TYP MAXSYMBOLPARAMETER
ELECTRICAL CHARACTERISTICS—MAX6141
(VIN= 4.3V, I
OUT
= 0mA, TA= +25°C, unless otherwise noted.) (Note 1)
_______________________________________________________________________________________ 3
MAX6125/MAX6141/MAX6145/MAX6150/MAX6160
SOT23, Low-Cost, Low-Dropout,
3-Terminal Voltage References
ELECTRICAL CHARACTERISTICS—MAX6145
(VIN= 4.7V, I
OUT
= 0mA, TA= +25°C, unless otherwise noted.) (Note 1)
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= +25°C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
TA= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
VIN= 4.7V to 12.6V, TA= T
MIN
to T
MAX
VIN= 4.7V to 12.6V
CONDITIONS
µA/V1.7 6∆IQ/∆V
IN
Change in Supply Current vs. Change in Input Voltage
V
4.410 4.590
V
OUT
Output Voltage
4.455 4.500 4.545
V4.7 12.6V
IN
Supply Voltage
µA
130
I
Q
Quiescent Supply Current
79 105
mV/mA
1.75 18
∆V
OUT
/∆I
OUT
Load Regulation
0.6 1.8
ppm/°C15 50TCV
OUT
Output Voltage Temperature Coefficient
30
µV
P-P
800
e
n
Output Voltage Noise
µV/V250∆V
OUT
/∆V
IN
Line Regulation
UNITSMIN TYP MAXSYMBOLPARAMETER
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= +25°C
I
SINK
= 0mA to 1mA
I
SOURCE
= 0mA to 1mA
TA= T
MIN
to T
MAX
0.1Hz to 10Hz
10Hz to 10kHz
VIN= 5.2V to 12.6V, TA= T
MIN
to T
MAX
VIN= 5.2V to 12.6V
CONDITIONS
µA/V1.7 6∆IQ/∆V
IN
Change in Supply Current vs. Change in Input Voltage
V
4.900 5.100
V
OUT
Output Voltage
4.950 5.000 5.050
V5.2 12.6V
IN
Supply Voltage
µA
145
I
Q
Quiescent Supply Current
80 110
mV/mA
1.9 20
∆V
OUT
/∆I
OUT
Load Regulation
0.65 2
ppm/°C15 50TCV
OUT
Output Voltage Temperature Coefficient
35
µV
P-P
900
e
n
Output Voltage Noise
µV/V150∆V
OUT
/∆V
IN
Line Regulation
UNITSMIN TYP MAXSYMBOLPARAMETER
ELECTRICAL CHARACTERISTICS—MAX6150
(VIN= 5.2V, I
OUT
= 0mA, TA= +25°C, unless otherwise noted.) (Note 1)
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