Datasheet LTC3121 (Analog Devices) - 2

LTC3121
absoluTe MaxiMuM raTings pin conFiguraTion (Note 1)
VIN Voltage .. –0.3V to 6V VOUT Voltage .. –0.3V to 18V TOP VIEW SW Voltage (Note 2) .. –0.3V to 18V SW 1 12 CAP SW Voltage (Pulsed < 100ns) (Note 2) ... –0.3V to 19V PGND 2 11 VOUT VC, RT Voltage .. –0.3V to VCC VIN 3 10 13 SGND CAP Voltage PGND PWM/SYNC 4 9 SD VOUT < 5.7V ..–0.3V to (VOUT + 0.3V) VCC 5 8 FB 5.7V ≤ VOUT ≤ 11.7V..(VOUT – 6V) to (VOUT + 0.3V) RT 6 7 VC VOUT > 11.7V ...(VOUT – 6V) to 12V DE PACKAGE All Other Pins ... –0.3V to 6V 12-LEAD (4mm × 3mm) PLASTIC DFN Operating Junction Temperature Range TJMAX = 125°C, θJA = 43°C/W (NOTE 5), θJC = 5°C/W EXPOSED PAD (PIN 13) IS PGND, (Notes 3, 4) .. –40°C to 125°C MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE Storage Temperature Range .. –65°C to 150°C
orDer inForMaTion http://www.linear.com/product/LTC3121#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3121EDE#PBF LTC3121EDE#TRPBF 3121 12-Lead (4mm × 3mm) Plastic DFN –40°C to 125°C LTC3121IDE#PBF LTC3121IDE#TRPBF 3121 12-Lead (4mm × 3mm) Plastic DFN –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 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/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 3121fa 2 For more information www.linear.com/LTC3121 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Package Description Typical Application Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Low Voltage Operation Low Noise Fixed Frequency Operation Burst Mode Operation Applications Information PCB Layout Guidelines Schottky Diode Component Selection Operating Frequency Selection Typical Applications Package Description Revision History Typical Application Related Parts