MAX6129 19-2507 Rev 2 3/05 Ultra-Low-Power Series Voltage Reference General Description Features Ultra-Low 5.25A (max) Supply Current The MAX6129 micropower, low-dropout bandgap volt- age reference combines ultra-low supply current and 4mA Output Source Current low drift in a miniature 5-pin SOT23 surface-mount 1mA Output Sink Current package that uses 70% less board space than compa- 0.4% (max) Initial Accuracy rable devices in an SO package. This series-mode volt- 40ppm/C (max) Temperature Coefficient age reference sources up to 4mA and sinks up to 1mA of load current. A wide 2.5V to 12.6V supply range, 2.5V to 12.6V Supply Range ultra-low 5.25A (max) supply current, and a low Low 200mV Dropout 200mV dropout voltage make these devices ideal for Stable with Capacitive Loads Up to 10F battery-operated systems. No External Capacitors Required An initial accuracy of 0.4% and a 40ppm/C (max) tem- Miniature 5-Pin SOT23 Package perature coefficient make the MAX6129 suitable for precision applications. Additionally, an internal com- Ordering Information pensation capacitor eliminates the need for an external compensation capacitor and ensures stability with load O U TPUT PIN- capacitances up to 10F. VOLT A G E PAR T TEMP RANGE PAC K A G E ( V) The MAX6129 provides six output voltages of 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6129 is avail- M AX 6129 E U K21-T -40C to +85C 5 SOT23-5 2.048 able in a 5-pin SOT23 package and in die form. M AX6129A C /D21 -40C to +85C Dice 2.048 M AX6129 E U K25-T -40C to +85C 5 SOT23-5 2.500 M AX 6129AC /D25 -40C to +85C Dice 2.500 M AX 6129 E U K30-T -40C to +85C 5 SOT23-5 3.000 Applications M AX6129A C /D30 -40C to +85C Dice 3.000 Battery-Powered Systems M AX6129 E U K33-T -40C to +85C 5 SOT23-5 3.300 M AX 6129AC /D33 -40C to +85C Dice 3.300 Handheld Instruments M AX 6129 E U K41-T -40C to +85C 5 SOT23-5 4.096 Precision Power Supplies M AX 6129AC /D41 -40C to +85C Dice 4.096 A/D and D/A Converters M AX 6129 E U K50-T -40C to +85C 5 SOT23-5 5.000 M AX 6129AC /D50 -40C to +70C Dice 5.000 Note: The MAX6129 EUK is available in A or B grade. Choose the desired grade from the Selector Guide and insert the suffix in the blank above to complete the part number. Typical Operating Circuit Selector Guide appears at end of data sheet. V = 2.5V TO 12.6V IN Pin Configuration * TOP VIEW IN IN 15 OUT MAX6129 MAX6129 GND 2 OUT GND N.C.34 N.C. SOT23 *CAPACITOR IS OPTIONAL Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Ultra-Low-Power Series Voltage Reference ABSOLUTE MAXIMUM RATINGS IN to GND...............................................................-0.3V to +13V Operating Temperature Range ...........................-40C to +85C OUT to GND ..............-0.3V to the lower of +6V and (V + 0.3V) Storage Temperature Range .............................-65C to +150C IN Output to GND Short-Circuit Duration........................Continuous Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (T = +70C) A 5-Pin SOT23 (derate 7.1mW/C above +70C)............571mW 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 CHARACTERISTICSMAX6129 21 (V = 2.048V) OUT (V = 2.5V, I = 0, T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 1) IN OUT A MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS OUTPUT MAX6129A (0.4%) 2.0398 2.0480 2.0562 Output Voltage V T = +25C V OUT A MAX6129B (1%) 2.0275 2.0480 2.0685 MAX6129A 40 Output Voltage Temperature TCV ppm/C OUT Coefficient (Notes 2, 3) MAX6129B 100 Line Regulation (Note 4) V / V V = 2.5V to 12.6V 27 200 V/V OUT IN IN I = 0 to 4mA 0.22 0.7 OUT V / OUT Load Regulation (Note 4) V/A I OUT I = 0 to -1mA 2.4 5.5 OUT Output Short-Circuit Current I 60 mA SC Long-Term Stability V /time 1000 hours at +25C 150 ppm OUT Thermal Hysteresis (Note 5) 140 ppm DYNAMIC CHARACTERISTICS f = 0.1Hz to 10Hz 30 V P-P Noise Voltage e OUT f = 10Hz to 1kHz 115 V RMS Ripple Rejection V / V V = 2.5V 200mV, f = 120Hz 43 dB OUT IN IN Turn-On Settling Time t To V = 0.1% of final value 450 s R OUT INPUT Supply Voltage Range V 2.5 12.6 V IN Supply Current I 5.25 A IN Change in Supply Current I /V V = 2.5V to 12.6V 1.0 1.5 A/V IN IN IN (Note 4) 2 MAX6129