19-2563; Rev 2; 4/04 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages Features The LM4050/LM4051 are precision two-terminal, shuntmode, bandgap voltage references available in fixed reverse breakdown voltages of 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V. Ideal for space-critical applications, the LM4050/LM4051 are offered in the subminiature 3-pin SC70 surface-mount packages (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount package (SOT23 versions are also available). 50ppm/C (max) Temperature Coefficient Guaranteed over the -40C to +125C Temperature Range Laser-trimmed resistors ensure excellent initial accuracy. With a 50ppm/C temperature coefficient, these devices are offered in three grades of initial accuracy ranging from 0.1% to 0.5%. The LM4050/LM4051 have a 60A to 15mA shunt-current capability with low dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents. The LM4050/LM4051 do not require an external stabilizing capacitor while ensuring stability with any capacitive loads. The LM4050/LM4051 specifications are guaranteed over the temperature range of -40C to +125C. 1.225V, 2.048V, 2.500V, 3.000V, 3.3V, 4.096V, and 5.000V Fixed Reverse Breakdown Voltages ________________________Applications Portable, Battery-Powered Equipment Notebook Computers Ultra-Small 3-Pin SC70 Package 0.1% (max) Initial Accuracy Wide Operating Current Range: 60A to 15mA Low 28VRMS Output Noise (10Hz to 10kHz) No Output Capacitors Required Tolerates Capacitive Loads Selector Guide PART TEMP RANGE OUTPUT PINVOLTAGE PACKAGE (V) LM4050_IM3-2.1 -40C to +125C 3 SOT23-3 2.048 LM4050_IX3-2.1 -40C to +125C 3 SC70-3 2.048 LM4050_IM3-2.5 -40C to +125C 3 SOT23-3 2.500 LM4050_IX3-2.5 -40C to +125C 3 SC70-3 2.500 LM4050_IM3-3.0 -40C to +125C 3 SOT23-3 3.000 LM4050_IX3-3.0 -40C to +125C 3 SC70-3 3.000 Cell Phones LM4050_EX3-3.3 -40C to +125C 3 SC70-3 3.300 Industrial Process Controls LM4050_IM3-4.1 -40C to +125C 3 SOT23-3 4.096 LM4050_IX3-4.1 -40C to +125C 3 SC70-3 4.096 LM4050_IM3-5.0 -40C to +125C 3 SOT23-3 5.000 LM4050_IX3-5.0 -40C to +125C 3 SC70-3 5.000 LM4051_IM3-1.2 -40C to +125C 3 SOT23-3 1.225 LM4051_IX3-1.2 -40C to +125C 3 SC70-3 1.225 Typical Operating Circuit Ordering Information appears at end of data sheet. VS Pin Configuration ISHUNT + ILOAD RS TOP VIEW ILOAD VR + 1 LM4050/ LM4051 ISHUNT LM4050/LM4051 3 N.C.* - 2 SC70-3/SOT23-3 *PIN 3 MUST BE LEFT FLOATING OR CONNECTED TO PIN 2. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. 1 LM4050/LM4051 General Description LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages ABSOLUTE MAXIMUM RATINGS Reverse Current (cathode to anode) ..................................20mA Forward Current (anode to cathode) ..................................10mA Continuous Power Dissipation (TA = +70C) 3-Pin SC70 (derate 2.17mW/C above +70C) ............174mW 3-Pin SOT23 (derate 4.01mW/C above +70C)..........320mW Operating Temperature Range LM4050/LM4051_I_ _ _..................................-40C to +125C Storage Temperature Range .............................-65C to +150C Junction Temperature ......................................................+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--1.225V (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage SYMBOL VR Reverse Breakdown Voltage Tolerance (Note 2) VRTOL Minimum Operating Current IRMIN Average Reverse Voltage Temperature Coefficient (Notes 2, 3) VR/T Reverse Breakdown Voltage Change with Operating Current Change TA = +25C MIN TYP MAX LM4051A (0.1%) 1.2238 1.2250 1.2262 LM4051B (0.2%) 1.2226 1.2250 1.2275 LM4051C (0.5%) 1.2189 UNITS V 1.2250 1.2311 LM4051A 1.2 7 LM4051B 2.4 9 LM4051C 6.0 12 45 60 A IR = 10mA IR = 1mA 20 15 50 ppm/C IR = 100A 15 IRMIN IR 1mA 0.7 1.5 1mA IR 12mA 2.5 8.0 1.5 mV mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR 0.5 Wideband Noise eN IR = 100A, 10Hz f 10kHz 20 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability 2 CONDITIONS VR _______________________________________________________________________________________ 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage SYMBOL VR Reverse Breakdown Voltage Tolerance (Note 2) VRTOL Minimum Operating Current IRMIN Average Reverse Voltage Temperature Coefficient (Notes 2, 3) VR/T Reverse Breakdown Voltage Change with Operating Current Change CONDITIONS TA = +25C MIN TYP MAX LM4050A (0.1%) 2.0460 2.0480 2.0500 LM4050B (0.2%) 2.0439 2.0480 2.0521 LM4050C (0.5%) 2.0378 UNITS V 2.0480 2.0582 LM4050A 2.0 12 LM4050B 4.0 14 LM4050C 10 20 45 65 A IR = 10mA IR = 1mA 20 15 50 ppm/C IR = 100A 15 IRMIN IR 1mA 0.3 1.0 1mA IR 15mA 2.5 8.0 mV mV LM4050A/B 0.3 0.8 LM4050C 0.3 0.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100A, 10Hz f 10kHz 28 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability VR _______________________________________________________________________________________ 3 LM4050/LM4051 ELECTRICAL CHARACTERISTICS--2.048V LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages ELECTRICAL CHARACTERISTICS--2.500V (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2, 3) SYMBOL VR VRTOL MIN TYP MAX LM4050A (0.1%) 2.4975 2.5000 2.5025 LM4050B (0.2%) 2.4950 2.5000 2.5050 LM4050C (0.5%) 2.4875 2.5000 2.5125 LM4050A 2.5 15 LM4050B 5.0 18 LM4050C 13 25 45 65 A IR = 10mA 20 IR = 1mA 15 50 ppm/C IR = 100A 15 IRMIN IR 1mA 0.3 1.0 1mA IR 15mA 2.5 8.0 LM4050A/B 0.3 0.8 LM4050C 0.3 0.9 TA = +25C IRMIN VR/T Reverse Breakdown Voltage Change with Operating Current Change UNITS V mV mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100A, 10Hz f 10kHz 35 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability 4 CONDITIONS VR _______________________________________________________________________________________ 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2, 3) SYMBOL VR VRTOL CONDITIONS MIN TYP MAX LM4050A (0.1%) 2.9970 3.0000 3.0030 LM4050B (0.2%) 2.9940 3.0000 3.0060 LM4050C (0.5%) 2.9850 3.0000 3.0150 LM4050A 3.0 18 LM4050B 6.0 21 LM4050C 15 30 45 67 A 50 ppm/C TA = +25C IRMIN VR/T Reverse Breakdown Voltage Change with Operating Current Change IR = 10mA 20 IR = 1mA 15 IR = 100A 15 IRMIN IR 1mA 0.3 1.0 1mA IR 15mA 2.5 8.0 LM4050A/B 0.3 0.8 LM4050C 0.3 0.9 UNITS V mV mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100A, 10Hz f 10kHz 45 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability VR ELECTRICAL CHARACTERISTICS--3.300V (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2, 3) SYMBOL VR VRTOL CONDITIONS MIN TYP MAX LM4050A (0.1%) 3.2967 3.3000 3.3033 LM4050B (0.2%) 3.2934 3.3000 3.3066 LM4050C (0.5%) 3.2835 3.3000 3.3165 LM4050A 3.0 18 LM4050B 6.0 21 LM4050C 15 30 45 67 A IR = 10mA 20 IR = 1mA 15 50 ppm/C IR = 100A 15 IRMIN IR 1mA 0.3 1.0 1mA IR 15mA 2.5 8.0 TA = +25C IRMIN VR/T Reverse Breakdown Voltage Change with Operating Current Change UNITS V mV mV LM4050A/B 0.3 0.8 LM4050C 0.3 0.9 Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR Wideband Noise eN IR = 100A, 10Hz f 10kHz 50 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability VR _______________________________________________________________________________________ 5 LM4050/LM4051 ELECTRICAL CHARACTERISTICS--3.000V LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages ELECTRICAL CHARACTERISTICS--4.096V (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage SYMBOL VR Reverse Breakdown Voltage Tolerance (Note 2) VRTOL Minimum Operating Current IRMIN Average Reverse Voltage Temperature Coefficient (Notes 2, 3) VR/T Reverse Breakdown Voltage Change with Operating Current Change TA = +25C MIN TYP MAX LM4050A (0.1%) 4.0919 4.0960 4.1001 LM4050B (0.2%) 4.0878 4.0960 4.1042 LM4050C (0.5%) 4.0755 UNITS V 4.0960 4.1165 LM4050A 4.1 25 LM4050B 8.2 29 LM4050C 20 41 50 73 A 50 ppm/C IR = 10mA 30 IR = 1mA 20 IR = 100A 15 IRMIN IR 1mA 0.5 1.2 1mA IR 15mA 3.0 10.0 1.0 mV mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR 0.5 Wideband Noise eN IR = 100A, 10Hz f 10kHz 64 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability 6 CONDITIONS VR _______________________________________________________________________________________ 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages (IR = 100A, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25C.) (Note 1) PARAMETER Reverse Breakdown Voltage Reverse Breakdown Voltage Tolerance (Note 2) Minimum Operating Current Average Reverse Voltage Temperature Coefficient (Notes 2, 3) SYMBOL VR VRTOL CONDITIONS MIN TYP MAX LM4050A (0.1%) 4.9950 5.0000 5.0050 LM4050B (0.2%) 4.9900 5.0000 5.0100 LM4050C (0.5%) 4.9750 5.0000 5.0250 LM4050A 5.0 30 LM4050B 10 35 LM4050C 25 50 54 80 A IR = 10mA 30 IR = 1mA 20 50 ppm/C IR = 100A 15 IRMIN IR 1mA 0.5 1.4 1mA IR 15mA 3.5 12.0 1.1 TA = +25C IRMIN VR/T Reverse Breakdown Voltage Change with Operating Current Change UNITS V mV mV Reverse Dynamic Impedance (Note 3) ZR IR = 1mA, f = 120Hz, IAC = 0.1IR 0.5 Wideband Noise eN IR = 100A, 10Hz f 10kHz 80 VRMS T = 1000h 120 ppm Reverse Breakdown Voltage Long-Term Stability VR Note 1: All devices are 100% production tested at +25C and are guaranteed by design for TA = TMIN to TMAX, as specified. Note 2: The limit over the full temperature range for the reverse breakdown voltage tolerance is defined as: [VRTOL] [(VR / T) X (maxT) X (VR)] where VR / T is the VR temperature coefficient, maxT is the difference from the +25C reference point to TMIN or TMAX, and VR is the reverse breakdown voltage. The total tolerance over the full temperature range for the different grades where maxT = +100C is shown below: * A grade: 0.6% = 0.1% 50ppm/C 100C * B grade: 0.7% = 0.2% 50ppm/C 100C * C grade: 1.0% = 0.5% 50ppm/C 100C Note 3: Guaranteed by design. _______________________________________________________________________________________ 7 LM4050/LM4051 ELECTRICAL CHARACTERISTICS--5.000V Typical Operating Characteristics (IR = 100A, SC70-3 package, TA = +25C, unless otherwise noted.) REVERSE CHARACTERISTICS AND MINIMUM OPERATING CURRENT 4 LM4050_I_3-3.0 3 2 5.001 2.496 2.494 2.492 LM4050_I_3-2.5 4.995 4.993 4.989 0 2.490 50 100 4.987 -15 -40 REVERSE CURRENT (A) 10 35 60 85 110 135 -15 -40 10 TEMPERATURE (C) TA = -40C TA = +25C TA = +85C 2 1 6 REVERSE VOLTAGE CHANGE (mV) LM4050 toc04 TA = +125C 3 60 LM4050-5.0V REVERSE VOLTAGE vs. ISHUNT 5 4 35 TA = -40C 5 4 TA = +125C 3 TA = +85C 2 1 TA = +25C 0 0 0 5 10 ISHUNT (mA) 8 15 20 85 TEMPERATURE (C) LM4050-2.5V REVERSE VOLTAGE vs. ISHUNT REVERSE VOLTAGE CHANGE (mV) 4.997 4.991 LM4050_I_3-2.1 0 4.999 LM4050 toc05 1 5.003 OUTPUT VOLTAGE (V) OUTPUT VOLTAGE (V) 5 MAX4050 toc03 2.498 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 5.000V) MAX4050 toc02 LM4050_I_3-5.0 LM4050_I_3-4.1 OUTPUT VOLTAGE vs. TEMPERATURE (VOUT = 2.500V) LM4050 toc01 6 REVERSE VOLTAGE (V) LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages 0 5 10 15 ISHUNT (mA) _______________________________________________________________________________________ 20 110 135 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages LM4050-2.5V LOAD-TRANSIENT RESPONSE LM4050-2.5V LOAD-TRANSIENT RESPONSE LM4050-5.0V LOAD-TRANSIENT RESPONSE LM4050 toc06 LM4050 toc08 LM4050 toc07 VGEN ISHUNT = 1mA 250A RL = 10k, SEE FIGURE 1. ISHUNT = 100A 25A RL = 100k, SEE FIGURE 1. LM4050-2.5V LOAD-TRANSIENT RESPONSE LM4050-5.0V LOAD-TRANSIENT RESPONSE 10mV/div 10s/div 40s/div CH1: VGEN 2V/div CH2: VR AC-COUPLED 2mV/div ISHUNT = 100A 25A, RL = 100k, SEE FIGURE 1. LM4050-5.0V LOAD-TRANSIENT RESPONSE LM4050 toc10 LM4050 toc09 LM4050 toc11 +2.5mA VGEN -2.5mA VR AC-COUPLED -250A 10mV/div +2.5mA 20mV/div 10s/div 10s/div -2.5mA VR AC-COUPLED VGEN VGEN +250A VR AC-COUPLED VR AC-COUPLED 10mV/div 10s/div ISHUNT = 1mA 250A RL = 10k, SEE FIGURE 1. -250A -25A VR AC-COUPLED VR AC-COUPLED -25A 2mV/div +250A +25A VGEN VGEN +25A 20mV/div 10s/div ISHUNT = 10mA 2.5mA RL = 1k, SEE FIGURE 1. ISHUNT = 10mA 2.5mA RL = 1k, SEE FIGURE 1. ISHUNT VB 1k + - RL VR VGEN Figure 1. Load-Transient Test Circuit _______________________________________________________________________________________ 9 LM4050/LM4051 Typical Operating Characteristics (continued) (IR = 100A, SC70-3 package, TA = +25C, unless otherwise noted.) Typical Operating Characteristics (continued) (IR = 100A, SC70-3 package, TA = +25C, unless otherwise noted.) LM4050-5.0V STARTUP CHARACTERISTICS LM4050 toc12 5V 1000 5V VIN VIN C1 = 1F 0 2V 4V 1V 0 100 IMPEDANCE () 0 VOUT VOUT LM4050-2.5V OUTPUT IMPEDANCE vs. FREQUENCY LM4050 toc13 LM4050 toc14 LM4050-2.5V STARTUP CHARACTERISTICS 2V 0 IR = 150A 10 C1 = 0 1 IR = 1mA RS = 30k RS = 16k 4 8 12 16 20 24 28 32 36 0 RESPONSE TIME (s) SEE FIGURE 2. 1k 10k 100k FREQUENCY (Hz) LM4050-2.5V NOISE vs. FREQUENCY LM4050-5.0V NOISE vs. FREQUENCY NOISE (nV/Hz) IR = 150A 10,000 IR = 1mA 10,000 NOISE (nV/Hz) C1 = 0 LM4050 toc16 LM4050 toc15 100 1 0.1k RESPONSE TIME (s) 1M SEE FIGURE 2. LM4050-5.0V OUTPUT IMPEDANCE vs. FREQUENCY 10 0.1 10 20 30 40 50 60 70 80 90 1000 LM4050 toc17 0 IMPEDANCE () LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages 1000 C1 = 1F 0.1 100 0.1k 1k 10k 100k 1M 100 1 FREQUENCY (Hz) 10 100 1k 10k FREQUENCY (Hz) 1 10 100 FREQUENCY (Hz) RS VIN 1Hz RATE 50% DUTY CYCLE VR Figure 2. Startup Characteristics Test Circuit 10 ______________________________________________________________________________________ 1k 10k 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages PIN NAME FUNCTION 1 + Positive Terminal of the Shunt Reference 2 - Negative Terminal of the Shunt Reference 3 N.C. No connection. Leave this pin unconnected or connected to pin 2. Detailed Description The LM4050/LM4051 shunt references use the bandgap principle to produce a stable, accurate voltage. The device behaves similarly to an ideal zener diode; a fixed voltage is maintained across its output terminals when biased with 60A to 15mA of reverse current. The LM4050/LM4051 clamps to a voltage of one diode drop below ground when biased with forward currents up 10mA. Figure 3 shows a typical operating circuit. The LM4050/LM4051 are ideal for providing stable references from a high-voltage power supply. VS ISHUNT + ILOAD RS ILOAD VR ISHUNT LM4050/LM4051 Figure 3. Typical Operating Circuit Applications Information The LM4050/LM4051s' internal pass transistors are used to maintain a constant output voltage (VSHUNT) by sinking the necessary amount of current across a source resistor. The source resistance (RS) is determined from the load current (ILOAD) range, supply voltage (VS) variations, VSHUNT, and desired quiescent current. Choose the value of RS when VS is at a minimum and ILOAD is at a maximum. Maintain a minimum ISHUNT of 60A at all times. The RS value should be large enough to keep ISHUNT less than 15mA for proper regulation when VS is maximum and ILOAD is at a minimum. To prevent damage to the device, ISHUNT should never exceed 20mA. Therefore, the value of RS is bounded by the following equation: [VS(MIN) - VR ] / [60A + ILOAD(MAX)] > RS > [VS(MAX) - VR ] / [20mA + ILOAD(MIN)] Choosing a larger resistance minimizes the total power dissipation in the circuit by reducing the shunt current (PD(TOTAL) = VS ISHUNT). Provide a safety margin to incorporate the worst-case tolerance of the resistor used. Ensure that the resistor's power rating is adequate, using the following general power equation: PDR = ISHUNT (VS(MAX) - VSHUNT) Temperature Performance The LM4050/LM4051 typically exhibit output voltage temperature coefficients within 15ppm/C. The polarity of the temperature coefficients may be different from one device to another; some may have positive coefficients, and others may have negative coefficients. High Temperature Operation The maximum junction temperature of the LM4050/ LM4051 is +150C. The maximum operating temperature for the LM4050/LM4051_E_ is +125C. At a maximum load current of 15mA and a maximum output voltage of 5V, the parts dissipate 75mW of power. The power dissipation limits of the 3-pin SC70 call for a derating value of 2.17mW/C above +70C and thus for 75mW of power dissipation, the parts self-heat to 35.56C above ambient temperature. If the ambient temperature is +125C, the parts operate at 159.56C, thereby exceeding the maximum junction temperature value of +150C. For hightemperature operation, care must be taken to ensure the combination of ambient temperature, output power dissipation, and package thermal resistance does not conspire to raise the device temperature beyond that listed in the Absolute Maximum Ratings. Either reduce the output load current or the ambient temperature to keep the part within the limits. Output Capacitance The LM4050/LM4051 do not require external capacitors for frequency stability and are stable for any output capacitance. Chip Information TRANSISTOR COUNT: 60 PROCESS: BiCMOS ______________________________________________________________________________________ 11 LM4050/LM4051 Pin Description LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages Ordering Information OUTPUT VOLTAGE (V) INITIAL ACCURACY (%) TEMPCO (ppm/C) TEMP RANGE LM4050AIM3-2.1-T 2.048 0.1 50 LM4050AIX3-2.1-T 2.048 0.1 50 LM4050BIM3-2.1-T 2.048 0.2 LM4050BIX3-2.1-T 2.048 LM4050CIM3-2.1-T 2.048 LM4050CIX3-2.1-T LM4050AIM3-2.5-T PIN-PACKAGE TOP MARK -40C to +125C 3 SOT23-3 FZLN -40C to +125C 3 SC70-3 50 -40C to +125C 3 SOT23-3 0.2 50 -40C to +125C 3 SC70-3 AJY 0.5 50 -40C to +125C 3 SOT23-3 FZLP 2.048 0.5 50 -40C to +125C 3 SC70-3 AJZ 2.500 0.1 50 -40C to +125C 3 SOT23-3 FZLR LM4050AIX3-2.5-T 2.500 0.1 50 -40C to +125C 3 SC70-3 AKB LM4050BIM3-2.5-T 2.500 0.2 50 -40C to +125C 3 SOT23-3 FZLS LM4050BIX3-2.5-T 2.500 0.2 50 -40C to +125C 3 SC70-3 AKC FZLJ PART AJX FZLO LM4050CIM3-2.5-T 2.500 0.5 50 -40C to +125C 3 SOT23-3 LM4050CIX3-2.5-T 2.500 0.5 50 -40C to +125C 3 SC70-3 AKD LM4050AIM3-3.0-T 3.000 0.1 50 -40C to +125C 3 SOT23-3 FZLV LM4050AIX3-3.0-T 3.000 0.1 50 -40C to +125C 3 SC70-3 LM4050BIM3-3.0-T 3.000 0.2 50 -40C to +125C 3 SOT23-3 FZLW LM4050BIX3-3.0-T 3.000 0.2 50 -40C to +125C 3 SC70-3 AKG FZLX AKF LM4050CIM3-3.0-T 3.000 0.5 50 -40C to +125C 3 SOT23-3 LM4050CIX3-3.0-T 3.000 0.5 50 -40C to +125C 3 SC70-3 AKH LM4050AEX3-3.3-T 3.300 0.1 50 -40C to +125C 3 SC70-3 AOC LM4050BEX3-3.3-T 3.300 0.2 50 -40C to +125C 3 SC70-3 AOD LM4050CEX3-3.3-T 3.300 0.5 50 -40C to +125C 3 SC70-3 AOE LM4050AIM3-4.1-T 4.096 0.1 50 -40C to +125C 3 SOT23-3 FZLZ LM4050AIX3-4.1-T 4.096 0.1 50 -40C to +125C 3 SC70-3 LM4050BIM3-4.1-T 4.096 0.2 50 -40C to +125C 3 SOT23-3 LM4050BIX3-4.1-T 4.096 0.2 50 -40C to +125C 3 SC70-3 AKJ FZMA AKK LM4050CIM3-4.1-T 4.096 0.5 50 -40C to +125C 3 SOT23-3 LM4050CIX3-4.1-T 4.096 0.5 50 -40C to +125C 3 SC70-3 FZMB LM4050AIM3-5.0-T 5.000 0.1 50 -40C to +125C 3 SOT23-3 LM4050AIX3-5.0-T 5.000 0.1 50 -40C to +125C 3 SC70-3 AKN FZME AKL FZMD LM4050BIM3-5.0-T 5.000 0.2 50 -40C to +125C 3 SOT23-3 LM4050BIX3-5.0-T 5.000 0.2 50 -40C to +125C 3 SC70-3 AKO LM4050CIM3-5.0-T 5.000 0.5 50 -40C to +125C 3 SOT23-3 FZOA LM4050CIX3-5.0-T 5.000 0.5 50 -40C to +125C 3 SC70-3 AKP LM4051AIM3-1.2-T 1.225 0.1 50 -40C to +125C 3 SOT23-3 FZLJ LM4051AIX3-1.2-T 1.225 0.1 50 -40C to +125C 3 SC70-3 LM4051BIM3-1.2-T 1.225 0.2 50 -40C to +125C 3 SOT23-3 FZLK LM4051BIX3-1.2-T 1.225 0.2 50 -40C to +125C 3 SC70-3 AJU LM4051CIM3-1.2-T 1.225 0.5 50 -40C to +125C 3 SOT23-3 FZLL LM4051CIX3-1.2-T 1.225 0.5 50 -40C to +125C 3 SC70-3 AJV 12 ______________________________________________________________________________________ AJT 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages SOTPO3L.EPS ______________________________________________________________________________________ 13 LM4050/LM4051 Package Information (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) Package Information (continued) (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information, go to www.maxim-ic.com/packages.) SC70, 3L.EPS LM4050/LM4051 50ppm/C Precision Micropower Shunt Voltage References with Multiple Reverse Breakdown Voltages 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. 14 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.