MAX6018 Precision, Micropower, 1.8V Supply, Low-Dropout, SOT23 Voltage Reference General Description Benefits and Features The MAX6018 is a precision, low-voltage, low-dropout, Ultra-Low Supply Current: 5A (max) micropower voltage reference in a SOT23 package. This 1.6V Output from 1.8V Input three-terminal reference operates with an input voltage Ultra-Small, 3-Pin SOT23 Package from (V + 200mV) to 5.5V, and is available with output OUT voltage options of 1.2V, 1.6V, 1.8V, and 2.048V Initial Accuracy: 0.2% (max) The MAX6018 voltage reference consumes less than Low Temperature Drift: 50ppm/C (max) 5A (max) of supply current and can source and sink up 200mV Dropout Voltage to 1mA of load current. Unlike conventional shunt-mode Load Regulation (1mA Source): 700V/mA (max) (two-terminal) references that waste supply current and Line Regulation (V + 200mV) to 5.5V: 250V/V require an external resistor, devices in the MAX6018 OUT (max) family offer a supply current that is virtually independent of supply voltage (with only 0.1A/V variation with supply Four Output Voltage Options: 1.2V, 1.6V, voltage) and do not require an external resistor. The 1.8V, 2.048V MAX6018 has initial accuracies of 0.2% (A grade) and 0.4% (B grade) and temperature drift of 50ppm/C (max). The low-dropout voltage and the ultra-low, supply voltage- Ordering Information independent supply current make this device ideal for two-cell alkaline, end-of-life, battery-monitoring systems. PIN- TOP PART TEMP RANGE The MAX6018 is available in a tiny 3-pin SOT23 package. PACKAGE MARK MAX6018AEUR12+T -40C to +85C 3 SOT23-3 FZJH Applications MAX6018BEUR12+T -40C to +85C 3 SOT23-3 FZJI Two-Cell, Battery-Operated Systems MAX6018AEUR16+T -40C to +85C 3 SOT23-3 FZJJ Battery-Operated Equipment MAX6018BEUR16+T -40C to +85C 3 SOT23-3 FZJK Hand-Held Equipment MAX6018AEUR18+T -40C to +85C 3 SOT23-3 FZJL Data-Acquisition Systems MAX6018BEUR18+T -40C to +85C 3 SOT23-3 FZJM Industrial and Process-Control Systems MAX6018AEUR21+T -40C to +85C 3 SOT23-3 FZJN Typical Application Circuit MAX6018BEUR21+T -40C to +85C 3 SOT23-3 FZJO V CC REFERENCE IN OUT Selector Guide OUT OUTPUT INITIAL * MAX6018 PART VOLTAGE (V) ACCURACY (%) 1, MAX* MAX6018AEUR12 1.263 0.2 GND MAX6018BEUR12 1.263 0.4 MAX6018AEUR16 1.600 0.2 *OPTIONAL MAX6018BEUR16 1.600 0.4 MAX6018AEUR18 1.800 0.2 Pin Configuration MAX6018BEUR18 1.800 0.4 TOP VIEW MAX6018AEUR21 2.048 0.2 IN 1 MAX6018BEUR21 2.048 0.4 MAX6018 3 GND OUT 2 SOT23 19-2211 Rev 3 10/15MAX6018 Precision, Micropower, 1.8V Supply, Low-Dropout, SOT23 Voltage Reference Absolute Maximum Ratings (Voltages Referenced to GND) Operating Temperature Range ........................... -40C to +85C V ...........................................................................-0.3V to +6V Junction Temperature ......................................................+150C IN Output Short-Circuit Duration to GND or V ............Continuous Storage Temperature Range ............................ -65C to +150C IN Continuous Power Dissipation (T = +70C) Lead Temperature (soldering, 10s) .................................+300C A 3-Pin SOT23 (derate 4.0mW/C above +70C) ..........320mW 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 (MAX6018 121.263V) (V = 1.8V C = 47nF, I = 0 T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 1) IN OUT OUT A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT MAX6018A 12 (0.2%) 1.2605 1.2630 1.2655 Output Voltage V V OUT MAX6018B 12 (0.4%) 1.2580 1.2630 1.2681 Output Voltage Temperature Drift TCV (Note 2) 16 50 ppm/C OUT V / OUT Line Regulation 1.8V V 5.5V 50 400 V/V IN V IN 0 I 1mA 90 700 V/mA V / OUT OUT Load Regulation I -100A I 0 2 9 V/A OUT OUT Sourcing to GND 3 Short-Circuit Current I mA SC Sinking from V 6 IN V / OUT Long-Term Stability 1000hrs at T = +25C 100 ppm A Time Thermal Hysteresis (Note 4) 130 ppm DYNAMIC CHARACTERISTICS 0.1Hz to 10Hz 45 V p-p Noise Voltage e OUT 10Hz to 10kHz 100 V RMS Ripple Rejection V = 1.8V 100mV (f = 120Hz) 85 dB IN Turn-On Settling Time t Settling to 0.1% C = 5nF 200 s R OUT Capacitive-Load Stability Range C (Note 2) 47 1000 nF OUT INPUT Supply Voltage Range V Guaranteed by Line Regulation Test 1.8 5.5 V IN T = +25C 3 5 A Quiescent Supply Current I A IN T = T to T 3 6 A MIN MAX Change in Quiescent Supply I /V 1.8V V 5.5V 0.1 0.5 A/V IN IN IN Current vs. Input Voltage Maxim Integrated 2 www.maximintegrated.com