LT1121/LT1121-3.3/LT1121-5 ORDER INFORMATION LEAD FREE FINISHTAPE AND REELPART MARKINGPACKAGE DESCRIPTIONTEMPERATURE RANGE LT1121AHVCS8#PBF LT1121AHVCS8#TRPBF 121AHV 8-Lead Plastic S0 0°C to 125°C LT1121AIS8#PBF LT1121AIS8#TRPBF 121AI 8-Lead Plastic S0 –40°C to 125°C LT1121AIS8-3.3#PBF LT1121AIS8-3.3#TRPBF 121AI3 8-Lead Plastic S0 –40°C to 125°C LT1121AIS8-5#PBF LT1121AIS8-5#TRPBF 121AI5 8-Lead Plastic S0 –40°C to 125°C LT1121AHVIS8#PBF LT1121AHVIS8#TRPBF 21AHVI 8-Lead Plastic S0 –40°C to 125°C LT1121CST-3.3#PBF LT1121CST-3.3#TRPBF 11213 3-Lead Plastic SOT-223 0°C to 125°C LT1121IST-3.3#PBF LT1121IST-3.3#TRPBF 121I3 3-Lead Plastic SOT-223 –40°C to 125°C LT1121CST-5#PBF LT1121CST-5#TRPBF 11215 3-Lead Plastic SOT-223 0°C to 125°C LT1121IST-5#PBF LT1121IST-5#TRPBF 1121I5 3-Lead Plastic SOT-223 –40°C to 125°C LT1121CZ3-3#PBF LT1121CZ3-3#TRPBF LT1121CZ3-3 3-Lead Plastic TO-92 0°C to 125°C LT1121IZ3-3#PBF LT1121IZ3-3#TRPBF LT1121IZ3-3 3-Lead Plastic TO-92 –40°C to 125°C LT1121CZ-5#PBF LT1121CZ-5#TRPBF LT1121CZ-5 3-Lead Plastic TO-92 0°C to 125°C LT1121IZ-5#PBF LT1121IZ-5#TRPBF LT1121IZ-5 3-Lead Plastic TO-92 –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on nonstandard lead based finish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ ELECTRICALCHARACTERISTICS The l denotes the specifications which apply over the full operatingtemperature range, otherwise specifications are at TA = 25°C. PARAMETERCONDITIONSMINTYPMAXUNITS Regulated Output Voltage (Note 4) LT1121-3.3 VIN = 3.8V, IOUT = 1mA, TJ = 25ºC 3.25 3.3 3.35 V 4.3V < VIN < 20V, 1mA < IOUT < 150mA l 3.2 3.3 3.4 V LT1121-5 VIN = 5.5V, IOUT = 1mA, TJ = 25ºC 4.925 5 5.075 V 6V < VIN < 20V, 1mA < IOUT < 150mA l 4.85 5 5.15 V LT1121 (Note 5) VIN = 4.3V, IOUT = 1mA, TJ = 25ºC 3.695 3.75 3.805 V 4.8V < VIN < 20V, 1mA < IOUT < 150mA l 3.64 3.75 3.86 V Line Regulation LT1121-3.3 ΔVIN = 4.8V TO 20V, IOUT = 1mA l 1.5 10 mV LT1121-5 ΔVIN = 5.5V TO 20V, IOUT = 1mA l 1.5 10 mV LT1121 (Note 5) ΔVIN = 4.3V TO 20V, IOUT = 1mA l 1.5 10 mV Load Regulation LT1121-3.3 ΔILOAD = 1mA to 150mA, TJ = 25ºC –12 –25 mV ΔILOAD = 1mA to 150mA l –20 –40 mV LT1121-5 ΔILOAD = 1mA to 150mA, TJ = 25ºC –17 –35 mV ΔILOAD = 1mA to 150mA l –28 –50 mV LT1121 (Note 5) ΔILOAD = 1mA to 150mA, TJ = 25ºC –12 –25 mV ΔILOAD = 1mA to 150mA l –18 –40 mV Dropout Voltage (Note 6) ILOAD = 1mA, TJ = 25ºC 0.13 0.16 V ILOAD = 1mA l 0.25 V ILOAD = 50mA, TJ = 25ºC 0.3 0.35 V ILOAD = 50mA l 0.5 V ILOAD = 100mA, TJ = 25ºC 0.37 0.45 V ILOAD = 100mA l 0.6 V ILOAD = 150mA, TJ = 25ºC 0.42 0.55 V ILOAD = 150mA l 0.7 V 1121fg 3 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Applications Information Package Description Revision History Related Parts