Click here for production status of specific part numbers. MAX6138 0.1%, 25ppm, SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages General Description Features The MAX6138 is a precision, two-terminal shunt mode, Ultra-Small 3-Pin SC70 Package bandgap voltage reference available in fixed reverse 0.1% (max) Initial Accuracy breakdown voltages of 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 25ppm/C (max) Temperature Coefficient Guaranteed 4.096V, and 5.0V. Ideal for space-critical applications, the Over -40C to +85C Temperature Range MAX6138 is offered in the subminiature 3-pin SC70 sur- Wide Operating Current Range: 60A to 15mA face-mount package (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount packages. Low 28V Output Noise (10Hz to 10kHz) RMS Laser-trimmed resistors ensure precise initial accuracy. 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V With a 25ppm/C temperature coefficient, the device is Fixed Reverse Breakdown Voltages offered in three grades of initial accuracy ranging from No Output Capacitors Required 0.1% to 0.5%. The MAX6138 has a 60A to 15mA shunt- Stable with Capacitive Loads current capability with low-dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide Selector Guide range of operating temperatures and currents. The MAX6138 does not require an external stabilizing OUTPUT TEMP PIN- PART VOLTAGE capacitor while ensuring stability with capacitive loads. RANGE PACKAGE (V) The MAX6138 is a higher precision device in a smaller package than the LM4040/LM4050. MAX6138 EXR12-T -40C to +85C 3 SC70-3 1.2205 MAX6138 EXR21-T -40C to +85C 3 SC70-3 2.0480 Applications MAX6138 EXR25-T -40C to +85C 3 SC70-3 2.5000 Portable, Battery-Powered Equipment MAX6138 EXR30-T -40C to +85C 3 SC70-3 3.0000 Notebook Computers MAX6138 EXR33-T -40C to +85C 3 SC70-3 3.3000 Cell Phones Industrial Process Control MAX6138 EXR41-T -40C to +85C 3 SC70-3 4.0960 MAX6138 EXR50-T -40C to +85C 3 SC70-3 5.0000 Ordering Information appears at end of data sheet. Pin Configuration Typical Operating Circuit V S TOP VIEW I + I SHUNT LOAD R S I LOAD + 1 V R MAX6138 3 N.C.* I SHUNT - 2 MAX6138 SC70 *PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2. 19-2090 Rev 3 12/19MAX6138 0.1%, 25ppm, SC70 Shunt Voltage Reference with Multiple Reverse Breakdown Voltages Absolute Maximum Ratings Reverse Current (cathode to anode)..................................20mA Operating Temperature Range ........................... -40C to +85C Forward Current (anode to cathode) ..................................10mA Storage Temperature Range ............................ -65C to +150C Continuous Power Dissipation (T = +70C) Junction Temperature ......................................................+150C A 3-Pin SC70 (derate 2.17mW/C above +70C) ...........174mW 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 CharacteristicsMAX6138 12 (1.2205V) (I = 100A, T = -40C to +85C, unless otherwise noted. Typical values are at T = +25C.) (Note 1) R A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS MAX6138A (0.1%) 1.2193 1.2205 1.2217 Reverse Breakdown Voltage V T = +25C MAX6138B (0.2%) 1.2181 1.2205 1.2229 V R A (Note 2) MAX6138C (0.5%) 1.2144 1.2205 1.2266 Minimum Operating Current I 45 60 A RMIN Reverse Voltage Temperature Coefficient TC 4 25 ppm/C (Notes 2, 3) Reverse Breakdown Voltage I I 1mA 0.3 1.0 RMIN R Change with Operating V /I mV R R 1mA I 12mA 2.5 8.0 Current Change R Reverse Dynamic Z I = 1mA, f = 120Hz, I = 0.1I 0.3 0.8 R R AC R Impedance (Note 3) Wideband Noise e I = 10A, 10Hz f 10kHz 20 V N R RMS Reverse Breakdown Voltage V t = 1000h 120 ppm R Maxim Integrated 2 www.maximintegrated.com