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LTC4268IDKD-1 Datasheet(PDF) 2 Page - Linear Technology |
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LTC4268IDKD-1 Datasheet(HTML) 2 Page - Linear Technology |
2 / 48 page LTC4268-1 2 42681fa PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS VPORTN Voltage .......................................... 0.3V to –90V VNEG Voltage ...................VPORTN + 90V to VPORTN –0.3V VCC to GND Voltage (Note 3) Low Impedance Source ......................... –0.3V to 18V Current Fed ..........................................30mA into VCC RCLASS, ILIM_EN Voltage ...VPORTN + 7V to VPORTN – 0.3V SHDN Voltage ................VPORTN + 90V to VPORTN – 0.3V PWRGD Voltage (Note 3) Low Impedance Source ....VNEG + 11V to VNEG – 0.3V Current Fed ..........................................................5mA PWRGD Voltage .............VPORTN + 80V to VPORTN – 0.3V PWRGD Current.....................................................10mA RCLASS Current.....................................................100mA SENSE–, SENSE+ Voltage........................ –0.5V to +0.5V UVLO, SYNC Voltage...................................–0.3V to VCC FB Current..............................................................±2mA VCMP Current .........................................................±1mA Operating Ambient Temperature Range (Notes 4, 5) LTC4268-1C ............................................. 0°C to 70°C LTC4268-1I .......................................... –40°C to 85°C Junction Temperature (Note 5) ............................. 150°C Storage Temperature Range................... –65°C to 150°C (Notes 1, 2) 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VPORTP NC PWRGD PWRGD VNEG VNEG VNEG NC PG PGDLY RCMP CCMP SENSE+ SENSE– UVLO VCMP SHDN NC RCLASS ILIM_EN VPORTN VPORTN VPORTN NC SG VCC tON ENDLY SYNC SFST OSC FB TOP VIEW DKD32 PACKAGE 32-LEAD (7mm × 4mm) PLASTIC DFN TJMAX = 150°C,θJA = 49°C/W, θJC = 4.7°C/W EXPOSED PAD (PIN 33) MUST BE SOLDERED TO HEATSINKING PLANE THAT IS ELECTRICALLY CONNECTED TO GND ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4268CDKD-1#PBF LTC4268IDKD-1#PBF LTC4268CDKD-1#TRPBF LTC4268IDKD-1#TRPBF 42681 42681 32-Lead (7mm × 4mm) Plastic DFN 32-Lead (7mm × 4mm) Plastic DFN 0°C to 70°C –40°C to 85°C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC4268CDKD-1 LTC4268IDKD-1 LTC4268CDKD-1#TR LTC4268IDKD-1#TR 42681 42681 32-Lead (7mm × 4mm) Plastic DFN 32-Lead (7mm × 4mm) Plastic DFN 0°C to 70°C –40°C to 85°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/ |
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