SOT23, Low-Cost, Low-Dropout, 3-Terminal Voltage References MAX6125/MAX6141/ MAX6145/MAX6150/MAX6160. Features. General Description.

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1 General Description The /MAX6141/ low-dropout, micropower, three-terminal voltage references offer 2.5V, 4.96V, 4.5V, 5.V, and adjustable (1.23V to 12.4V) output voltages, respectively. Low, 2mV 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 5ppm/ C (except for the MAX616). The /MAX6141/MAX6145/MAX615 are available in 3-pin SOT23 and 8-pin SO packages. The MAX616 is available in 4-pin SOT143 and 8-pin SO packages. Selector Guide PART PRESET OUTPUT VOLTAGE (V) PIN- PACKAGE SOT23/8 SO MAX SOT23/8 SO MAX SOT23/8 SO MAX SOT23/8 SO MAX616 Adjustable (1.23 to 12.4) Typical Operating Circuit appears on last page. 4 SOT143/8 SO Features 3-Pin SOT23 Package (/MAX6141/MAX6145/MAX615) 4-Pin SOT143 Package (MAX616) Low, 2mV Dropout Voltage 75μA Supply Current, Independent of Input Voltage 15ppm/ C Typical Tempco (5ppm/ C, max) Stable for All Capacitive Loads up to 1nF Adjustable Output Voltage from 1.23V to (V IN -.2V) (MAX616) Optimized for 3V/5V Operation Applications 3V/5V Systems Battery-Powered Systems Portable and Hand-Held Equipment Data-Acquisition Systems Instrumentation and Process Control Ordering Information PART TEMP RANGE PIN- PACKAGE Ordering Information appears at end of data sheet. TOP MARK ESA -4 C to +85 C 8 SO EUR-T -4 C to +85 C 3 SOT23-3 EBAA MAX6141ESA -4 C to +85 C 8 SO MAX6141EUR-T -4 C to +85 C 3 SOT23-3 ECAA Pin Configurations TOP VIEW OUT N.C. N.C. GND MAX6141 MAX6145 MAX615 MAX IN N.C. N.C. N.C. (ADJ) IN OUT 1 2 MAX6141 MAX6145 MAX615 3 GND GND ADJ 1 2 MAX OUT IN SO SOT23-3 SOT143-4 ( ) ARE FOR MAX616 ONLY ; Rev. 2; 8/16

2 Absolute Maximum Ratings (Voltages With Respect to GND) IN...-.3V to +13.5V OUT, ADJ...-.3V to (V IN +.3V) Output Short-Circuit Duration (to IN or GND)...Continuous Continuous Power Dissipation (T A = +7 C) 8-Pin SO (derate 5.9mW/ C above +7 C)...471mW 3-Pin SOT23 (derate 4mW/ C above +7 C)...32mW 4-Pin SOT143 (derate 4mW/ C above +7 C)...32mW Operating Temperature Range...-4 C to +85 C Storage Temperature Range C to +16 C Lead Temperature (soldering, 1s)...+3 C 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 (V IN = 2.7V, I OUT = ma, T A = +25 C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V IN T A = T MIN to T MAX V T A = +25 C Output Voltage V OUT T A = T MIN to T MAX V Output Voltage Temperature Coefficient TCV OUT T A = T MIN to T MAX 15 5 ppm/ C.1Hz to 1Hz 15 Output Voltage Noise e n 1Hz to 1kHz 5 µv P-P Line Regulation V OUT / V IN V IN = 2.7V to 12.6V, T A = T MIN to T MAX 1 5 µv/v I SOURCE = ma to 1mA.4 1 Load Regulation V OUT / I OUT I SINK = ma to 1mA mv/ma T A = +25 C 75 1 Quiescent Supply Current I Q T A = T MIN to T MAX 13 µa Change in Supply Current vs. Change in Input Voltage I Q / V IN V IN = 2.7V to 12.6V µa/v Electrical Characteristics MAX6141 (V IN = 4.3V, I OUT = ma, T A = +25 C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V IN T A = T MIN to T MAX V T A = +25 C Output Voltage V OUT T A = T MIN to T MAX V Output Voltage Temperature Coefficient TCV OUT T A = T MIN to T MAX 15 5 ppm/ C.1Hz to 1Hz 25 Output Voltage Noise e n 1Hz to 1kHz 7 µv P-P Line Regulation V OUT / V IN V IN = 4.3V to 12.6V, T A = T MIN to T MAX 2 5 µv/v I SOURCE = ma to 1mA Load Regulation V OUT / I OUT I SINK = ma to 1mA mv/ma T A = +25 C Quiescent Supply Current I Q T A = T MIN to T MAX 13 µa Change in Supply Current vs. Change in Input Voltage I Q / V IN V IN = 4.3V to 12.6V µa/v Thermal Hysteresis 8 ppm Maxim Integrated 2

3 Electrical Characteristics MAX6145 (V IN = 4.7V, I OUT = ma, T A = +25 C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V IN T A = T MIN to T MAX V T A = +25 C Output Voltage V OUT T A = T MIN to T MAX Output Voltage Temperature Coefficient TCV OUT T A = T MIN to T MAX 15 5 ppm/ C.1Hz to 1Hz 3 Output Voltage Noise e n 1Hz to 1kHz 8 µv P-P Line Regulation V OUT / V IN V IN = 4.7V to 12.6V, T A = T MIN to T MAX 2 5 µv/v I SOURCE = ma to 1mA Load Regulation V OUT / I OUT I SINK = ma to 1mA mv/ma T A = +25 C Quiescent Supply Current I Q T A = T MIN to T MAX 13 µa Change in Supply Current vs. Change in Input Voltage I Q / V IN V IN = 4.7V to 12.6V µa/v V Electrical Characteristics MAX615 (V IN = 5.2V, I OUT = ma, T A = +25 C, unless otherwise noted.) (Note 1) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V IN T A = T MIN to T MAX V T A = +25 C Output Voltage V OUT T A = T MIN to T MAX V Output Voltage Temperature Coefficient TCV OUT T A = T MIN to T MAX 15 5 ppm/ C.1Hz to 1Hz 35 Output Voltage Noise e n 1Hz to 1kHz 9 µv P-P Line Regulation V OUT / V IN V IN = 5.2V to 12.6V, T A = T MIN to T MAX 1 5 µv/v I SOURCE = ma to 1mA.65 2 Load Regulation V OUT / I OUT I SINK = ma to 1mA mv/ma T A = +25 C 8 11 Quiescent Supply Current I Q T A = T MIN to T MAX 145 µa Change in Supply Current vs. Change in Input Voltage I Q / V IN V IN = 5.2V to 12.6V µa/v Maxim Integrated 3

4 Electrical Characteristics MAX616 (V IN = 2.7V; I OUT = ma; R1 = 215kΩ ±.1%, R2 = 28kΩ ±.1% (circuit of Figure 1); T A = +25 C; unless otherwise noted.) (Notes 1, 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V IN T A = T MIN to T MAX V Output Voltage Range T A = T MIN to T MAX 1.23 V IN -.2 V T A = +25 C Output Voltage V OUT T A = T MIN to T MAX ADJ Feedback Voltage Threshold V ADJ 1.23 V ADJ Input Current I ADJ V ADJ = 1.23V 7 na Output Voltage Temperature Coefficient TCV OUT T A = T MIN to T MAX 15 1 ppm/ C.1Hz to 1Hz 15 Output Voltage Noise e n 1Hz to 1kHz 5 µv P-P Line Regulation V OUT / V IN V IN = 2.7V to 12.6V, T A = T MIN to T MAX 1 5 µv/v I SOURCE = ma to 1mA.35 1 Load Regulation V OUT / I OUT I SINK = ma to 1mA mv/ma T A = +25 C 75 1 Quiescent Supply Current I Q T A = T MIN to T MAX 13 µa Change in Supply Current vs. Change in Input Voltage I Q / V IN V IN = 2.7V to 12.6V µa/v Note 1: All devices are 1% production tested at T A = +25 C, and are guaranteed by design for T A = T MIN to T MAX as specified. Note 2: R1 and R2 program the output voltage in the 1.23V to (V IN -.2V) range (see the Setting the MAX616 Output Voltage section). V Typical Operating Characteristics (V IN = V IN(MIN), I OUT = ma, T A = +25 C, unless otherwise noted.) SUPPLY CURRENT (µa) SUPPLY CURRENT vs. INPUT VOLTAGE VALID OVER V IN(MIN) TO V IN(MAX) FOR EACH PART INPUT VOLTAGE ( V) toc1 SUPPLY CURRENT (µa) V IN = 1V SUPPLY CURRENT vs. TEMPERATURE V IN = 5V V IN = 3V toc2 LOAD REGULATION (mv/ma) LOAD REGULATION (SOURCING) vs. TEMPERATURE V OUT = 4.5V (MAX6145) V OUT = 5.V (MAX615) V OUT = 4.96V (MAX6141) V OUT = 2.5V (/MAX616) TOC3 Maxim Integrated 4

5 Typical Operating Characteristics (continued) (V IN = V IN(MIN), I OUT = ma, T A = +25 C, unless otherwise noted.) LOAD REGULATION (mv/ma) LOAD REGULATION (SINKING) vs. TEMPERATURE V OUT = 4.5V (MAX6145) V OUT = 5.V (MAX615) V OUT = 4.96V (MAX6141) V OUT = 2.5V (/MAX616) toc4 OUTPUT VOLTAGE (V) /MAX616 OUTPUT VOLTAGE vs. SOURCE CURRENT SOURCE CURRENT (ma) toc5 OUTPUT VOLTAGE (V) MAX6141 OUTPUT VOLTAGE vs. SOURCE CURREN SOURCE CURRENT (ma) MAX6145 OUTPUT VOLTAGE vs. SOURCE CURRENT toc MAX615 OUTPUT VOLTAGE vs. SOURCE CURRENT toc8 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) SOURCE CURRENT (ma) SOURCE CURRENT (ma) DROPOUT VOLTAGE (mv) DROPOUT VOLTAGE vs. SOURCE CURRENT toc9 DROPOUT VOLTAGE (mv) /MAX616 DROPOUT VOLTAGE vs. TEMPERATURE I OUT = 1mA toc SOURCE CURRENT (ma) Maxim Integrated 5

6 Typical Operating Characteristics (continued) (V IN = V IN(MIN), I OUT = ma, T A = +25 C, unless otherwise noted.) DROPOUT VOLTAGE (mv) MAX6141/MAX6145/MAX615 DROPOUT VOLTAGE vs. TEMPERATURE I OUT = 1mA toc11 ADJ INPUT CURRENT (na) MAX616 ADJ INPUT CURRENT vs. TEMPERATURE V IN = 2.7V V ADJ = 1.23V toc CHANGE IN OUTPUT VOLTAGE* (%) CHANGE IN OUTPUT VOLTAGE vs. INPUT VOLTAGE VALID OVER V IN(MIN) TO V IN(MAX) FOR EACH PART toc13 CHANGE IN OUTPUT VOLTAGE** (%) CHANGE IN OUTPUT VOLTAGE vs. TEMPERATURE toc INPUT VOLTAGE (V) *With respect to output voltage at V IN = V IN(MIN) **With respect to output voltage at T A = +25 C. PSRR (db) POWER-SUPPLY REJECTION RATIO vs. FREQUENCY FREQUENCY (khz) toc15 THERMAL HYSTERESIS (ppm) MAX6141ESA THERMAL HYSTERESIS (5 PARTS, 6 TEMPERATURE CYCLES) V IN = 4.3V, V OUT = 4.96V, C OUT = NO LOAD IC1 IC4 IC3 IC5 IC TEMPERATURE CYCLES Maxim Integrated 6

/MAX6141/ Typical Operating Characteristics (continued) (VIN =

) LOAD-TRANSIENT RESPONSE (SOURCING) LOAD-TRANSIENT RESPONSE

= ma to 1mA B = OUTPUT VOLTAGE, 5mV/div A = OUTPUT CURRENT, 1mA/div,

7 /MAX6141/ Typical Operating Characteristics (continued) (VIN = VIN(MIN), IOUT = ma, TA = +25 C, unless otherwise noted.) LOAD-TRANSIENT RESPONSE (SOURCING) LOAD-TRANSIENT RESPONSE (SINKING) A A B B 1µs/div 1µs/div A = OUTPUT CURRENT, 1mA/div, IOUT = ma to 1mA B = OUTPUT VOLTAGE, 5mV/div A = OUTPUT CURRENT, 1mA/div, IOUT = ma to -1mA B = OUTPUT VOLTAGE, 2mV/div LINE-TRANSIENT RESPONSE.1Hz TO 1Hz NOISE A V 5µV/div V B 5µs/div 1s/div A = INPUT VOLTAGE, 1mV/div, VIN = 3V ±5mV B = OUTPUT VOLTAGE, 2mV/div Maxim Integrated 7

8 Pin Description PIN SO SOT23-3 SOT143 NAME FUNCTION OUT Reference Output 2, 3, 5*, 6, 7 N.C. No Connection. Not internally connected GND Ground 5** 2 ADJ IN Input Voltage *Except MAX616. **MAX616 only. Adjustable output voltage feedback input. Connect a resistor divider between OUT, ADJ, and GND (Figure 1). V IN IN MAX616 GND OUT ADJ Figure 1. MAX616 Adjustable Output Circuit Applications Information R1 R2 V OUT R1 = 1.6 x 1 ( ) 5 V OUT V Ω ADJ R1 R2 = V ( OUT V - 1 ADJ ) V ADJ = 1.23V Setting the MAX616 Output Voltage Set the output voltage on the MAX616 by connecting a resistor divider between OUT, ADJ, and GND (Figure 1). Choose R1 according to the following equation: R1 = (1.6 x 15) (V OUT / V ADJ ) Ω where V TH = 1.23V. The scaling factor (1.6 x 15) compensates for the MAX616 s change in ADJ input current over temperature. When R1 is chosen correctly, the change in voltage across R1 caused by the ADJ input current is properly cancelled. Choose R1 to within ±5% of this calculated value (nearest standard value plus specified resistor tolerance) to optimize the output voltage temperature coefficient. Using R1 = 215kΩ: 215kΩ R2 = 28kΩ 2.5V V which is also the nearest.1% resistor value. Choose R2 according to the following equation: R2 = R1 / (V OUT / V ADJ - 1) For example, a 2.5V output requires R1 = (1.6 x 15) (2.5V / 1.23V) 215kΩ, which is the nearest standardvalue.1% resistor. Input Bypassing For the best line-transient performance, decouple the input with a.1μf ceramic capacitor, as shown in the Typical Operating Circuit. Locate the capacitor as close to the device pin as possible. Where transient performance is less important, no capacitor is necessary. Output Bypassing The /MAX6141/ do not require an output capacitor. They are stable for capacitive loads from nf to 1nF. If your application requires an output charge reservoir (e.g., to decouple the reference from a DAC s input), then make sure that the total output capacitive load does not exceed 1nF for optimum settling-time performance. Maxim Integrated 8

9 Ordering Information (continued) Typical Operating Circuit PART TEMP RANGE PIN- PACKAGE TOP MARK V IN = (V OUT + 2mV) TO 12.6V MAX6145ESA -4 C to +85 C 8 SO MAX6145EUR-T -4 C to +85 C 3 SOT23-3 EDAA MAX615ESA -4 C to +85 C 8 SO IN MAX615EUR-T -4 C to +85 C 3 SOT23-3 EEAA MAX616ESA -4 C to +85 C 8 SO MAX616EUS-T -4 C to +85 C 4 SOT143-4 JXAA.1µF* MAX6141 MAX6145 MAX615 OUT V OUT Chip Information TRANSISTOR COUNT: 42 GND *OPTIONAL Maxim Integrated 9

10 Package Information For the latest package outline information and land patterns (footprints), go to Note that a +, #, or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Maxim Integrated 1

11 Package Information (continued) For the latest package outline information and land patterns (footprints), go to Note that a +, #, or - in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. Maxim Integrated 11

12 Revision History REVISION NUMBER REVISION DATE 2 8/16 DESCRIPTION Added new row to Electrical Characteristics table for Thermal Hysteresis spec and added TOC 16 to Typical Operating Characteristics PAGES CHANGED 2, 6 For pricing, delivery, and ordering information, please contact Maxim Direct at , or visit Maxim Integrated s website at Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. 216 Maxim Integrated Products, Inc. 12

MAX6126 Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

MAX6126 Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference General Description The MAX6126 is an ultra-low-noise, high-precision, lowdropout voltage reference. This family of voltage references feature curvature-correction circuitry and high-stability, laser-trimmed,