LT1461 Micropower Precision Low Dropout Series Voltage Reference Family FEATURES DESCRIPTION n Trimmed to High Accuracy: 0.04% Max The LT 1461 is a family of low dropout micropower band- n Low Drift: 3ppm/C Max gap references that combine very high accuracy and low n Low Supply Current: 50A Max drift with low supply current and high output drive. These n High Output Current: 50mA Min series references use advanced curvature compensation n Low Dropout Voltage: 300mV Max techniques to obtain low temperature coefficient and n Excellent Thermal Regulation trimmed precision thin-film resistors to achieve high n Power Shutdown output accuracy. The LT1461 family draws only 35A n Thermal Limiting of supply current, making them ideal for low power and n All Parts Guaranteed Functional from 40C to 125C portable applications, however their high 50mA output n Voltage Options: 2.5V, 3V, 3.3V, 4.096V and 5V drive makes them suitable for higher power requirements, n AEC-Q100 Qualified for Automotive Applications such as precision regulators. In low power applications, a dropout voltage of less than 300mV ensures maximum battery life while maintaining APPLICATIONS full reference performance. Line regulation is nearly im- n A/D and D/A Converters measurable, while the exceedingly good load and ther- n Precision Regulators mal regulation will not add significantly to system error n Handheld Instruments budgets. The shutdown feature can be used to switch full n Power Supplies load currents and can be used for system power down. Thermal shutdown protects the part from overload condi- tions. The LT1461 is available in 2.5V, 3V, 3.3V 4.096V and 5V options. All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATION Basic Connection LT1461-2.5 Load Regulation, P = 200mW DISS (V + 0.3V) V 20V OUT IN LT1461 V OUT 0mA C C IN L 1F 2F V OUT 1461 TA01 20mA V LOAD REG OUT 1mV/DIV 1461 TA02 10ms/DIV Rev. C 1 Document Feedback For more information www.analog.comLT1461 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW Input Voltage ............................................................20V Output Short-Circuit Duration .......................... Indefinite DNC* 1 8 DNC* Operating Temperature Range V 2 7 DNC* IN (Note 2) ............................................. 40C to 125C SHDN 3 6 V OUT Storage Temperature Range (Note 3) ..... 65C to 150C GND 4 5 DNC* Specified Temperature Range S8 PACKAGE 8-LEAD PLASTIC SO Commercial ............................................. 0C to 70C *DNC: DO NOT CONNECT Industrial .............................................40C to 85C T = 150C, = 190C/W JMAX JA (Note 3) High ................................................... 40C to 125C Lead Temperature (Soldering, 10 sec) ...................300C ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT1461ACS8-2.5 PBF LT1461ACS8-2.5 TRPBF 461A25 8-LEAD PLASTIC SO 0C to 70C LT1461ACS8-3 PBF LT1461ACS8-3 TRPBF 1461A3 8-LEAD PLASTIC SO 0C to 70C LT1461ACS8-3.3 PBF LT1461ACS8-3.3 TRPBF 461A33 8-LEAD PLASTIC SO 0C to 70C LT1461ACS8-4 PBF LT1461ACS8-4 TRPBF 1461A4 8-LEAD PLASTIC SO 0C to 70C LT1461ACS8-5 PBF LT1461ACS8-5 TRPBF 1461A5 8-LEAD PLASTIC SO 0C to 70C LT1461BCS8-2.5 PBF LT1461BCS8-2.5 TRPBF 461B25 8-LEAD PLASTIC SO 0C to 70C LT1461BCS8-3 PBF LT1461BCS8-3 TRPBF 1461B3 8-LEAD PLASTIC SO 0C to 70C LT1461BCS8-3.3 PBF LT1461BCS8-3.3 TRPBF 461B33 8-LEAD PLASTIC SO 0C to 70C LT1461BCS8-4 PBF LT1461BCS8-4 TRPBF 1461B4 8-LEAD PLASTIC SO 0C to 70C LT1461BCS8-5 PBF LT1461BCS8-5 TRPBF 1461B5 8-LEAD PLASTIC SO 0C to 70C LT1461CCS8-2.5 PBF LT1461CCS8-2.5 TRPBF 461C25 8-LEAD PLASTIC SO 0C to 70C LT1461CCS8-3 PBF LT1461CCS8-3 TRPBF 1461C3 8-LEAD PLASTIC SO 0C to 70C LT1461CCS8-3.3 PBF LT1461CCS8-3.3 TRPBF 461C33 8-LEAD PLASTIC SO 0C to 70C LT1461CCS8-4 PBF LT1461CCS8-4 TRPBF 1461C4 8-LEAD PLASTIC SO 0C to 70C LT1461CCS8-5 PBF LT1461CCS8-5 TRPBF 1461C5 8-LEAD PLASTIC SO 0C to 70C LT1461AIS8-2.5 PBF LT1461AIS8-2.5 TRPBF 61AI25 8-LEAD PLASTIC SO 40C to 85C LT1461AIS8-3 PBF LT1461AIS8-3 TRPBF 461AI3 8-LEAD PLASTIC SO 40C to 85C LT1461AIS8-3.3 PBF LT1461AIS8-3.3 TRPBF 61AI33 8-LEAD PLASTIC SO 40C to 85C LT1461AIS8-4 PBF LT1461AIS8-4 TRPBF 461AI4 8-LEAD PLASTIC SO 40C to 85C LT1461AIS8-5 PBF LT1461AIS8-5 TRPBF 461AI5 8-LEAD PLASTIC SO 40C to 85C LT1461BIS8-2.5 PBF LT1461BIS8-2.5 TRPBF 61BI25 8-LEAD PLASTIC SO 40C to 85C LT1461BIS8-3 PBF LT1461BIS8-3 TRPBF 461BI3 8-LEAD PLASTIC SO 40C to 85C LT1461BIS8-3.3 PBF LT1461BIS8-3.3 TRPBF 61BI33 8-LEAD PLASTIC SO 40C to 85C LT1461BIS8-4 PBF LT1461BIS8-4 TRPBF 461BI4 8-LEAD PLASTIC SO 40C to 85C LT1461BIS8-5 PBF LT1461BIS8-5 TRPBF 461BI5 8-LEAD PLASTIC SO 40C to 85C LT1461CIS8-2.5 PBF LT1461CIS8-2.5 TRPBF 61CI25 8-LEAD PLASTIC SO 40C to 85C LT1461CIS8-3 PBF LT1461CIS8-3 TRPBF 461CI3 8-LEAD PLASTIC SO 40C to 85C LT1461CIS8-3.3 PBF LT1461CIS8-3.3 TRPBF 61CI33 8-LEAD PLASTIC SO 40C to 85C Rev. C 2 For more information www.analog.com