LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages General Description Features The LM4040 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 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applica- 100ppm/C (max) Temperature Coefficient tions, the LM4040 is offered in the subminiature 3-pin Guaranteed over -40C to +125C Temperature SC70 surface-mount package (1.8mm 1.8mm), 50% Range smaller than comparable devices in SOT23 surface- Wide Operating Current Range: 60A to 15mA mount packages (SOT23 versions are also available). Low 28V Output Noise (10Hz to 10kHz) RMS Laser-trimmed resistors ensure precise initial accuracy. With a 100ppm/C temperature coefficient, the device 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V is offered in four grades of initial accuracy ranging from Fixed Reverse Breakdown Voltages 0.1% to 1%. The LM4040 has a 60A to 15mA shunt No Output Capacitors Required current capability with low dynamic impedance, ensur- ing stable reverse breakdown voltage accuracy over a Tolerates Capacitive Loads wide range of operating temperatures and currents. The LM4040 does not require an external stabilizing Pin Configuration capacitor while ensuring stability with any capacitive load. TOP VIEW The LM4040 is guaranteed over the temperature range of -40C to +125C. + + 1 For a 1.225V output version, refer to the LM4041 data sheet. LM4040 3 N.C.* Applications - 2 Portable, Battery-Powered Equipment Notebook Computers SC70-3/SOT23-3 Cell Phones *PIN 3 MUST BE LEFT UNCONNECTED Industrial Process Controls OR CONNECTED TO PIN 2. Ordering Information appears at end of data sheet. For pricing, delivery, and ordering information, please contact Maxim Direct 19-1787 Rev 8 3/13 at 1-888-629-4642, or visit Maxims website at www.maximintegrated.com.LM4040 Improved Precision Micropower Shunt Voltage Reference with Multiple Reverse Breakdown Voltages ABSOLUTE MAXIMUM RATINGS Reverse Current (cathode to anode) ..................................20mA Operating Temperature Range Forward Current (anode to cathode) ..................................10mA LM4040 I ..................................................-40C to +85C Continuous Power Dissipation (T = +70C) LM4040 E ..............................................-40C to +125C A 3-Pin SC70 (derate 2.17mW/C above +70C)............174mW Storage Temperature Range .............................-65C to +150C 3-Pin SOT23 (derate 4.01mW/C above +70C)..........320mW Junction Temperature......................................................+150C Lead Temperature (soldering, 10s)..................................+300C Soldering Temperature (reflow) .......................................+260C 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 CHARACTERISTICS2.048V (I = 100A, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 1) R A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS LM4040A (0.1%) 2.046 2.048 2.050 LM4040B (0.2%) 2.044 2.048 2.052 Reverse Breakdown Voltage V T = +25C V R A LM4040C (0.5%) 2.038 2.048 2.058 LM4040D (1.0%) 2.028 2.048 2.068 LM4040A 2.0 15 LM4040B 4.0 17 Reverse Breakdown Voltage V mV R Tolerance (Note 2) LM4040C 10 23 LM4040D 20 41 LM4040A/B/C 45 65 Minimum Operating Current I A RMIN LM4040D 45 70 I = 10mA 20 R Average Reverse Voltage LM4040A/B/C 15 100 Temperature Coefficient I = 1mA V / T R ppm/C R LM4040D 15 150 (Notes 2 and 3) I = 100A 15 R LM4040A/B/C 0.3 1.0 I I 1mA RMIN R Reverse Breakdown Voltage LM4040D 0.3 1.2 Change with Operating mV LM4040A/B/C 2.5 8.0 Current Change 1mA I 15mA R LM4040D 2.5 10.0 LM4040A/B 0.3 0.8 Reverse Dynamic I = 1mA, f = 120Hz, R Z LM4040C 0.3 0.9 R Impedance (Note 3) I = 0.1I AC R LM4040D 0.3 1.1 Wideband Noise e I = 100A, 10Hz f 10kHz 28 V N R RMS Reverse Breakdown Voltage V T = 1000h 120 ppm R Long-Term Stability 2 Maxim Integrated