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19-4601; Rev 0; 4/09
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Precision, Micropower, 3V Series Voltage Reference in SOT23
General Description
The MAX6010 is a precision, low-noise, low-dropout, micropower voltage reference in a SOT23 package. This three-terminal voltage reference operates with an input voltage from 3.2V to 5.5V, and outputs 3V. The MAX6010 voltage reference consumes less than 5A (max) of supply current and can source up to 7mA and sink up to 1mA of load current when the input is 5V. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, the MAX6010 offers a supply current that is virtually independent of supply voltage (with only 0.05A/V variation with supply voltage) and does not require an external resistor. The MAX6010 has initial accuracies of 0.2% (A grade) and 0.4% (B grade) and a temperature drift of 50ppm/C (max). The low-dropout voltage and the ultra-low supply current over the full voltage range make this device ideal for portable and battery-operated applications. The MAX6010 is available in a small, 3-pin SOT23 package. o 3V Output from 3.2V Input o Small, 3-Pin SOT23 Package o Initial Accuracy: 0.2% (max) o Low Temperature Drift: 50ppm/C (max) o 200mV Dropout Voltage o Load Regulation (7mA Source): 200V/mA (max) o Line Regulation 3.2V to 5.5V: 350V/V (max)
Features
o Ultra-Low Supply Current: 5A (max)
MAX6010
Ordering Information
PART MAX6010AEUR+T TEMP RANGE -40C to +85C PINPACKAGE 3 SOT23 TOP MARK FZUS FZUU
Applications
Battery-Operated Equipment Portable Equipment Lens Image Stabilization Data-Acquisition Systems Industrial and Process-Control Systems
MAX6010BEUR+T -40C to +85C 3 SOT23 +Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel.
Selector Guide
PART MAX6010AEUR MAX6010BEUR OUTPUT VOLTAGE (V) 3 3 INITIAL ACCURACY (%) 0.2 0.4 TEMP COEFFICIENT (ppm/C) 50 50
Typical Application Circuit
VCC
Pin Configuration
IN OUT 0.1F *
REFERENCE OUT
TOP VIEW
IN 1
MAX6010
MAX6010
0.001F TO 1F OUT 2
3
GND
SOT23
GND
*OPTIONAL
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com.
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Precision, Micropower, 3V Series Voltage Reference in SOT23 MAX6010
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) VIN, VOUT ..................................................................-0.3V to +6V Output Short-Circuit Duration to GND or VIN ............Continuous Continuous Power Dissipation (TA = +70C) 3-Pin SOT23 (derate 4.0mW/C above +70C).............320mW Operating Temperature Range ...........................-40C to +85C Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +150C Lead Temperature (soldering, 10s) .................................+300C
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.
ELECTRICAL CHARACTERISTICS
(VIN = 5V; COUT = 47nF, CIN = 0.1F, IOUT = 0; TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1)
PARAMETER OUTPUT Output Voltage Output-Voltage Temperature Drift Line Regulation Load Regulation Short-Circuit Current Dropout Voltage Thermal Hysteresis DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time Capacitive-Load Stability Range INPUT Supply Voltage Range Quiescent Supply Current Change in Quiescent Supply Current vs. Input Voltage VIN IIN IIN/VIN Guaranteed by line regulation test TA = +25C TA = TMIN to TMAX 3.2V VIN 5.5V 3.2 3.6 3.6 0.5 5.5 5 6 0.25 V A A/V eOUT PSRR tR COUT 0.1Hz to 10Hz 10Hz to 10kHz VIN = 5V 100mV (f 2kHz), IOUT = 1mA Settling to 0.1%, COUT = 0.1F (Note 2) 1 100 200 50 700 1000 VP-P VRMS dB s nF VOUT TCVOUT VOUT/ VIN VOUT/ IOUT ISC VIN VOUT MAX6010A (0.2%), TA = +25C MAX6010B (0.4%), TA = +25C (Note 2) 3.2V VIN 5.5V 0 IOUT 7mA -1mA IOUT 0 Sourcing to GND Sinking from VIN IOUT = 1mA (Note 3) (Note 4) 2.994 2.988 3.000 3.000 16 50 60 0.25 20 15 55 210 200 3.006 3.012 50 350 200 10 V ppm/oC V/V V/mA V/A mA mV ppm SYMBOL CONDITIONS MIN TYP MAX UNITS
Note 1: Devices are 100% production tested at TA = +25C and are guaranteed by design from TA = TMIN to TMAX. Note 2: Not production tested. Guaranteed by design. Note 3: Dropout voltage is the minimum input voltage at which VOUT changes 0.2% from VOUT at rated VIN and is guaranteed by load regulation test. Note 4: Thermal hysteresis is defined as the change in TA = +25C output voltage before and after temperature cycling of the device (from TA = TMIN to TMAX). Initial measurement at TA = +25C is followed by temperature cycling the device to TA = +85C then to TA = -40C and another measurement at TA = +25C is compared to the original measurement at TA = +25C. 2 _______________________________________________________________________________________
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Precision, Micropower, 3V Series Voltage Reference in SOT23
Typical Operating Characteristics
(VIN = 5V, CIN = 0.1F, COUT = 0.1F. TA = +25C, unless otherwise noted.)
OUTPUT-VOLTAGE DRIFT vs. TEMPERATURE
3.002 OUTPUT VOLTAGE (V) 3.001 3.000 2.999 2.998 2.997 2.996 2.995 -40 -15 10 35 60 85 TEMPERATURE (C) 0 3.1 3.5 3.9 4.3 4.7 5.1 5.5 INPUT VOLTAGE (V)
MAX6010 toc01
MAX6010
LINE REGULATION
MAX6010 toc02
3.003
0.25 OUTPUT VOLTAGE CHANGE (mV) TA = +85C
0.20 TA = +25C TA = -40C
0.15
0.10
0.05
DROPOUT VOLTAGE vs. SOURCE CURRENT
MAX6010 toc03
LOAD REGULATION
0.8 OUTPUT-VOLTAGE CHANGE (mV) 0.6 0.4 0.2 0 -0.2 -0.4 -0.6 -0.8 -1.0 TA = -40C TA = +25C TA = +85C
MAX6010 toc04
0.8 0.7 DROPOUT VOLTAGE (V) 0.6 0.5 0.4 TA = -40C 0.3 0.2 0.1 0 0 1 2 3 4 5 6 7 SOURCE CURRENT (mA) TA = +85C TA = +25C
1.0
-1
0
1
2
3
4
5
6
7
LOAD CURRENT (mA)
POWER-SUPPLY REJECTION RATIO vs. FREQUENCY
MAX6010 toc05
SUPPLY CURRENT vs. INPUT VOLTAGE
3.68 3.66 SUPPLY CURRENT (A) 3.64 3.62 3.60 3.58 3.56 3.54 3.52 3.50
MAX6010 toc06
90 80 70 60 PSRR (dB) 50 40 30 20 10 0 10 100 1000 FREQUENCY (Hz) 10,000 CIN = COUT = 47nF ILOAD = 1mA ILOAD = 0mA
3.70
100,000
3.1
3.5
3.9
4.3
4.7
5.1
5.5
INPUT VOLTAGE (V)
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Precision, Micropower, 3V Series Voltage Reference in SOT23 MAX6010
Typical Operating Characteristics (continued)
(VIN = 5V, CIN = 0.1F, COUT = 0.1F. TA = +25C, unless otherwise noted.)
OUTPUT IMPEDANCE vs. FREQUENCY
MAX6010 toc07
SUPPLY CURRENT vs. TEMPERATURE
4.3 4.1 SUPPLY CURRENT (A) 3.9 3.7 3.5 3.3 3.1 2.9 2.7 VIN = 3.2V VIN = 5.5V
MAX6010 toc08
1000
4.5
OUTPUT IMPEDANCE ()
100
10
1
0.10
0.01 1 10 100 FREQUENCY (Hz) 1000 10,000
2.5 -40 -15 10 35 60 85 TEMPERATURE (C)
10Hz TO 10kHz OUTPUT NOISE
MAX6010 toc09
0.1Hz TO 10Hz OUTPUT NOISE
MAX6010 toc10
100V/div
50V/div
100ms/div
1s/div
TURN-ON TRANSIENT
MAX6010 toc11
TURN-OFF TRANSIENT
MAX6010 toc12
VIN 2V/div 0V
VIN 2V/div 0V
VOUT 1V/div
VOUT 1V/div
0V
0V
400s/div
400s/div
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Precision, Micropower, 3V Series Voltage Reference in SOT23
Typical Operating Characteristics (continued)
(VIN = 5V, CIN = 0.1F, COUT = 0.1F. TA = +25C, unless otherwise noted.)
MAX6010
LOAD-TRANSIENT RESPONSE
MAX6010 toc13
LINE-TRANSIENT RESPONSE
MAX6010 toc14
-1mA VIN 2V/div 7mA
VIN 200mV/div 4.8V
VOUT 1V/div
VOUT 10mV/div
400s/div
400s/div
Detailed Description
The MAX6010 is a precision, low-noise, low-dropout, micropower, bandgap voltage reference in a SOT23 package. This three-terminal reference operates with an input voltage from 3.2V to 5.5V, and outputs 3V. The device sources up to 7mA with < 200mV of dropout voltage and requires only 5A (max) supply current.
PIN 1 2 3 NAME IN OUT GND
Pin Description
FUNCTION Supply Voltage Input Reference Voltage Output. Bypass with at least 1nF to ground. (See the Output/Load Capacitance section.) Ground
Applications Information
Output/Load Capacitance
The MAX6010 requires a minimum of 1nF load to maintain output stability. The device remains stable for capacitive loads as high as 1F. In applications where the load or the supply can experience step changes, a larger output capacitor reduces the amount of overshoot (or undershoot) and assists the circuit's transient response.
The input voltage source must be capable of providing this current to ensure reliable turn-on.
Turn-On Time
The MAX6010 typically turns on and settles to within 0.1% of the final value in 700s. The turn-on time can increase with the device operating at the minimum dropout voltage and the maximum load.
Supply Current
The 5A maximum supply current varies only 0.05A/V with the supply voltage. When the supply voltage is below the minimum-specified input voltage (as during turn-on), the device can draw up to 20A beyond the nominal supply current.
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Precision, Micropower, 3V Series Voltage Reference in SOT23 MAX6010
Chip Information
PROCESS: BiCMOS
PACKAGE TYPE 3 SOT23
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. PACKAGE CODE U3-1 DOCUMENT NO. 21-0051
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
6 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2009 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.

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