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Manufacturer Part Number Manufacturer Series Packaging Output Type Function Output Configuration Topology Number of Outputs Frequency Switching Operating Temperature Package Case Supplier Device Package Output Phases Voltage Supply VccVdd Duty Cycle Max Synchronous Rectifier Clock Sync Serial Interfaces Control Features Lifecycle
Lifecycle
1726016 SG1577SZ FairchildSemiconductor - Tape & Reel (TR) - - - - 2 - -40°C ~ 85°C (TA) 20-SOIC (0.295", 7.50mm Width) 20-SOP - 8 V ~ 15 V 95% - - - - Obsolete
1726125 FAN6520BIMX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 300kHz -40°C ~ 85°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1726140 FAN6520BM FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 300kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1726141 FAN6520BMX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 300kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1726261 2005ASZ FairchildSemiconductor - Tape & Reel (TR) - - - - - - - 16-SOIC (0.154", 3.90mm Width) 16-SOIC - - - - - - - Obsolete
1726262 KA3511DS FairchildSemiconductor - Tube Transistor Driver - Positive - 2 10kHz -25°C ~ 85°C (TA) 22-DIP (0.400", 10.16mm) 22-DIP 1 14 V ~ 30 V 48% No No - Dead Time Control, Enable, Frequency Control, Power Good Obsolete
1726263 KA3883C FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 96% Yes No - - Obsolete
1726264 UC3843AD FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOP 1 7.6 V ~ 30 V 96% Yes No - - Obsolete
1726265 UC3843AN FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 96% Yes No - - Obsolete
1726266 UC3843D FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 14-SOIC (0.209", 5.30mm Width) 14-SOP 1 7.6 V ~ 30 V 97% Yes No - - Obsolete
1726267 UC3843DX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 14-SOIC (0.209", 5.30mm Width) 14-SOP 1 7.6 V ~ 30 V 97% Yes No - - Obsolete
1726268 UC3843N FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 97% Yes No - - Obsolete
1726269 UC3845D FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 14-SOIC (0.154", 3.90mm Width) 14-SOP 1 7.6 V ~ 30 V 48% Yes No - - Obsolete
1726270 UC3845N FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 48% Yes No - - Obsolete
1727221 FAN7554D FairchildSemiconductor - Tube Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Flyback, Forward Converter 1 500kHz -25°C ~ 85°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 9 V ~ 30 V 95% Yes No - Soft Start Obsolete
1727222 FAN5037MX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 - 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.75 V ~ 5.25 V 85% No No - - Obsolete
1727224 FAN5066MX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 80kHz ~ 1MHz 0°C ~ 70°C (TA) 20-SOIC (0.295", 7.50mm Width) 20-SOIC 1 4.75 V ~ 5.25 V 95% Yes No - Enable, Power Good Obsolete
1727226 FAN5092MTCX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 2 200kHz ~ 2MHz 0°C ~ 70°C (TA) 28-TSSOP (0.173", 4.40mm Width) 28-TSSOP 2 10.8 V ~ 13.2 V 90% Yes No - Enable, Frequency Control, Phase Control, Power Good, Soft Start Obsolete
1727228 FAN6520AMX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 300kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1727231 FAN7554DTF FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Flyback, Forward Converter 1 500kHz -25°C ~ 85°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 9 V ~ 30 V 95% Yes No - Soft Start Obsolete
1727234 FAN5037M FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 - 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.75 V ~ 5.25 V 85% No No - - Obsolete
1727235 FAN5066M FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 80kHz ~ 1MHz 0°C ~ 70°C (TA) 20-SOIC (0.295", 7.50mm Width) 20-SOIC 1 4.75 V ~ 5.25 V 95% Yes No - Enable, Power Good Obsolete
1727236 FAN5092MTC FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 2 200kHz ~ 2MHz 0°C ~ 70°C (TA) 28-TSSOP (0.173", 4.40mm Width) 28-TSSOP 2 10.8 V ~ 13.2 V 90% Yes No - Enable, Frequency Control, Phase Control, Power Good, Soft Start Obsolete
1727237 FAN6520AM FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 300kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1727281 FAN7585SN FairchildSemiconductor - Tube Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Push-Pull 1 9.4kHz -25°C ~ 85°C (TA) 24-SDIP (0.300", 7.62mm) 24-SDIP 1 15 V ~ 30 V 48% No No - Dead Time Control, Frequency Control, Power Good Obsolete
1727282 FAN6520AIM FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 300kHz -40°C ~ 85°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1727283 FAN6520AIMX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 300kHz -40°C ~ 85°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOIC 1 4.5 V ~ 5.5 V 100% Yes No - Enable Obsolete
1727284 FAN5029MPX FairchildSemiconductor - Tape & Reel (TR) PWM Signal Step-Down Positive Buck 5 1MHz 0°C ~ 85°C (TA) 40-WFQFN Exposed Pad 40-MLP (6x6) 5 - - - No - Current Limit, Enable, Soft Start Obsolete
1728656 KA3843B FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 97% Yes No - - Active
1728657 FAN7554 FairchildSemiconductor - Tube Transistor Driver Step-Up/Step-Down Positive, Isolation Capable Flyback, Forward Converter 1 500kHz -25°C ~ 85°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 9 V ~ 30 V 95% Yes No - Soft Start Active
1728661 KA7552A FairchildSemiconductor - Tube Transistor Driver - Positive - 1 - -25°C ~ 85°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 8.7 V ~ 30 V 70% Yes No - - Active
1728662 KA7553A FairchildSemiconductor - Tube Transistor Driver - Positive - 1 - -25°C ~ 85°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 8.7 V ~ 30 V 46% Yes No - - Active
1730377 KA7500CDTF FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 1 1kHz ~ 200kHz -25°C ~ 85°C (TA) 16-SOIC (0.154", 3.90mm Width) 16-SOP 1 7 V ~ 40 V 45% Yes No - Dead Time Control Active
1730565 KA7500CD FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 1kHz ~ 200kHz -25°C ~ 85°C (TA) 16-SOIC (0.154", 3.90mm Width) 16-SOP 1 7 V ~ 40 V 45% Yes No - Dead Time Control Obsolete
1730566 KA3845B FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP 1 7.6 V ~ 30 V 48% Yes No - - Obsolete
1730567 KA3843BD FairchildSemiconductor - Tube Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 14-SOIC (0.154", 3.90mm Width) 14-SOP 1 7.6 V ~ 30 V 97% Yes No - - Obsolete
1730568 KA3843BDTF FairchildSemiconductor - Tape & Reel (TR) Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 14-SOIC (0.154", 3.90mm Width) 14-SOP 1 7.6 V ~ 30 V 97% Yes No - - Obsolete
1730569 KA3843ACS FairchildSemiconductor - Tube - - - - 1 - 0°C ~ 70°C (TA) 8-DIP (0.300", 7.62mm) 8-DIP - 7.6 V ~ 30 V 100% - - - - Obsolete
1730570 KA3524 FairchildSemiconductor - Tube Transistor Driver Step-Down, Step-Up/Step-Down Positive, Isolation Capable Buck, Flyback, Push-Pull 1 350kHz 0°C ~ 70°C (TA) 16-DIP (0.300", 7.62mm) 16-DIP 1 8 V ~ 40 V 45% No No - Enable Obsolete
1730571 KA3846 FairchildSemiconductor - Tube Transistor Driver - Positive - 2 Up to 500kHz 0°C ~ 70°C (TA) 16-DIP (0.300", 7.62mm) 16-DIP 1 6.95 V ~ 40 V - Yes Yes - Current Limit, Enable Obsolete
1732518 SG1577DY FairchildSemiconductor - Tube - - - - 2 - -40°C ~ 85°C (TA) 20-DIP (0.300", 7.62mm) 20-DIP - 8 V ~ 15 V 95% - - - - Obsolete
1732594 FAN1577AMX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver Step-Down Positive Buck 2 340kHz -40°C ~ 85°C (TA) 20-SOIC (0.295", 7.50mm Width) 20-SOP 2 8 V ~ 15 V 90% Yes No - Enable, Frequency Control, Soft Start Obsolete
1732820 SG1577ASY FairchildSemiconductor - Cut Tape (CT) - - - - 2 - -40°C ~ 105°C (TA) 20-SOIC (0.295", 7.50mm Width) 20-SOP - 10 V ~ 15 V 95% - - - - Discontinued
1733883 KA7500C FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 1kHz ~ 200kHz -25°C ~ 85°C (TA) 16-DIP (0.300", 7.62mm) 16-DIP 1 7 V ~ 40 V 45% Yes No - Dead Time Control Active
1733884 KA3525A FairchildSemiconductor - Tube Transistor Driver - Positive - 2 60Hz ~ 430kHz 0°C ~ 70°C (TA) 16-DIP (0.300", 7.62mm) 16-DIP 1 7 V ~ 20 V 49% Yes Yes - Enable, Soft Start Active
1734169 KA3883CDTF FairchildSemiconductor - Tape & Reel (TR) Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOP 1 7.6 V ~ 30 V 96% Yes No - - Not For New Designs
1734201 KA7500B FairchildSemiconductor - Tube Transistor Driver Step-Down Positive Buck 1 1kHz ~ 300kHz 0°C ~ 70°C (TA) 16-DIP (0.300", 7.62mm) 16-DIP 1 7 V ~ 42 V 45% Yes No - Dead Time Control Not For New Designs
1734207 UC3843ADX FairchildSemiconductor - Tape & Reel (TR) Transistor Driver - Positive - 1 Up to 500kHz 0°C ~ 70°C (TA) 8-SOIC (0.154", 3.90mm Width) 8-SOP 1 7.6 V ~ 30 V 96% Yes No - - Last Time Buy

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