19-2507; Rev 2; 3/05 Ultra-Low-Power Series Voltage ReferenceMAX6129General DescriptionFeatures The MAX6129 micropower, low-dropout bandgap volt- ♦ Ultra-Low 5.25µA (max) Supply Current 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- ♦ rable devices in an SO package. This series-mode volt- ±0.4% (max) Initial Accuracy age reference sources up to 4mA and sinks up to 1mA ♦ 40ppm/°C (max) Temperature Coefficient of load current. A wide 2.5V to 12.6V supply range, ♦ 2.5V to 12.6V Supply Range ultra-low 5.25µA (max) supply current, and a low ♦ Low 200mV Dropout 200mV dropout voltage make these devices ideal for ♦ Stable with Capacitive Loads Up to 10µF battery-operated systems. ♦ No External Capacitors Required An initial accuracy of 0.4% and a 40ppm/°C (max) tem- perature coefficient make the MAX6129 suitable for ♦ Miniature 5-Pin SOT23 Package 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 TPU T capacitances up to 10µF. PIN -PA R TTEMP RANGEVO LT A G EPA C K A G E The MAX6129 provides six output voltages of 2.048V, ( V) 2.5V, 3V, 3.3V, 4.096V, and 5V. The MAX6129 is avail- M AX 6129_E U K21- T -40°C to +85°C 5 SOT23-5 2.048 able in a 5-pin SOT23 package and in die form. M AX 6129AC /D 21 -40°C to +85°C Dice 2.048 M AX 6129_E U K25- T -40°C to +85°C 5 SOT23-5 2.500 M AX 6129AC /D 25 -40°C to +85°C Dice 2.500 M AX 6129_E U K30- T -40°C to +85°C 5 SOT23-5 3.000 Applications M AX 6129AC /D 30 -40°C to +85°C Dice 3.000 Battery-Powered Systems M AX 6129_E U K33- T -40°C to +85°C 5 SOT23-5 3.300 Handheld Instruments M AX 6129AC /D 33 -40°C to +85°C Dice 3.300 Precision Power Supplies M AX 6129_E U K41- T -40°C to +85°C 5 SOT23-5 4.096 A/D and D/A Converters M AX 6129AC /D 41 -40°C to +85°C Dice 4.096 M AX 6129_E U K50- T -40°C to +85°C 5 SOT23-5 5.000 M AX 6129AC /D 50 -40°C to +70°C 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 CircuitSelector Guide appears at end of data sheet. VIN = 2.5V TO 12.6V Pin Configuration * TOP VIEW IN IN 1 5 OUT MAX6129 MAX6129 GND 2 OUT GND N.C. 3 4 N.C. SOT23 *CAPACITOR IS OPTIONAL ________________________________________________________________ Maxim Integrated Products1For 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.